HFU HF Underground

Loggings => Utility => Topic started by: Josh on December 20, 2018, 1843 UTC

Title: 11175 USB
Post by: Josh on December 20, 2018, 1843 UTC
11175 USB 1803Z 20DEC18

HOLD FAST in phone patch to SHEEP MAN via station DOWN DEEP for mux setup,

HOLD FAST wants to use a series of GEP's including stations STRINGENT and DEPENDENT, ending at station BEAT BACK, with RF16 and RF1 as the mux channels.

SHEEP MAN replies RF1 is reserved so will use RF12 and RF16.

HOLD FAST says wants to use 16 for the analog side, 12 for the digital.

The following is random chatter from HOLD FAST, might be mistakenly keying mic as only one side of convo heard;
"Go for HOLD FAST"
"Mission number 12085 tack 18"

I'm still waiting for them to show up on uhf mux and/or enter the net via hf.
Title: Re: 11175 USB
Post by: Josh on January 03, 2019, 2113 UTC
Southwest 15 (commercial airliner) raises MAINSAIL on 11175 2105Z 03JAN19, asks if MAINSAIL is able to perform a selcall check for them, lol. MAINSAIL, who apparently doesn't realise this is a commercial flight, asks if they'd like a phone patch, Southwest 15 declines the pp and thanks MAINSAIL for the radio check. Been a long time since I heard commercial aviation on hfgcs.
Title: Re: 11175 USB
Post by: R4002 on January 04, 2019, 1419 UTC
Was Southwest 15 aware they were working the USAF network and not one of the MWARA frequencies when they asked for a selcall check?  lol
Title: Re: 11175 USB
Post by: Josh on January 04, 2019, 2205 UTC
He "sounded" ex mil, a lot of airline pilots got their wings in the USAF, so my guess is he knew exactly where he was radiowise.

Also, BOOK STORE calling ROTARIAN on triple one seven five @ 2210Z 04JAN19, ROTARIAN having read an eam a few mins ago.
ROTARIAN is distorted a good deal, and asks BOOK STORE to repeat last. Some triple one groundstas have been distorted lately.

BOOK STORE requests to check into net at this time.
ROTARIAN seems to be having trouble comprehending, asks BOOK STORE to stand by one mike.

ROTARIAN asks BOOK STORE to authenticate LFU.
BOOK STORE authenticates with J, and asks ROTARIAN to authenticate AUV.
ROTARIAN authenticate AUV with V, and shows BOOK STORE in the net at 2215Z.

Title: Re: 11175 USB
Post by: Josh on January 05, 2019, 2300 UTC
11175 USB FSK off @ 2300Z 05JAN19.
Title: Re: 11175 USB
Post by: R4002 on January 06, 2019, 1813 UTC
I’ve never heard digital on 11175 kHz USB....11180 kHz and 11181 kHz, on the other hand...

Title: Re: 11175 USB
Post by: Josh on January 06, 2019, 1859 UTC
11181 is a SIPRNET gateway with ALE traffic, 11184 is a common HFDL freq.

https://en.wikipedia.org/wiki/SIPRNet
(https://upload.wikimedia.org/wikipedia/commons/6/6f/Intel_GreenDoor.jpg)
That's a 4k dolla world map clock on the wall there.

https://en.wikipedia.org/wiki/High_Frequency_Data_Link
Title: Re: 11175 USB
Post by: Josh on January 08, 2019, 1507 UTC
11175 FSK 1505Z 08JAN19
Short fsk burst, about a minute, and back to band noise.

AUDIO KIT with 50 char eam @ 1515Z;
glz4fg odworoqqvjotgogeqpxptpvl332booxtwwwsrwu3sppo



SENSITIVE requests to enter net via station AUDIO KIT, having comms issues so far, 1728Z.
AUDIO KIT requests SENSITIVE authenticate ACS, SENSITIVE responds with J.
SENSITIVE requests AUDIO KIT authenticate CAD, AUDIO KIT responds with L, and shows SENSITIVE in the net @ 1730Z.
Title: Re: 11175 USB
Post by: Josh on January 08, 2019, 2246 UTC
@ 2240Z NEW BLOOD calling AUDIO KIT for pp (also copied on 325.200Mhz), AUDIO KIT interrupts with an eam, SENSITIVE relays ongoing eam.
Title: Re: 11175 USB
Post by: Josh on January 09, 2019, 2223 UTC
SOPHOMORE calling SKYTRAIL via pp by AUGUSTINE re burning on RF16 and RF12 and have lost connection @ 2222Z 09JAN19
Title: Re: 11175 USB
Post by: Josh on January 15, 2019, 1914 UTC
1900Z 15JAN19
DOOM 61 (B-52H 2nd BW, 96th BS, Barksdale AFB, LA) calling for any radio, radio check.

SKULL 21 (B-52H 2nd BW, 20th BS, Barksdale AFB, LA) answers DOOM 61 with 5x5 report.

DOOM 61 asks for radio check (apparently second hf radio), SKULL 21 answers with I read you LIMA CHARLIE.

1921Z
TITUS 52 (C-12s former US Embassy liaison acft Joint Base Andrews MD) calling multiple times for any radio, no joy.
Qsy's to 8992 and still TITUS 52 has issues with Andrews, Andrews being very distorted for last several days and claims callers are distorted.

This is what you get when you remote everything over phone lines.


Title: Re: 11175 USB
Post by: Traveling Wave on January 15, 2019, 1952 UTC
1944 UTC -   Hearing communications between Criteria and Mainsail, Criteria requests to enter the net and is permitted by Mainsail after authentication .
Title: Re: 11175 USB
Post by: Josh on January 15, 2019, 2006 UTC
2005Z
CHILL 3 (B-52H 5th BW/23rd BS Minot AFB, ND) being called by CHILL LEAD and interrupted by eam.
Title: Re: 11175 USB
Post by: Josh on January 15, 2019, 2048 UTC
1944 UTC -   Hearing communications between Criteria and Mainsail, Criteria requests to enter the net and is permitted by Mainsail after authentication .

CRITERIA qsy to CHARLIE ECHO window aka 9031 @2040Z.
Radio checks with CRITERIA and PALM LEAF, CRITERIA request PALM LEAF go secure voice (ANDVT) on hf.

These guys spent hours trying to get digital voice and data to work, from setting fsk high to low tones to all sorts of things.
Title: Re: 11175 USB
Post by: Traveling Wave on January 15, 2019, 2129 UTC
2146 UTC- Mainsail, Mainsail this is Parcheesi, Parcheesi,  are you in contact with Base Hit over.
               
Title: Re: 11175 USB
Post by: R4002 on January 16, 2019, 1749 UTC
Strong EAM coming across on 8992 USB, 11175 USB, 13200 USB and 15016 USB at 1747 UTC (nothing heard on 6712 USB or 6739 USB while the other freqs were active).  Best signals on 11175 kHz and 13200 kHz.  15016 kHz had a strong echo that the other frequencies didn't have.  Came across EAM on 8992 USB while tuning around for daytime pescadores/freebanders in the 8-9 MHz and 10-11 MHz regions on the COMMSIGMA KiwiSDR on the CT/MA border

"This completes message of 63 characters, this is MILKWEED out."
Title: Re: 11175 USB
Post by: Josh on January 17, 2019, 2159 UTC
2157Z 17JAN19
BROAD BEAM and CAKE MIX in pp via station FULLBACK, working out UHF mux channels to burn, RF16 is taken so they settle on RF17 analog, meeting on orderwire for setup.
Title: Re: 11175 USB
Post by: Josh on January 27, 2019, 1830 UTC
BFSK 75 Baud, 850 Shift, 924 Hz BW, ACF 0. 1802Z 27JAN19 Suspected S4481 but no KG-84 synchs yet. K500 suggests CV 786, Rockwell 700B, S4481, S5514.
Title: Re: 11175 USB
Post by: Josh on January 31, 2019, 2140 UTC
ASH CAKE requests KEY LOCK meet him on the CHARLIE FOX window @ 2135Z 31JAN19, anyone know what freq CF is?
Title: Re: 11175 USB
Post by: R4002 on February 01, 2019, 1401 UTC
According to the MT mil-gov frequency list:

Strategic Communications Wing 1 SCW-1 Frequency Channel Matrix HF-SSB

6691 kHz USB - CA - Charlie Alpha
11187 kHz USB - CB - Charlie Bravo
17892 kHz USB - CC - Charlie Charlie

Unknown designators:
11267 kHz USB, 13240 kHz USB, 14615 kHz USB

Apparently CD, CE, CF, CG, CK and CL have been referenced on-air, but their frequencies have not been confirmed. 

Title: Re: 11175 USB
Post by: Josh on February 01, 2019, 1803 UTC
CE is conveniently located at 9031, also many thanks for the info!

