We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - R4002

Pages: 1 ... 188 189 190 191 192 193 194 195 [196] 197 198 199 200
2926
Utility / Re: WWV 25000KHZ very loud at this time 1810UTC
« on: November 21, 2015, 1233 UTC »
Whenever WWV on 25.000 (or 25000.0 since HFU is standardized for listing frequencies in kHz :)), always try tuning the 25000 to 30000 (or at least 25000 to 28000 range).  Most "export radios" (sold as "10-meter" radios but easily modified to cover more frequencies, almost always with a set of 40 "CB-like" channels plus a bandswitch and a +10 kHz switch to reach the R/C channels - 26995, 27045, 27095, 27145 and 27195.  Don't be surprised if you hear voice on these frequencies during a band opening) operate on one of several frequency "plans":

The most common one is the 6-band "plan" of 25615-28305 in 6 bands of 40 channels, bands labelled A through F which band D being the legal US FCC CB band.  Other frequency plans include the basic 3-band "uppers and lowers" which is simply 26515-26955 (lowers, or band C), 26965-27405 (CB, mid, or band D), and 27415-27855 (high/uppers, or band E).  You'll notice that the band designation actually carries over from radio to radio.  More modern exports designed for the European market are being sold with "RU mode" - RU for "Russia" with coverage from 25615-30115.  The RCI-29xx series of radios cover 26000-32995.  A variation of the 6-band export is the 12-band one, which can be 24265-29655 or 25165-30555. 

The 11-meter forum here at HFU - http://www.hfunderground.com/board/index.php/board,15.0.html is the place the start with.  Check out some of my log threads over there.  :D

If propagation favors North/South, you'll likely hear activity from Latin America.  The taxi dispatchers will usually start at 25615 AM and go up in 10 kHz steps.  Mexico, Brazil and the Caribbean are usually extremely active.  Start with 26225 USB, then work your way through 26555 LSB to 26565 AM, 26575 AM, 26585 AM, 26705 AM, 26715 AM, 26915 AM and 26955 AM before you hit CB channel 1 (26965).  CB channel 38 LSB (27385 LSB) is another great indicator of band conditions.  Once you get above 40 (27405) and into the "uppers", try 27425 AM/LSB, 27455 USB, 27515 AM/LSB and of course, the International Freeband Calling Frequency - 27555 USB.  Latin America operates its own calling freqs, 26555 LSB, 26705/26715 AM, 27065 AM (CB channel 9), 27455 USB, 27665 USB and 27695 USB/LSB +/- 5 kHz for QRM, especially if 27700 is active with SSTV.

Things can get really interesting if propagation from Europe is open at the same time as Latin America.  There have been several instances where I heard UK FM CB channel 19 - 27781.25 FM clashing with Brazilian stations having a QSO on 27785 LSB.   :o

There's everything from the usual CB operators and freebanders in AM/SSB to Latin American taxicab dispatchers in AM mode (all over the place, sometimes inside 10 meters) to UK FM "27/81" CB (27601.25 to 27991.25 in 10 kHz steps) to SSTV on 27700 USB to Irish and UK Churches (legally, 26965 to 27405 in 10 kHz steps, AM/FM, 27601.25 to 27991.25 in 10 kHz steps, same as the UK FM CB allocation, and 27605 to 27995 AM/FM in the 10 kHz steps - Ireland only).  Most churches use FM mode, although some have been reported using AM mode and some have been reported outside the 26965-27405 and 27600-27995 ranges listed above.

The 25-30 chunk of HF is pretty fascinating stuff - and of course if 10 and 11 meters are active, then that means VHF low band (30 to 50 MHz) could also be open.  I've heard everything from fire departments in the 33020-33980 range to Fort Hood, TX range control on 30450 to Spanish language taxicabs every 10 kHz from 29750 to 35000 and sometimes even higher, all in FM mode.  Apparently there are some taxi companies in Brazil who operate in the 30000 to 33000 region in AM mode using modified CB/11-meter "export" equipment.  