Also also, almost continuous eams on triple one @ 1800Z.
Title: Re: 11175 USB
Post by: R4002 on February 01, 2019, 1903 UTC
9031 USB has been logged by myself even, last heard FRESHMAN working BOAT DOCK on 9031 kHz
Title: Re: 11175 USB
Post by: Josh on February 04, 2019, 2130 UTC
11175 USB 1803Z 20DEC18

HOLD FAST in phone patch to SHEEP MAN via station DOWN DEEP for mux setup,

HOLD FAST wants to use a series of GEP's including stations STRINGENT and DEPENDENT, ending at station BEAT BACK, with RF16 and RF1 as the mux channels.

SHEEP MAN replies RF1 is reserved so will use RF12 and RF16.

HOLD FAST says wants to use 16 for the analog side, 12 for the digital.

The following is random chatter from HOLD FAST, might be mistakenly keying mic as only one side of convo heard;
"Go for HOLD FAST"
"Mission number 12085 tack 18"

I'm still waiting for them to show up on uhf mux and/or enter the net via hf.

Via udxf, apparently USAF MARS is also used to coordinate GEP transitions between NCA ac and HFGCS. See 13927 USB for MARS phone patch fun.
Title: Re: 11175 USB
Post by: Josh on February 04, 2019, 2346 UTC
Speaking of MARS, SKULL 12 calls on triple one for MARS radio for pp, corrects himself and calls for MAINSAIL, raises WESTCOAST.

SKULL 12 has mask noise as well as jet engine noise, so kinda narrows down who it can be;
SKULL F-16C/D 80th FS Kunsan Korea
SKULL B-52H 2nd BW/20th BS, Barksdale AFB, LA
SKULL F-15 54rd TEG Eglin AFB FL
SKULL A-10 81ST FS SPANGDAHLEM AB GE
SKULL C-130H 179th AMW/164th AS OH ANG Mansfield OH

Call made to Georgia commercial number, pp not going very well.
Title: Re: 11175 USB
Post by: Josh on February 05, 2019, 2204 UTC
RED RIVER @ 2202Z 05FEB19 in flamboyant eam reading simulcast over HFGCS.
Title: Re: 11175 USB
Post by: R4002 on February 05, 2019, 2219 UTC
WEST COAST with test count at 2219 UTC on 11175 kHz USB  "This is WEST COAST with a test count, OUT"

MAINSAIL with another test count at 2223 UTC, seemed to be the same operator, then

MAINSAIL this is [unreadable] how do you read me? at 2223, sounds like an aircraft doing radio checks, much weaker, YL op

More test counts at 2224/2225 UTC.
Title: Re: 11175 USB
Post by: shadypyro on February 05, 2019, 2336 UTC
Riverman Riverman this is interstate? over. Riverman asking last station to say again. Excellent signal on 11175 USB 23:36 UTC
Title: Re: 11175 USB
Post by: Josh on February 07, 2019, 2036 UTC
LOOKING GLASS standing by for traffic @ 2029Z 07FEB19

https://fas.org/nuke/guide/usa/c3i/ec-135.htm

Our old friend NIGHTWATCH being called by LOOKING GLASS (yl) @ 2300Z, answered by NIGHTWATCH but ignores reply. LOOKING GLASS then calls for any station. Note that just because you can hear them doesn't mean they can hear each other.
Title: Re: 11175 USB
Post by: Josh on February 08, 2019, 1841 UTC
CON GAME calling MESS KIT for authentication into net @ 1841Z 08FEB19
Title: Re: 11175 USB
Post by: R4002 on February 08, 2019, 2132 UTC
ALL STATIONS, ALL STATIONS, this is CON GAME... at 2131 UTC into EAM on 11175 kHz USB w/ some echo
Title: Re: 11175 USB
Post by: Matt285 on February 08, 2019, 2346 UTC
Pmdpgp4wwwjj4jhjbbbg.... Kanye out! ? 23:46
Title: Re: 11175 USB
Post by: Matt285 on February 08, 2019, 2355 UTC
PMDPG4WWWJJ4JHJBBGGG....Katya out! ?23:30
Title: Re: 11175 USB
Post by: Josh on February 09, 2019, 1802 UTC
CHAOS 43 comms check with CHAOS 44 @1800Z 09FEB19

CHAOS B-2 509th BW Whiteman AFB MO
CHAOS B-52H 2BW Barksdale AFB LA
Title: Re: 11175 USB
Post by: R4002 on February 13, 2019, 1619 UTC
On-going EAM from BANK LOAN on 11175 kHz USB (and 13200 USB and other simulcast frequencies) at 1619 UTC

1619 UTC - This is BANK LOAN, out.
Title: Re: 11175 USB
Post by: Matt285 on February 13, 2019, 1744 UTC
Is this just some civilian sailors talking on HF marine rigs? Any theory on the odd number and letter schemes? Thanks
Title: Re: 11175 USB
Post by: R4002 on February 13, 2019, 1817 UTC
11175 kHz USB is used by the US Air Force as part of their Global Communications System (HF-GCS).  Other frequencies used as part of this system include 4742 kHz USB, 6712 kHz USB, 6739 kHz USB, 8992 kHz USB, 13200 kHz USB and 15016 kHz USB.  11175 USB is the most active of these frequencies.  There are dozens of other "discrete" frequencies that are also part of the system.  11175 USB is used for Emergency Action Messages (EAMs) and other military communications in USB voice.

So short answer, no, its not fishermen, although they are found all over HF.  It's the US military.  The letter and number scheme are encrypted messages using a One-Time-Pad (OTP) encryption technique to send secure messages to military assets. 
Title: Re: 11175 USB
Post by: Matt285 on February 13, 2019, 1859 UTC
Thanks R4002. I'm familiar with numbers stations. Hadn't heard of this before now. The tone just seemed very laid back and not very professional compared to other more computer generated even toned voices. Wonder why Ive never seen this in the Spy numbers category?
Title: Re: 11175 USB
Post by: R4002 on February 13, 2019, 1907 UTC
I can certainly see the argument for putting it in the Spy Numbers section.  However, since 11175 USB (and the other HF-GCS frequencies) are used for two-way communications, telephone patches and other military voice communications its considered a utility network and not a spy numbers station. 

The operators on the HF-GCS will sometimes do some very entertaining things.  They are professionals, though. 
Title: Re: 11175 USB
Post by: Josh on February 13, 2019, 1930 UTC
Sometimes hfgcs lights up with honest to gawd spy traffic, when they send a message to one of the elint birds.
https://en.wikipedia.org/wiki/Boeing_RC-135
Title: Re: 11175 USB
Post by: Josh on February 18, 2019, 1907 UTC
BINOCULAR with laughing operator, can't keep eam alive @ 1903Z 18FEB19.
Title: Re: 11175 USB
Post by: Josh on March 01, 2019, 1643 UTC
RAYMOND 33 calling MAINSAIL @ 1611Z 01MAR19
Raises WEST COAST for radio checks.

RAYMOND 33 28TH BW ELLESWORTH CP



YANKEE 180 calling any station for H radio check 1650Z, raises WEST COAST

YANKEE F-16, Luke AFB AZ
YANKEE C130's CT ANG, 103rd AW Bradley ANGB CT
YANKY KC-130T VMGR-452, Stewart ANGB, NY
Title: Re: 11175 USB
Post by: Josh on March 06, 2019, 1826 UTC
FEAR 33 (B-52H 5th BW Minot AFB ND) calling multiple times on triple one for radio check and getting no response. 1822Z 06MAR19
Title: Re: 11175 USB
Post by: Josh on March 07, 2019, 2047 UTC
DOOM 82 B-52H 2nd BW, 96th BS, Barksdale AFB, LA calling multiple times on triple one for radio check and getting no response. 2045Z 07MAR19

Eam interrupts DOOM 82 several times.
Title: Re: 11175 USB
Post by: R4002 on March 08, 2019, 1746 UTC
On-going EAM at 1744 UTC with female operator on 11175 kHz USB.  Good signal on 13200 USB with some echo or long-path QRM.

EIMIHJZS2FC7AX3VP3KTGTMJW5S7JI THIS IS BLUEPRINT OUT at 1746 UTC.

At 1747 UTC, BLUEPRINT (same YL op) came back on with another ALL STATIONS, ALL STATIONS call, same echo/reverb-like QRM in the background (probably due to multipath).

At 1748 UTC, checked 13200 kHz USB and 15016 kHz USB, SIO 444 signals on those two frequencies as well, both exhibit minor multipath/echo QRM but the message is 100% readable.

6712 kHz USB is quiet, can hear something very faint on 6739 kHz USB, nothing on 4724 kHz USB and 8992 has a strong data signal on it with the EAM underneath (???)

At 1750 UTC, now male operator "message of 41 characters follows" (I missed the callsign while changing freqs)

Switched back up to 15016 USB at 1751 UTC (15016 kHz seems to have the best signal at the moment)

"Disregard this transmission, this is BLUEPRINT, out" at 1751 UTC.