2927
10/11 meters / SSTV 27700 USB 11/20/2015
« on: November 20, 2015, 2138 UTC »
Started hearing several SSTV signals starting at roughly 2120 UTC (still hearing one now at 2139 UTC)

2928
10/11 meters / Re: Church Logs Nov.16
« on: November 16, 2015, 2123 UTC »
You very well could consider that an 11m church broadcast QSL!

Did he mention what sort of equipment his church uses?  I imagine a lot of these churches are running "street legal" 4 watt radios (and some are probably running a lot more than that) but they're using high performance antennas mounted on top of the church.

2929
10/11 meters / 11 meter DX Logs 15 November 2015 1600 UTC +
« on: November 15, 2015, 1633 UTC »
SS - Spanish language.  EE - English language.  Other languages noted.

25000 AM - WWV - S8-S9 signal
25750 AM/FM (???) - carrier heard
25805 AM - SS
25835 AM - EE, possibly truckers (this is Channel 19 "down 3 bands")
25970 FM - Carrier, no audio heard
26225 USB - SS, Dominican Republic and Mexico heard
26485 AM - SS
26555 LSB - SS
26575 AM - SS
26585 AM - SS, OM and YL operators heard
26605 AM - SS, heavy fading, music and roger beeps
26705 AM - SS - Puerto Rico (the usual strong signals for this frequency and 26715
26715 AM - SS, similar to 26705 AM
26855 AM - EE, mobile stations, possibly truckers or hunters
26905 AM - SS, OM and YL dispatcher - likely taxi dispatch (has been heard on this freq before)
26915 AM - EE, Southern USA
26955 AM - EE - "Big Radio 549 Texas" discussing audio quality with another station in South Texas
27025 AM - The Superbowl, usual strong overmodulated signals [CB channel 6]
27065 AM - SS, Puerto Rico.  Latin American AM Calling Frequency [CB channel 9]
27085 AM - EE - US AM Calling Frequency [CB channel 11]
27145 FM - Data Bursts.  Sounds better in FM.  Not a legal CB channel, but referred to as "CB channel 15A"
27185 AM - EE truckers, S5-S9 noise level, several conversations going at once [CB channel 19]
27305 AM - SS, with beeps and other weird sound effects [CB channel 30]
27355 AM - SS [CB channel 35]
27385 LSB - North American SSB Calling Frequency [CB channel 38], with AM carrier QRM in the background
27405 AM - SS, YL - possibly taxi (if it is - this is a terrible frequency choice) [CB channel 40]
27425 LSB - EE, US stations working DX
27435 USB - SS, very strong signals
27455 USB - Latin American 11 Meter Calling Frequency.  Several stations heard, Puerto Rico, Mexico, Dominican Republic
27510 USB - SS
27515 AM - SS Taxicab Dispatcher
27545 USB - French langauge
27555 USB - International 11 Meter Calling Frequency, hearing France, UK, Ireland, Germany, others calling
27640 USB - UK station working unknown station
27675 USB - SS
27690 LSB - SS
27700 USB - SSTV (weak, but there)
27705 LSB - SS
27705 USB - SS
27705 AM - SS, possibly taxi dispatch (QRMing, and being QRMed by, 27700 USB and 27705 USB/LSB)
27725 USB - SS "Hola! Hola! Hola!" with roger beep and OTH Radar QRM

Starting at 2100 UTC:

26135 AM - SS
26385 AM - SS, strong signals.  Mexican accents.  California mentioned
26555 LSB - SS
26570 LSB - SS
26575 AM - SS
26585 AM - SS, not nearly as busy as it was earlier today
26615 AM - SS, with roger beeps/noise toys
26825 AM - SS, YL speaking roger beeps heard.  Likely a taxicab dispatcher
27475 USB - SS
27485 USB - SS, very strong signals
27490 LSB - EE
27495 USB - SS
27605 USB - SS
27665 USB - SS
27745 LSB - SS
27775 AM - SS, weak
27845 AM - SS Taxi Dispatch (presumed)
27875 AM - SS

2930
Hearing "Daddy Won't Sell The Farm" among other country tunes at tune in (1530 UTC).

S8-S9 (with high local QRN noise levels) on my local RX setup.  Bouncing between S7-S9 on the K2SDR NJ WebSDR

YL synth voice "Radio Random International WRRI" repeated 3 times at 1539.

Dead air (or signoff?) following ID. 

2931
10/11 meters / Re: 11m report for 11 Nov 2015
« on: November 11, 2015, 1637 UTC »
Taxi dispatch activity heard so far today (as of 1630 UTC)

26005 AM
26125 AM
26905 AM
26955 AM
27425 AM
27515 AM (with heavy QRM from 27515 LSB)
27815 AM
27855 AM


2932
10/11 meters / Re: 27815 AM Spanish Language YL Dispatcher
« on: November 09, 2015, 1619 UTC »
Conditions seem to be evening out a bit.  I've been monitoring 27555 USB for the past 15-20 minutes and have heard France, England, Ireland, Mexico, Costa Rica, Dominican Republic calling as well I'm sure others that are down in the noise/hit by QRM. 

Flipped over to 27700 for a second and heard the tail end of a SSTV signal too!

2933
10/11 meters / 27815 AM Spanish Language YL Dispatcher
« on: November 09, 2015, 1540 UTC »
This is a new catch for me.  Usually the taxicabs hang around the "lows" (25-26 range) as opposed to the higher parts of 11 meters closer to 28000.  I found this one while tuning around for UK FM activity.

27815 AM.  Signal is anywhere from an S4 (nearly the noise level at this location) to a loud and clear S9.  Hearing the female dispatcher only.

2934
10/11 meters / 11 meter DX 8 November 2015 1600 UTC +
« on: November 08, 2015, 1609 UTC »
All logged with Ranger Voyage VR9000 all-mode export radio (25615-28305 frequency coverage) and 11-meter dipole.


26555 LSB - Latin America SSB DX calling frequency (see also 27455 USB)
26585 AM - Mexican AM chat freq, busy
26845 AM - Carrier, strong (S9).  Could be local.
27455 USB - Latin America SSB DX calling frequency (similar to 27555 USB, only for Spanish language operators)
27465 USB - Spanish language traffic
27500 CW - Dasher beacon of some kind.  One dash every second or so.  Gone at 1605 UTC
27825 AM - Spanish language traffic.  Since this is in AM, I'm guessing its truckers.  Would say taxi if there was  YL dispatcher.

Update starting at 1745 UTC:

26585 AM - Mexican calling frequency.  Not as busy as it was earlier today.
26615 AM - Seems like the guys usually on 26705/26715
26635 AM - Spanish language with "Better Off Alone" by Alice Deejay playing in background.  Rapid fades from S9 down to S3-4
26715 AM - The usual super loud (and sometimes overmodulated) signals from Puerto Rico
27415 AM - Spanish language
27425 AM - Spanish language, with roger beep.  OM talking to other (unreadable) stations.  S3-S4 signal.
27445 LSB - English language.  Southern US accents
27455 USB - Latin America SSB DX calling frequency.  Station in Mexico calling CQ
27535 AM - Spanish speaking OMs talking.  Could be truckers since they're using AM
27555 USB - Hearing beeps.  10AD340 calling CQ requesting QSY to 27600 (said this in Spanish and then English!).
27600 USB - 10AD718 (also IDing as 10AD340 ??) working another Spanish-speaking station in Aruba - other operator corrected him, its actually Curaçao!
27665 USB - Spanish language traffic.  Busy
27675 USB - Spanish language traffic, nice powerful signals.  Operators discussing antennas and their mobile radio setups
27685 USB - Spanish language traffic
27690 USB - Spanish language traffic
27745 AM - Spanish language traffic, getting obliterated by OTH radar QRM
27775 AM - Spanish heard, with roger beeps.  YL and OM.  Possibly taxi dispatch

On a personal note, I have visited Aruba a couple years ago with my VHF/UHF scanning equipment (RadioShack Pro-96) and scanned 25-50 with a VHF rubber duck and heard several very powerful stations in AM and SSB in the 27400-27900 region.  