1752 UTC - a second OM operator "All stations, all stations, this is BLUEPRINT, standby" into authentication sequence then alphanumeric message (on-going at 1753 UTC).  At 1754 UTC "This is BLUEPRINT, out"
Title: Re: 11175 USB
Post by: Josh on March 08, 2019, 2108 UTC
Aircraft 29000 (two nine thousand) working ANDREWS with multiple radio checks. 2100Z 08MAR19

https://en.wikipedia.org/wiki/Boeing_VC-25


Title: Re: 11175 USB
Post by: Matt285 on March 11, 2019, 1904 UTC
I listened yesterday afternoon (3/10) and heard a female calling off a string of numbers and letters. This was approx 4:30 Eastern standard time. Don't have my log with me to provide the proper UTC. I believe the call sign was 'Good News"
Title: Re: 11175 USB
Post by: Josh on March 12, 2019, 1814 UTC
Almost always have triple one playing in the background if I'm home. Since the Pro2 does dual watch I've triple one and the day primary for Trenton Mil playing, both freqs are on the fish finder display. I've tuned the lower half of 11MHz since I first got a stable hf rig in the late 80s, there's almost always something going on. Down the band you've got Russian Navy T600 (fsk mode) and USN Link11, further up there's worldwide HFDL and USAF ALE nets, ARINCs all over, RAF Vomit I mean Volmet, Asian pescadoreadors, everyone loves the lower half of 11MHz.
Title: Re: 11175 USB
Post by: Teotwaki on March 12, 2019, 2355 UTC
These two have been active on and off for the last hour

11,175 KHz USB  COPY-04 and COPY-21, switching to Two-Two-Five-Five  (225.500 MHz?)    23:50Z 12 March2019

Jim
Orange County, CA
Title: Re: 11175 USB
Post by: autovon on March 13, 2019, 0001 UTC
Elmendorf just did a test count.  Haven't heard that ID on for a while.

A decent amount of Skymaster traffic going on this evening.  B-2s are up in the Midwest and some of it is from them.
Title: Re: 11175 USB
Post by: Josh on March 13, 2019, 1911 UTC
Elmendorf just did a test count.  Haven't heard that ID on for a while.

A decent amount of Skymaster traffic going on this evening.  B-2s are up in the Midwest and some of it is from them.

That splains the traffic on UHF earlier today complete with kazoo microphoned B2s. Also, HF propa has been amazingly poor the last few days, either the band is reeeeeally long or the propa just isn't going anywhere, so nice catch on Elmendorf.
Title: Re: 11175 USB
Post by: Josh on March 14, 2019, 1914 UTC
DOOM 01 (B-52H 2nd BW, 96th BS, Barksdale AFB, LA) with "any station, radio check, over" 1917Z 14MAR19
Title: Re: 11175 USB
Post by: Josh on March 18, 2019, 1742 UTC
Home Of Strategic Command And Some Of The USAF's Most Prized Aircraft Is Flooding
The home to America's prized RC-135 "Rivet Joint" strategic reconnaissance and E-4B "Nightwatch" Advanced Airborne Command Post aircraft, as well as others, and the headquarters of U.S. Strategic Command (STRATCOM), is flooding with water from a swollen Missouri River.
http://www.thedrive.com/the-war-zone/26991/home-of-strategic-command-and-some-of-usafs-most-prized-aircraft-is-flooding?fbclid=IwAR0E4unWymnV_dASGTJZ5mmsdePgisJYxU_oJ5obp_LzJxap9uxXVxZP2eM


At least the flood prone nuke plant 30 miles to the north is no longer in operation.
Title: Re: 11175 USB
Post by: Josh on March 19, 2019, 2146 UTC
LONG HAND with an lengthy eam accompanied by someone in the background whining and moaning about "what are we gonna do now", lol. 2130Z 19MAR19

https://www.youtube.com/watch?v=dsx2vdn7gpY
Title: Re: 11175 USB
Post by: Rizla on March 20, 2019, 0011 UTC
Thank you very much for the video. ;-)  I didn't hear that particular discussion but then sometimes the "triple one seven-five" guys/gals don't get noticed by this author  till 7AM+ local. 8992 usually has same, only louder.
Title: Re: 11175 USB
Post by: Josh on March 22, 2019, 1828 UTC
A little kid just did a test count over triple one, "this is .... mainsail with a test count, mainsail out" lol.
1825Z 22MAR19

and another
Title: Re: 11175 USB
Post by: ChrisSmolinski on March 22, 2019, 1911 UTC
A little kid just did a test count over triple one, "this is .... mainsail with a test count, mainsail out" lol.
1825Z 22MAR19

and another

I hope he got the message right

(https://i.imgur.com/GIuQqHM.jpg)
Title: Re: 11175 USB
Post by: Josh on March 22, 2019, 1930 UTC
lol ossum!
Title: Re: 11175 USB
Post by: Josh on March 22, 2019, 2135 UTC
HOLD FAST and SHIRT TAIL (likely E4 or E6 working each other or ground station) QSY from triple one to the CHARLIE ECHO window aka 9031 for data setup. 2130Z 22MAR19

For the first time in ages I'm using dsp nr to monitor, things are so poor on hf right now - thank you solar fart. Just a hint of noise reduction can make the dif between joy and no joy.
Title: Re: 11175 USB
Post by: Josh on April 02, 2019, 1904 UTC
FEAR 13 (B-52H 5th BW Minot AFB ND) calling RAYMOND 12 (5 BW, MINOT AFB ND) @ 1745Z 01APR19
FEAR 13 calling MAINSAIL and getting no response, calls FEAR 01 and FEAR 01 responds with radio check.

Trenton Mil is not HFGCS!
Title: Re: 11175 USB
Post by: Josh on April 08, 2019, 1833 UTC
A sexy female eam reader reading sexy eams sexily @ 1831Z 08APR19
Title: Re: 11175 USB
Post by: Josh on April 10, 2019, 1649 UTC
DOOM 71 (B-52H 2nd BW, 96th BS, Barksdale AFB, LA ) calling for MAINSAIL radio check, no response from MAINSAIL, calls DOOM 73 who responds with radio check. 1618Z 10APR19

Title: Re: 11175 USB
Post by: Josh on May 01, 2019, 1828 UTC
01MAY19 1826Z REST CAMP with 100 character eam being sent right now, tune in for the excitement!
Title: Re: 11175 USB
Post by: Josh on May 02, 2019, 2036 UTC
Lotsa 100, 52, 47, and 36 character eams going out today.
Title: Re: 11175 USB
Post by: Token on May 05, 2019, 1544 UTC
On 03 May there was, for my logs, a record number of Skykings in a short period of time.

11 separate Skykings, with no errors or corrections, from 0052z to 0447z, 03 May, 2019.  That number matches one other date in my logs, 25 October, 2017, also 11 that day.  In 2015 I logged 12 on one day, but several of them were corrections ("ignore my last" etc).

I don't really do the HF-GCS network as such, but I do record a few other things nearly 24/7, and I end up catching a lot of HF-GCS traffic as collateral traffic.

T!
Title: Re: 11175 USB
Post by: Josh on May 07, 2019, 1931 UTC
Today around 1340Z there were three Akula bursts on either 11175 or 11232, something I've never heard on either freq before now. If anyone has a timestamped iq stream of this it'd be nice to have it. I was in the other room at the time, thus I didn't see what freq was being used. Rather cheeky of them to use either of these two freqs anyway. I suppose it's one way for the emitter to ensure the message gets to the command chain, as USAF and Canadian Air Force are top priorities for Russian sigint collection, meaning multiple Russian receivers are staring at HFGCS and Canadian mil radio freqs 24/7.

See here for Akula;
http://i56578-swl.blogspot.com/2015/07/cis-navy-shark-akula.html
Title: Re: 11175 USB
Post by: Josh on May 07, 2019, 2252 UTC
Earlier today I heard a E4/E6 flight authenticating into the net with CAT as part of the authentication process, just now at 2248Z another E4/E6 flight authenticated into the net with CAT. Just thought that kinda odd to use the same phonetics.
Title: Re: 11175 USB
Post by: Josh on May 14, 2019, 1930 UTC
CHAOS 43 (B-2 509th BW Whiteman AFB MO or B-52H 2BW Barksdale AFB LA) calling MAINSAIL for rc @ 1920Z 14MAY19
Since he sounded like he was using a kazoo for a mic my bet is a B2.

SKULL 21 (B-52H 2nd BW/20th BS, Barksdale AFB, LA) calling MAINSAIL for rc @ 1926Z 14MAY19
Title: Re: 11175 USB
Post by: Josh on May 21, 2019, 2018 UTC
11175 USB 2013Z 21MAY19

HONORARY and JUSTICE in pp via COLOSSAL (HONORARY E4 or E6 naoc, JUSTICE is GEP for v/uhf mux) setting up uhf mux RF1 for digital, as well as RF17 for analog modems.
Title: Re: 11175 USB
Post by: shadypyro on May 28, 2019, 2118 UTC
heard Newblood requesting phone patch to No Pond?
Title: Re: 11175 USB
Post by: Josh on May 28, 2019, 2244 UTC
heard Newblood requesting phone patch to No Pond?

MILL POND working NEW BLOOD @ 2243Z 28MAY19
Title: Re: 11175 USB
Post by: Josh on May 28, 2019, 2256 UTC
Pactor psk bursts followed by pactor 1 ack reversals, 2254Z 28MAY19. Now into FSK ARQ mode with distant station. Now psk. WTF over?
Title: Re: 11175 USB
Post by: shadypyro on May 31, 2019, 0449 UTC
heard Newblood requesting phone patch to No Pond?

MILL POND working NEW BLOOD @ 2243Z 28MAY19

Thank you! Wasn't sure if I heard Mill Pond correctly
Title: Re: 11175 USB
Post by: Josh on May 31, 2019, 1702 UTC
OFFUT interrupts MAINSAIL radio check from REACH 71 with radio check request. 1655Z 31MAY19

You're welcome on the correction. Sometimes they will change callsign abruptly but usually to something not related to their previous callsign - such as NO POND to MILL POND.
Title: Re: 11175 USB
Post by: Teotwaki on June 02, 2019, 2105 UTC
20:35Z June 2

OWNERSHIP calling CENTONIC. Very strong signal on my NRD-525

Could barely hear CENTONIC responding.

Nothing further heard
Title: Re: 11175 USB
Post by: Josh on June 03, 2019, 1958 UTC
PARCHEESI calling SCORE CARD with request to check out of the net @ 1955Z 03JUN19, SCORE CARD inaud here.
Title: Re: 11175 USB
Post by: Josh on June 07, 2019, 1754 UTC
RASPUTIN with eam of 104 characters @ 1745Z 01JUN19
Oddly, RASPUTIN was also active a day or so ago.
Title: Re: 11175 USB
Post by: Josh on June 13, 2019, 2047 UTC
heard Newblood requesting phone patch to No Pond?

MILL POND working NEW BLOOD @ 2243Z 28MAY19

Thank you! Wasn't sure if I heard Mill Pond correctly

MILL POND (HFGCS ground station) requests BIG BURLY (HF callsign for E4 or E6 on station) to check out of the net @ 2045Z 13JUN19
Title: Re: 11175 USB
Post by: Josh on June 19, 2019, 1814 UTC
Just caught SKYMASTER station direct its component QUIET MAN to push traffic to ZULU 120, confirming use of the Zulu freq plan. 1800Z 19JUN19 Due all the activity and callsigns I suspect this is quarterly exercise

QUIET MAN directs MACINTOSH to the Charlie Echo window.
MACINTOSH queries QUIET MAN about use of ZULU 120. QUIET MAN has no knowledge of use. 1843Z

CHARLIE Windows;
6691  CHARLIE ALPHA
9031  CHARLIE ECHO
11187 CHARLIE BRAVO
17892 CHARLIE CHARLIE

Unknown designators:
11267 13240 14615

CD, CF, CG, CK and CL have been referenced on-air, but their frequencies have not been confirmed.
-------------------------------------------------------------------
Zulu Frequency/Designator Matrix (USB/frequencies in kHz)

Z100 3068.0
Z105 3116.0
Z110 3134.0 (tentative)
Z115 3143.0
Z120 3295.0
Z124 Unknown
Z125 4495.0
Z130 4472.0
Z135 4745.0
Z140 5026.0
Z145 5705.0
Z150 5800.0
Z155 5875.0
Z160 6715.0
Z165 6757.0
Z170 7831.0
Z174 Unknown
Z175 9016.0
Z180 9057.0
Z185 9809.0
Z190 10204.0
Z195 Unknown
Z200 11181.0
Z205 11494.0
Z210 11229.0
Z211 12070.0
Z215 13242.0
Z220 13245.0
Z225 13907.0
Z230 15046.0
Z235 15094.0
Z240 15097.0
Z245 Unknown
Z250 15962.0
Z255 17973.0
Z260 18006.0
Z265 18024.0
Z270 18027.0
Z275 18046.0 (tentative)
Z280 18387.0
Z285 Unknown
Z290 19665.0
Z295 19755.0
Z300 20167.0
Z305 20407.0
Z310 23337.0
Z315 23872.0
Z320 24828.0 (tentative)
Z325 24978.0 (tentative)
Z330 26532.0 (tentative)
Z335 26859.0
Z340 Unknown
Z345 Unknown
Z350 Unknown
Title: Re: 11175 USB
Post by: MegatonRange on June 19, 2019, 2137 UTC
A USN exercise is also underway. 7407.0, 8035.0 in USB voice & numerous other frequencies with EAM traffic.
Title: Re: 11175 USB
Post by: MegatonRange on June 19, 2019, 2147 UTC
A USN exercise is also underway. 7407.0, 8035.0 in USB voice & numerous other frequencies with EAM traffic.
---
8035.0 station is 8 GOLF ALPHA, station on 7407.0 is 9 QUEBEC SIERRA & another on 4515.0 is SIERRA YANKEE SIERRA. SYS on 4515.0 completed a message of 120 characters around 2140 UTC.
Title: Re: 11175 USB
Post by: Josh on June 24, 2019, 2022 UTC
The nice lady in the naoc flight is simulkeying (my guess mistakenly) on hf, 11175 to be exact, and is discussing GEP channels to burn on;
"that's correct sir,
looking for analog 18 and digital 1,
sir we now have you loud and clear burning on 1, 
if we have some issues we'll give you a call"
Title: Re: 11175 USB
Post by: Josh on July 24, 2019, 1633 UTC
DOOM 73 (B-52H 2nd BW, 96th BS, Barksdale AFB, LA) with rc via POT LUCK 1629Z 24JUL19

BONE FISH authenticating into net via POT LUCK 1633Z 24JUL19
Title: Re: 11175 USB
Post by: Josh on July 29, 2019, 1518 UTC
SKULL 11 (B-52H 2nd BW/20th BS, Barksdale AFB, LA probable) looking for radio check any station.
1515Z 29JUL19
Title: Re: 11175 USB
Post by: Josh on July 30, 2019, 2248 UTC
The sun musta farted, hardly a peep on hfgcs today.
Title: Re: 11175 USB
Post by: Josh on August 09, 2019, 1522 UTC
Some kind of medical emergency ongoing with pp to some medical help, only one side of contact heard here.
Female mainsail op in contact with 5 (or HIVE/HIKE,  EC-135 552nd ACW, Tinker AFB, OK) 89 for pp to commercial pstn after med assistance. Hard to tell callsign, tx is distorted.
1521Z 08AUG19
Title: Re: 11175 USB
Post by: autovon on August 09, 2019, 1746 UTC
EC-135s have been in the boneyard for 20 years  ;)
Title: Re: 11175 USB
Post by: Josh on August 11, 2019, 1747 UTC
EC-135s have been in the boneyard for 20 years  ;)

Lol thanks for that but it was the only close to rational callsign in the db.
Title: Re: 11175 USB
Post by: Josh on August 19, 2019, 2153 UTC
75Bd BFSK S4481 w presumed KG84C traffic @ 2141Z 19AUG19

someone hit the wrong button probably
Title: Re: 11175 USB
Post by: Josh on August 20, 2019, 1700 UTC
DOOM 62 (B-52H 2nd BW, 96th BS, Barksdale AFB, LA) calling DOOM 61 for rc 1645Z 20AUG19
POST STAMP aka MAINSAIL replies.
Title: Re: 11175 USB
Post by: Josh on August 21, 2019, 2155 UTC
EC-135s have been in the boneyard for 20 years  ;)

I shoulda posted RC135, there's one working at FL31 somewhere inside the US right now.
Title: Re: 11175 USB
Post by: Josh on August 22, 2019, 1707 UTC
WALDO 51 (KC-135R NJ ANG 108W/141ARS Joint Base McGuire-Dix-Lakehurst NJ) calling for rc, no response from MAINSAIL. 1600Z 22AUG19

WARLOCK 07 (various blimps VSX-1 NAS Patuxent River MD)
calling for rc @ 1700Z 22AUG19
 first time hearing a blimp on HFGCS. If it's a blimp lol.

ANDREWS directs WARLOCK 07 to New York Radio on 11342 1802Z

SKULL 71 (B-52H 2nd BW/20th BS, Barksdale AFB, LA) calling any radio, radio check 1807Z
Title: Re: 11175 USB
Post by: Josh on August 25, 2019, 1908 UTC
CHAOS 43 (B-2 509th BW Whiteman AFB MO) calling for rc, gets responses from CHAOS 44 and BLACK EYE
1630Z 25AUG19
Title: Re: 11175 USB
Post by: Josh on September 19, 2019, 2234 UTC
Murmansk-BN HF EW Complex
Murmansk-BN has been operationally active from at least 2014 when the 475th Independent EW Centre of the Russian navy set up a complex in the Crimea south of Sevastopol. The system has a primary role of eliminating, or trying to eliminate, High Frequency (HF) broadcasts from NATO forces – in particular the HF Global Communications System of the United States (HFGCS).
HFGCS operates on well known HF frequencies with regular broadcasts of Emergency Action Messages (EAM’s) and other operational messages, phone patches etc. as required. To this date though, I am unaware of any reports that HFGCS has been interfered with by jamming. This in itself isn’t surprising. HF is a difficult thing to jam due to the very nature of using the ionosphere to carry the broadcasts. Throw in multiple frequencies in use at the same time, the same message being broadcast on numerous occasions, propagation and all other things related to HF reception means the message is likely to get through regardless of the attempts made to jam.
https://planesandstuff.wordpress.com/
Title: Re: 11175 USB
Post by: Josh on September 23, 2019, 2233 UTC
LYSTERINE called by KEG NAIL for qsy to CHARLIE ECHO window (9031) for discrete. Both show up on 9031 and prepare for hf data training, both were stronger on triple one. 2231Z 23SEP19

Both return to triple one due weak sigs.
Will meet on Z280 (18387.0) 2236Z.
Nil heard 18387, my ZULU list may be out of date.
Title: Re: 11175 USB
Post by: Josh on September 27, 2019, 2112 UTC
PURE GOLD requesting SKY TRAIL exit net at this time.
2105Z 27SEP19
Title: Re: 11175 USB
Post by: Josh on September 30, 2019, 2030 UTC
SKULL 12 (B-52H 2nd BW/20th BS, Barksdale AFB, LA) calling any radio for rc. 2123Z 30SEP19
Title: Re: 11175 USB
Post by: Josh on October 01, 2019, 2340 UTC
BOULEVARD (presumed E6 or E4) checking into net via BACK FEED 0036Z 02OCT19
Title: Re: 11175 USB
Post by: Josh on October 04, 2019, 1834 UTC
SKULL 51 (B-52H 2nd BW/20th BS, Barksdale AFB, LA) with rc to MAINSAIL 1929Z 04OCT19 followed by 47 character EAM by MAIL CALL.
Title: Re: 11175 USB
Post by: Josh on October 08, 2019, 0033 UTC
SEA BASS calling SHAD RACK @ 0124Z 11OCT19
SHAD RACK is broken and unreadable 
Title: Re: 11175 USB
Post by: Teotwaki on October 14, 2019, 2109 UTC
Just now

Ascension (net control?) authentication of two other stations entry into a net

"Bravo Alpha Echo with Tango"
"Kilo Alpha November"
Title: Re: 11175 USB
Post by: jasmine on October 14, 2019, 2211 UTC
"Hickam Global, comms check, this is Mystery, over."
Title: Re: 11175 USB
Post by: Josh on October 14, 2019, 2316 UTC
Just now

Ascension (net control?) authentication of two other stations entry into a net

"Bravo Alpha Echo with Tango"
"Kilo Alpha November"

When a NIGHTWATCH element checks into "the" net, it's a E4 or E6 passing tokens to the necos (net control station) so as to positively id each other. Both ends have to pass the correct tokens satisfying each other or the net connection is denied. This is usually concurrent with wideband duplex fm multiplex signals on the mil aviation band from the NIGHTWATCH station to the GEP (Ground Entry Point) and vice versa.

You'll know when training is ongoing as a station might blatantly try to get another station to commit or allow an error in authenticating or providing a phone patch or current traffic for station X, or perhaps passing something in the red (unencrypted voice) that should be passed in the green (encrypted voice), however training is often done on discrete freqs that are often close by but not on triple one itself.

Here's a nifty diagram of what's going on;
(https://browse.startpage.com/do/show_picture.pl?l=english&rais=1&oiu=http%3A%2F%2Fwww.all-hazards.com%2Fpaccs%2Fwwmccs2a.gif&sp=a64b952b1aced5d2e2776732b1b9abfc&t=default)
Title: Re: 11175 USB
Post by: Josh on October 21, 2019, 2123 UTC
FERN POT in pp via BARN ROOF to unid GEP control, requesting RF16 (UHF Mux channel) and will meet on orderwire. 2050Z 21OCT19

COLORADO calling for rc, is answered by FLORIDA, both with typical B2 audio artifacts, presumed B2 bombers 2055Z 21OCT19

GEORGIA calling for rc 2200Z with response by MAINSAIL, ground stas or mebbe B2??

And HAWAII with autotuner tones before xmission @ 2243Z.
Title: Re: 11175 USB
Post by: Josh on October 24, 2019, 2054 UTC
FERN POT in pp via BARN ROOF to unid GEP control, requesting RF16 (UHF Mux channel) and will meet on orderwire. 2050Z 21OCT19

COLORADO calling for rc, is answered by FLORIDA, both with typical B2 audio artifacts, presumed B2 bombers 2055Z 21OCT19

GEORGIA calling for rc 2200Z with response by MAINSAIL, ground stas or mebbe B2??

And HAWAII with autotuner tones before xmission @ 2243Z.

The above US state named stations were participants of exercise NOBLE SKYWAVE (as opposed to MAJESTIC GROUNDWAVE) involving US mil hf assets.
https://www.ang.af.mil/Media/Article-Display/Article/1701455/airmen-compete-globally-during-exercise-noble-skywave/

This exercise also involves field expediant operations such as making a dipole out of lan line and etc.
Title: Re: 11175 USB
Post by: Josh on October 24, 2019, 2132 UTC
RED RIVER (608th Air Operations Center (AOC) Barksdale AFB LA) calling MIGHTEE 11 (B-52H 2nd BW Barksdale AFB LA) for rc, is answered by MAINSAIL. 2124Z 24OCT19

FISH NET yl with 57 char EAM 2131Z
Title: Re: 11175 USB
Post by: Matt285 on October 25, 2019, 1855 UTC
18:54 Mainsail requesting Hotel radio check, Yankee 316 and SoHo also heard. Solid copy
Title: Re: 11175 USB
Post by: Matt285 on October 27, 2019, 1316 UTC
13:1o 'Associate' 4R4 4R4  N F E E N G into other various letters & Numbers . 13:17 "Associate out'
Title: Re: 11175 USB
Post by: Token on October 27, 2019, 1347 UTC
13:1o 'Associate' 4R4 4R4  N F E E N G into other various letters & Numbers . 13:17 "Associate out'

Are you sure the "4R4" was not "For Romeo Force" instead of "4 Romeo 4"?

T!
Title: Re: 11175 USB
Post by: Matt285 on October 27, 2019, 1400 UTC
It may have very well been. For one reason or another I wrote down 4 Romeo 4. I just turned my receiver back on. It's quiet at the moment.
Title: Re: 11175 USB
Post by: Token on October 27, 2019, 1559 UTC
It may have very well been. For one reason or another I wrote down 4 Romeo 4. I just turned my receiver back on. It's quiet at the moment.

I will have to check my recording, I am pretty sure it will end up being "For Romeo Force".  I don't typically monitor or record the HFGCS freqs, but in the process of recording something else I happened to get that one I think.

T!
Title: Re: 11175 USB
Post by: Matt285 on October 27, 2019, 1608 UTC
When you guys record, is that done via an SDR app? I would like to be able to record Numbers stations due to my schedule.
Title: Re: 11175 USB
Post by: Token on October 27, 2019, 1650 UTC
When you guys record, is that done via an SDR app? I would like to be able to record Numbers stations due to my schedule.

There are many ways to record, a lot of "which is the best way" depends on how you are receiving.  Using a local traditional receiver, using a local SDR, using a remote receiver, etc.

In my case the vast majority of my listening and recording is done using a local SDR, an SDR at my location and locally controlled.  Many of my recordings are done at scheduled times and when I am not at the receiver to start or stop recordings.  So then the question is, do I want to record audio only?  Or do I want to record the I/Q from the SDR so I have more playback versatility?

Most of my SDR recordings are done as I/Q, and using an SDR program.  This is better than simple audio recordings because it allows me to adjust modes and filters on playback.  But the files can get pretty big and bulky.

When I record using remote receivers or local traditional receivers I record just the audio.  Then I do not use an SDR app, but just a standard audio app.  Something like Audacity can be used, or there are radio specific applications like ScannerRecorder (ScanRec).

On the rare occasions I do intentionally record the HF-GCS I typically do it audio only, using a traditional receiver (or receivers), and using ScanRec.  ScanRec allows triggered recordings.  I mean, when nothing is heard it will not record, and when a signal is heard it will start recording.  It also allows stereo recordings, with separate time tags for each channel.  So I can have one receiver, say on 8992 kHz, in the left channel, and another receiver,, say on 11175 kHz, in the right channel.  When a signal in either receiver triggers the squelch the program records both left and right, and time tags (in a text file) the start time and duration of each segment identified by channel.

It works pretty well, assuming the signal you receive is strong enough to break the squelch.  Since I am in a nice location to receive 4724 kHz loudly under a variety of conditions I often use that freq as a master trigger.  And yes, you can get 3 receivers into a 2 channel stereo recording and still ID each receiver in playback.  Whatever is in the left channel is one receiver, whatever is in the right channel is the second receiver, and whatever is in both channels equally is the third receiver.  I prefer to only do 2 channels into a recording, but sometimes you have to do 3 for whatever reason.

T!
Title: Re: 11175 USB
Post by: Token on October 27, 2019, 1706 UTC
OK, checked the recordings, and I am pretty sure it is "for romeo force".

Here is a recording of the start of the transmission:  http://www.tokenradio.net/Radio/SharedFiles/AudTfer/HFGCS_Associate_for_romeo_force_4724_27102019.mp3

And here is the end of the transmission:   http://www.tokenradio.net/Radio/SharedFiles/AudTfer/HFGCS_this_is_associate_out_4724_27102019.mp3

T!
Title: Re: 11175 USB
Post by: Josh on October 27, 2019, 2202 UTC
I live on 11175, it was def ROMEO FORCE.
Title: Re: 11175 USB
Post by: Matt285 on October 27, 2019, 2336 UTC
I had found a web page that showed the locations for the various call signs, but I can't seem to find it now. I know certain ones are not geographically specific, but more so determine if its a ground, ship or air station I believe.
Title: Re: 11175 USB
Post by: Token on October 28, 2019, 0055 UTC
The ones used like this, Romeo, Sierra, Mike, etc, are not going to be ones you can look up.  They are probably assigned for a specific event or evolution, and may mean something completely different the next time you hear it.  This is not like "Skull" or "Red River", callsigns specific platforms or locations use for extended periods.

T!
Title: Re: 11175 USB
Post by: Josh on October 28, 2019, 0133 UTC
HFGCS can be divided into two parts; air assets and ground assets. Everything heard on it will be of those two varieties for the most part, can't count out USN afloat units.

The ground stas service the air assets and these have static callsigns like OFFUT, ANDREWS, LAJES, DIEGO GARCIA etc and we know where these ground stas are, with MAINSAIL being an HFGCS general callsign similar to ANY RADIO. OFFUT of course will be Stratcom HQ in Bellevue Nebraska, aka southside Omaha. The ground stas rarely talk to each other over HFGCS save for rc. Along with their base callsign they will also have random callsigns on a per mission or per interval basis.

The air assets will be anything from battlestaff/ALCS E6 and E4 to bombers to trainers to what have you that the USAF flies. The air assets "entering" and "exiting" the "net" on HFGCS will be of the E4/E6 variety and have rotating calls like SPACE ACE who just requested an unid sta meet him on the CHARLIE ECHO window (9031).
https://en.wikipedia.org/wiki/Airborne_Launch_Control_System#Current_Era

Speaking of USN on hf, USN used to have a lot more traffic in hf USB voice, pretty much their own HFGCS, but they've gone to satcom and hf BRASS (STANAGS4481 and 4285) but can pop up anywhere they please.
https://www.isode.com/whitepapers/brass-to-br1eta.html
Title: Re: 11175 USB
Post by: Josh on November 25, 2019, 2121 UTC
ABDUCTION calls TRAP HOUSE @ 2045Z 25NOV19 and requests they QSL (he meant QSY) to the CHARLIE ECHO window, aka 9031.

On CE window ABDUCTION requests TRAP HOUSE set up for HF Digital, TRAP HOUSE replies there's another flight and cannot comply, TRAP HOUSE directs ABDUCTION to callsign REASSIGN for HF Digital.

ABDUCTION QSYs to triple one and calls REASSIGN with no response heard here.




https://www.urbandictionary.com/define.php?term=traphouse
Title: Re: 11175 USB
Post by: Josh on December 12, 2019, 1632 UTC
Yl with "test test test test" and carriers @ 1631Z 12DEC19
Title: Re: 11175 USB
Post by: Josh on January 02, 2020, 1800 UTC
FISH FACE with test count 1755Z 02JAN19
IRON WORKS checking out of the net in the blind 1802Z 02JAN19
Title: Re: 11175 USB
Post by: Josh on January 05, 2020, 2212 UTC
HFGCS has been mighty quiet last few days, just heard the first emission a few minutes ago after several hours of monitoring.

2215Z 05JAN19
Last caller last caller this is RECKLESS RECKLESS how copy?
Title: Re: 11175 USB
Post by: MattCawby on January 05, 2020, 2329 UTC
HFGCS has been mighty quiet last few days, just heard the first emission a few minutes ago after several hours of monitoring.

2215Z 05JAN19
Last caller last caller this is RECKLESS RECKLESS how copy?

RECKLESS broadcast a 116 character EAM at 2251z on 11175, good signal on the west coast
Title: Re: 11175 USB
Post by: Josh on January 16, 2020, 1953 UTC
BEN HOGAN being checked into the net by EXTRADITE
1953Z 16JAN20
Title: Re: 11175 USB
Post by: Matt285 on January 19, 2020, 1441 UTC
Royal Arc calling Extension for authentication .Alpha Tango Echo, Charlie , Bravo Echo at 144 Zulu
Title: Re: 11175 USB
Post by: Josh on January 19, 2020, 2115 UTC
PIONEER 08 calling MAINSAIL for pp 2105Z 19JAN20
Andrews requests PIONEER 08 qsy to discrete 09120
Pp traffic ensues on 9120
Title: Re: 11175 USB
Post by: Josh on January 21, 2020, 2224 UTC
SPARE RIB with DSN pp via GRAPE VINE for analog and digital mux setup for station FARM BOY, then to PATHOLOGY, then station COOL AIR via RF12 and RF16
2214Z 21JAN20
Title: Re: 11175 USB
Post by: Matt285 on January 22, 2020, 0005 UTC
Seeing some new call signs here I wasn't familiar with.
Title: Re: 11175 USB
Post by: Josh on January 22, 2020, 0022 UTC
Calls like SPARE RIB and the like are going to be per-mission or time based, in this case an E6 tacamo flight, where GRAPE VINE is the ground callsign of the station handling HFGCS comms to/from tacamo flights, perhaps Tinker AFB.

FARM BOY, PATHOLOGY, and COOL AIR are per-mission callsigns for the mux GEP, Ground Entry Points where the tacamo has a full duplex mux system in operation; the tacamo flight sends wideband fm uhf mux dowlink on one freq, the uplinked GEP sends on another freq. As the tacamo orbits, it loses contact with one GEP and switches to the other as it comes within range. These calls may never be used again but who knows.
Title: Re: 11175 USB
Post by: Josh on January 28, 2020, 2209 UTC
ASCENSION in MAINSAIL guise responds to PYTHON 09 who is looking for a pp. ASCENSION requests  PYTHON 09 QSY to 13200 for pp. Both QSY to new QRG and called party isn't answering the phone. 2125Z 28JAN20
Title: Re: 11175 USB
Post by: Matt285 on January 29, 2020, 0022 UTC
I need to start writing down the calls I hear. I always try to check in on 11.175 on a daily basis. The first month or so I thought there were only five calls or so. Now I realize there are so many more. I will try to document better and post my findings.
Title: Re: 11175 USB
Post by: Token on January 29, 2020, 1351 UTC
I need to start writing down the calls I hear. I always try to check in on 11.175 on a daily basis. The first month or so I thought there were only five calls or so. Now I realize there are so many more. I will try to document better and post my findings.

The rotating tactical callsigns (like the stations that send the EAMs and similar traffic) change every 24 hours and are selected randomly form a list.  This means they can repeat, be used again, but sometimes it takes years to get back around to a specific callsign, others never get reselected.  Other callsigns are permanent and follow the unit or the aircraft, things like SCARRY54, the REACH callsigns, etc.

T!
Title: Re: 11175 USB
Post by: Josh on January 29, 2020, 1816 UTC
HAY HOOK calling FOOT HILL via pp for analog and digital on RF1 (UHF Mux) with station TECHNICAL (GEP).
1914Z 29JAN20
Title: Re: 11175 USB
Post by: Beerus Maximus on January 31, 2020, 1609 UTC
11175 // 8992 has been busy this morning with PAID OFF broadcasting multiple EAMs, and then calling TELL TALE (no response) at 1607 UTC. During the EAM, RTTY data appeared right along side the voice audio on both frequencies.. sounds a lot like it is mixed in with the EAM audio itself from the same transmitter.

Another EAM from PAID off began at 1616 UTC, much stronger on both frequencies, and without the RTTY.
Title: Re: 11175 USB
Post by: Josh on January 31, 2020, 2307 UTC
They often have the mixing console set wrong and feed S4481 at times along with EAMs. Also for giggles it was an old (1950s) US Army practice to send voice over fsk, and it worked fine. What I mean is a constant fsk bcast signal was mixed with voice  at the transmitter, the human at the other end just had to put up with the fsk, while the rrty machine ignored the voice traffic and continued to print.
Title: Re: 11175 USB
Post by: Ticom on February 02, 2020, 2245 UTC
Hearing EMPHASIS(?) right now.
Title: Re: 11175 USB
Post by: Josh on February 03, 2020, 0001 UTC
REACH 106 calling LAJES for pp to a dsn #, LAJES requests REACH 106 QSY to 11053 with pp ensuing. 2325Z 02FEB20
Title: Re: 11175 USB
Post by: K3ZRT on February 03, 2020, 0035 UTC
Hearing EMPHASIS(?) right now.

Heard from my location too earlier.

"EQPLLHIFISLOL7RTSR46JJ6FDE3XWQ This is Emphasis out."

Was all I caught by the time I thought "Hey, I should write this down".
Title: Re: 11175 USB
Post by: Ticom on February 06, 2020, 1757 UTC
Two "Union" stations with radio checks just now.
Title: Re: 11175 USB
Post by: Teotwaki on February 06, 2020, 1832 UTC
Ranger Niner-Niner calling Mainsail for radio checks. Ended up getting them direct from Andrews then through West Coast.

Title: Re: 11175 USB
Post by: Ticom on February 07, 2020, 0122 UTC
They often have the mixing console set wrong and feed S4481 at times along with EAMs. Also for giggles it was an old (1950s) US Army practice to send voice over fsk, and it worked fine. What I mean is a constant fsk bcast signal was mixed with voice  at the transmitter, the human at the other end just had to put up with the fsk, while the rrty machine ignored the voice traffic and continued to print.

Doing that on 8992 right now.
Title: Re: 11175 USB
Post by: ZS6AF on February 14, 2020, 1642 UTC
Heard number station on 4724, 8992 , 11175 and 15016khz very stong. Sounded like Iron Mike , ending with THIS IS CHURCHMAN OUT 16H30 UTC .

Icom R8600 and dipoles
KG54km
Nelspruit
ZS6AF
Title: Re: 11175 USB
Post by: Josh on February 14, 2020, 1921 UTC
Heard number station on 4724, 8992 , 11175 and 15016khz very stong. Sounded like Iron Mike , ending with THIS IS CHURCHMAN OUT 16H30 UTC .

Icom R8600 and dipoles
KG54km
Nelspruit
ZS6AF

This will bring you up to speed;
https://en.wikipedia.org/wiki/High_Frequency_Global_Communications_System
Title: Re: 11175 USB
Post by: Josh on February 16, 2020, 0019 UTC
SAM 296 calls MAINSAIL and gets response from WEST COAST for pp to DSN number. WEST COAST requests SAM 296 QSY to 11153 for pp to ANDREWS command post.
0010Z 16FEB20
Title: Re: 11175 USB
Post by: autovon on February 19, 2020, 1328 UTC
TIGER42 calling x3 for HF radio check 1325z.   As usual, no reply.
Title: Re: 11175 USB
Post by: Josh on February 19, 2020, 1900 UTC
TIGER42 calling x3 for HF radio check 1325z.   As usual, no reply.

Odd we can hear everything going on but they can't. Mebbe they're at lunch. Back when USCG had 2 primary hf freqs this went on all the time, could hear some poor rescue helo in the Bering sea calling COMSTA KODIAK with no answer so CAMSLANT relayed comms.
Title: Re: 11175 USB
Post by: Josh on February 28, 2020, 1825 UTC
AXIS 41 (C-130E 43rd OG, Moody AFB GA or EC-130 ABCC Davis Monthan AFB AZ) calling MAINSAIL 1822Z 28FEB20
Title: Re: 11175 USB
Post by: Josh on May 07, 2020, 1908 UTC
Quarterly Exercise SKYMASTER ongoing 1905Z 07MAY20
Title: Re: 11175 USB
Post by: LimaBravo on May 09, 2020, 2126 UTC
lots of comms on 11175 USB back on may 7th
multiple callsigns exchanging comms with skymaster
are any of the callsigns heard coming from nuke subs or nuke silos?
Title: Re: 11175 USB
Post by: Josh on May 10, 2020, 1905 UTC
HFGCS is the main player till it is simulated as having been nuked, then E4s and E6s take over - wich is what they are for, with a boomer (SSBN) having been reported in an exercise in 2017. I suppose one would have to keep track of calls heard and extrapolate from there. They (E4/6s and GEP) were also up on UHF MUX and likely the milstar sat system, milstar or a green laser sat being what I expect subs to use for such comms.

https://en.wikipedia.org/wiki/Milstar
https://en.wikipedia.org/wiki/Advanced_Extremely_High_Frequency
https://www.dote.osd.mil/Portals/97/pub/reports/FY2010/af/2010fabt.pdf?ver=2019-08-22-112948-490
Title: Re: 11175 USB
Post by: LimaBravo on May 16, 2020, 0525 UTC
i was not going to share this here but i have changed my mind. During the skymaster exercise i picked up an EAM on a UHF freq.
the voice sending the message spoke with a french or french Canadian accent which leads me to believe Canada or NATO participated in the exercise. 
Title: Re: 11175 USB
Post by: Josh on May 16, 2020, 1905 UTC
Might have been a Canadian NORAD contingent. Wouldn't surprise me to find more Canadian participation in these exercises, also E6s are possibly working with P8s to a degree, thickening the plot.
Title: Re: 11175 USB
Post by: Rizla on May 16, 2020, 2124 UTC
0216z, RADIATION (?) calling Navy Papa Tango 511, standing by to authenticate Papa Papa Tango. (lots of activity, even some doubling it seems)
Title: Re: 11175 USB
Post by: LimaBravo on May 17, 2020, 0203 UTC
yes - heard “be advised Navy Papa Romeo 511 is in the red” - interesting
Title: Re: 11175 USB
Post by: Teotwaki on May 17, 2020, 1521 UTC
ClayBake and HelpMate with Net activity 15:20Z 17May2020
Title: Re: 11175 USB
Post by: Josh on May 17, 2020, 2152 UTC
yes - heard “be advised Navy Papa Romeo 511 is in the red” - interesting

"In the red" means they're using unencrypted voice as opposed to "going green" ie ANDVT or more modern voice encryption on hf.

https://www.sigidwiki.com/wiki/STANAG_4197
Title: Re: 11175 USB
Post by: LimaBravo on May 22, 2020, 2333 UTC
message of 220 characters on 11175 Khz USB from callsign Night-Cap @ 2051 zulu time today - Friday 5/22
Title: Re: 11175 USB
Post by: LimaBravo on June 21, 2020, 1716 UTC
Callsign ‘Cake Mix’ - “checking into the net in the blind due to time constraint” heard on 11175khz USB @ 1522 Zulu time
Title: Re: 11175 USB
Post by: Teotwaki on June 22, 2020, 1836 UTC
Bank Loan looking to check into a net

Twin Bed responded twice but not heard by Bank Loan

Bank Loan self checks into the net with authentication Tango November at 1833Z

Both signals loud and clear here on my NRD-525 receiver
Title: Re: 11175 USB
Post by: Teotwaki on June 23, 2020, 1723 UTC
Vulcanize has been very active and strong with test counts and comms with other stations (who I could not hear)
Title: Re: 11175 USB
Post by: Josh on June 23, 2020, 1747 UTC
For the newbs;
BANK LOAN would be an E6 TACAMO (USN) or E4 NIGHTWATCH (USAF) checking into the NCA (National Command Authority) net on HF, they will also have a parallel network running on MILSTAR (EHF/laser satellite, use of this sat will be the obvious when the ac is offshore any real distance as some flights venture out off the coasts) and/or ground/air UHF MUX.

TWIN BED would be the current callsign of the corresponding ground comms unit supporting NCA flights via sat, UHF MUX and HF.

Some of these birds can take control of entire missile wings to launch ICBMs if needed, these flights will have to be within UHF range of the wings in question to exert control. Otherwise the flights orbit a loop (to keep that miles long trailing wire VLF antenna as vertical as possible) near a string of GEPs (Ground Entry Points) that have UHF MUX duplex capabilities including a T1 or better innernet line. The flights that venture out over the oceans will be using HF, MILSTAR, and as always VLF to the SSBNs patrolling the world.

:D
Title: Re: 11175 USB
Post by: LimaBravo on June 24, 2020, 0312 UTC
Any idea why the Skyking messages have ceased on HF?
There have been around 3 known Skyking messages for all of this year.
Title: Re: 11175 USB
Post by: canswl on June 24, 2020, 1755 UTC
For the newbs;
BANK LOAN would be an E6 TACAMO (USN) or E4 NIGHTWATCH (USAF) checking into the NCA (National Command Authority) net on HF, they will also have a parallel network running on MILSTAR (EHF/laser satellite, use of this sat will be the obvious when the ac is offshore any real distance as some flights venture out off the coasts) and/or ground/air UHF MUX.

TWIN BED would be the current callsign of the corresponding ground comms unit supporting NCA flights via sat, UHF MUX and HF.

Some of these birds can take control of entire missile wings to launch ICBMs if needed, these flights will have to be within UHF range of the wings in question to exert control. Otherwise the flights orbit a loop (to keep that miles long trailing wire VLF antenna as vertical as possible) near a string of GEPs (Ground Entry Points) that have UHF MUX duplex capabilities including a T1 or better innernet line. The flights that venture out over the oceans will be using HF, MILSTAR, and as always VLF to the SSBNs patrolling the world.

:D
     Josh, do you have a source one can use for identifying the various call signs?  For example, Drysands is heard this morning at 17:00 UTC.   Thanks!    73,  Walt in Victoria, BC
Title: Re: 11175 USB
Post by: Josh on June 26, 2020, 1726 UTC
Any idea why the Skyking messages have ceased on HF?
There have been around 3 known Skyking messages for all of this year.


There have been notedly less skykings of late and that is actually a good thing.
I expect these flights to be done more with unmanned assets than ever before, and those that are manned will likely be kept far enough away from their elint targets to not trigger a reaction from said target. Reason being, the cia guy what planned eliminating that Iranian general in Iraq was allegedly shot down in a elint flight some months ago, I fully expected war over that one but so far little mention, relatively speaking, has been made in the news. If you were monitoring HFGCS when this took place, you might have caught the response to a skyking.

https://www.theguardian.com/world/2020/jan/27/afghanistan-taliban-claim-they-shot-down-us-air-force-plane-crash
Title: Re: 11175 USB
Post by: Josh on June 26, 2020, 1730 UTC
For the newbs;
BANK LOAN would be an E6 TACAMO (USN) or E4 NIGHTWATCH (USAF) checking into the NCA (National Command Authority) net on HF, they will also have a parallel network running on MILSTAR (EHF/laser satellite, use of this sat will be the obvious when the ac is offshore any real distance as some flights venture out off the coasts) and/or ground/air UHF MUX.

TWIN BED would be the current callsign of the corresponding ground comms unit supporting NCA flights via sat, UHF MUX and HF.

Some of these birds can take control of entire missile wings to launch ICBMs if needed, these flights will have to be within UHF range of the wings in question to exert control. Otherwise the flights orbit a loop (to keep that miles long trailing wire VLF antenna as vertical as possible) near a string of GEPs (Ground Entry Points) that have UHF MUX duplex capabilities including a T1 or better innernet line. The flights that venture out over the oceans will be using HF, MILSTAR, and as always VLF to the SSBNs patrolling the world.

:D
     Josh, do you have a source one can use for identifying the various call signs?  For example, Drysands is heard this morning at 17:00 UTC.   Thanks!    73,  Walt in Victoria, BC

The more or less static callsigns can be found here;
http://www.udxf.nl/MCL.pdf

The call DRY SANDS is likely of limited duration, but they can be reused a few months/weeks down the road, seen it before. These calls will typically be used by stations of the TACAMO and NIGHTWATCH programs, ie NCA assets.
Title: Re: 11175 USB
Post by: Teotwaki on August 10, 2020, 0331 UTC
Extension & Yardbird coming in great at 03:31Z 10August2020
Title: Re: 11175 USB
Post by: Rizla on September 11, 2020, 2137 UTC
11175 (s7) and 8995 (s9) PARSONAGE (?) calling various parties, going nuts with EAM's today, many of them five minutes apart, at least 1/2 dozen in the past hour 2030-2130z. Anyone else hearing this? Is there a special event/exercise going on?

Another one just came on as I wrote this.

Edit (2147z): ... and another. Getting that echo-y thing going on both freqs which could be long/short path stuff, this may be  the most EAMs I've heard in an hour (?) They're on every five minutes, same voice and callsign (I don't think I have the callsign right...)
Title: Re: 11175 USB
Post by: autovon on February 10, 2021, 1911 UTC
Heard the Looking Glass callsign used recently.  That was a blast from the past. 
Title: Re: 11175 USB
Post by: ve6jy on February 10, 2021, 2025 UTC
11175 very active today, first alerted when I saw many users on my 3 KIWI's all tuned tuned there! Loud signals up here in Alberta. Many stations, some doubling. I would think any echo here is almost always from multiple locations transmitting, not LP/SP. Not impossible tho.  SkyMaster, Marigold, Stevedore and many others. And I did hear the looking Glass one too.
Title: Re: 11175 USB
Post by: skeezix on February 11, 2021, 1615 UTC
I heard Looking Glass yesterday as well and the Skymaster station responded to him.

Couldn't tell what was going on, but was rather busy, similar to an amateur radio contest at times. I heard two stations ask if this was real world or an exercise. I didn't hear a response the first time and the station responding at the second time was too weak here.  I also heard Icehouse yesterday (in addition to the others already mentioned).

Heard frequent EAMs, with other stations (assuming they were aircraft by their callsigns) calling Skymaster with 4 item messages in between the EAMs and sometimes over the EAMs.

The EAMs were by at least three different callsigns and seemed to be of varying signal strength. The signals on the other HFCGS were different than usual. Usually on normal(?) ones, I get an echo on 11175 and a bit weaker on 15016, and 4724 is very strong with no echo. Yesterday, they were of sufficient strength on 11175, a little weaker on 15016, and completely absent on the other freqs (4724, 8992, and 13200). Clearly using different transmitters that usual.

The aircraft with 4 item messages weren't simulcasting on other freqs, I only heard them on 11175. I wasn't checking the other freqs during quiet times to see if any showed up there, I'd only check when 11175 was active and for parallel activity.
Title: Re: 11175 USB
Post by: Teotwaki on May 11, 2021, 1359 UTC
Interesting traffic going on.

India One Charlie was calling Hickam Global over and over. After a bit he called Yokota who responded. I1C requested a phone patch (couldn't copy the number) and was directed by Yakota to "QSY" to 11,052 KHz USB

I1C is there on the patch right now but it's poor copy compared to 11,175

Patch has finished but I1C requested a number xxx 473-3931  (I think)

Jim
Orange County, CA

13:58Z 11April2021
Title: Re: 11175 USB
Post by: ~SIGINT~ on May 11, 2021, 2309 UTC
I had a similar intercept on 10 May 2021.

18:13 UTC 11175.0 kHz USB
CORDO 14 calling MAINSAIL and requesting a phone patch;
MAINSAIL to CORDO 14, QSY to 11056.0 kHz;
Requested phone patch to commercial [I removed the phone number to keep it private];
18:21Z phone patch complete.

RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada
Title: Re: 11175 USB
Post by: Teotwaki on May 12, 2021, 0105 UTC
I had a similar intercept on 10 May 2021.

18:13 UTC 11175.0 kHz USB
CORDO 14 calling MAINSAIL and requesting a phone patch;
MAINSAIL to CORDO 14, QSY to 11056.0 kHz;
Requested phone patch to commercial [I removed the phone number to keep it private];
18:21Z phone patch complete.

RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada

What I found interesting during my monitoring was the alpha-number-alpha format of the callsigns and I1C's unfamiliarity with how the USAF runs the global HF network. Going from memory, the second phone patch didn't work because the called party refused to talk over the Air Force patch and hung up twice in a row. Next I1C was insisting that Yakota basically take a message about some exercise he was involved in but Yakota kept insisting he was unreadable and please repeat again. I1C went away.
Title: Re: 11175 USB
Post by: Josh on May 26, 2021, 0557 UTC
Some notes on the above posts;

When you hear lots of eams going out there may be something afoot, or in this case the quarterly SKYMASTER exercise as denoted by the callsign intercepted. In contrast to when "Gulf War - The Miniseries" came out in 1991 the eam opening the ceremonies was 130 some characters long.

The LFL (Letter Figure Letter) calls heard on HFGCS such as I1C might be a USN/MARINE CORPS unit, or any number of NATO users as trigrafs are a NATO tactical standard.

As SKYMASTER is a STRATCOM nuclear forces command exercise there are going to be USN players participating so my money's on USN. The USN contingent could be TACAMOs but TACAMOs normally have word callsigns.

Also the CORDO 14 might have been GORDO 14 as GORDO is a well known USAF call going by memory.