The very strong signals on 26615 make sense too.  Channel 9 (27065) is listed on Spanish-language 11 meter DXer websites as a AM calling frequency, and 26615 is Channel 9 "down one band".  So I bet they just flicked the bandswitch down from "D" to "C" and continued talking.  

2935
10/11 meters / Re: 11 meter DX 7 November 2015 1700 UTC +
« on: November 08, 2015, 1604 UTC »
You should get yourself a 1/2 wave (or even 1/4 wave) vertical for 11m.  You can do this on the cheap too.  Get a 102" or 108" steel whip, a stud mount and some basic sort of counterpoise system (really a 9 foot piece of wire would work perfectly) and see how your reception changes.  You could easily replicate that with a vertical dipole system.  Your performance on 10/11 will probably get a lot better.  You'd be surprised how some of these mobile antenna systems perform compared to wire antennas, especially when they're higher up. 

2936
10/11 meters / Re: 11 meter DX 7 November 2015 1700 UTC +
« on: November 07, 2015, 2218 UTC »
I've noticed that a good majority of the SSTV images you've gotten recently have callsigns with the "10" prefix (Mexico) on them. 

Do you think that your antenna system might have some directionality to it.  Perhaps north-south? 

2937
10/11 meters / Re: 11 meter DX 7 November 2015 1700 UTC +
« on: November 07, 2015, 1800 UTC »
I use two antennas for fixed operations.  I have a dipole cut for 26.000 and a random wire, roughly 40 feet long.  

I also run various mobile antennas, most of them base loaded whips of various types, as well as a 108" whip.

2938
10/11 meters / Re: 11 meter DX 7 November 2015 1700 UTC +
« on: November 07, 2015, 1738 UTC »
I'm hearing some SSTV on 27700 now as well.  Still no UK FM CB or ROS stuff on 27635 though.  

Propagation seems to be favoring North/South America vs. Europe at this time.  27385 LSB as well as the usual US AMer frequencies (27025, 27085, 27265 and 27285 are all quite active)

Now (1739 UTC) hearing some CW on 27500 too.

1759 UTC:  27635 USB - ROS signals, S9+30 signal strength.  Very very loud for a second there.

2939
10/11 meters / 11 meter DX 7 November 2015 1700 UTC +
« on: November 07, 2015, 1720 UTC »
Logs 1700 to 1720 UTC


26375 AM - SS
26395 AM - SS
26525 AM - SS, OMs and YLs talking
26535 AM - SS with roger beeps
26555 LSB - SS Latin American DX Calling Frequency, active
26585 AM - Mexican AM DX Calling Frequency, very active
26605 AM - Similar to 26585 AM
26625 AM - SS, heavy fading
26635 AM - SS voice and music
26735 AM - EE US Truckers (channel 19 down one band on export radios)
26885 AM - EE Southern US accents
26915 AM - EE Southern US accents, very loud stations.  Heard station with UK accent talking to US stations as well
26925 AM - SS Taxi Dispatch
27435 LSB - EE Midwestern US accents
27450 USB - SS station OP "Ramon" working another, much weaker station
27455 USB - SS Latin American DX Calling Frequency, active
27480 USB - SS
27515 AM - SS, likely taxis
27515 LSB - EE, Jamaican stations working DX
27545 USB - "34 division" working station 10AD089 Mexico City, very strong clear signals
27555 USB - Stations calling CQ DX, English and Spanish
27575 AM - EE "You can switch to LSB and listen to them"
27595 USB - SS, "Hola! Hola! Hola!" and whistling into mic.  Slightly overmodulated, difficult to tune in at first.
27605 AM - EE Southern US (see 27615 AM)
27615 AM - "I went outside and smoked a cigarette there".  Sounds like Southern US operators.  Later QSYed to "605" (27605 AM)
27645 USB - SS
27665 USB - SS
27695 LSB - SS
27765 USB - SS

2940
10/11 meters / Re: 11 meter DX 4 November 2015 1600 UTC +
« on: November 04, 2015, 2048 UTC »
I've heard stations playing music at each other (or just playing music) in the legal CB band (26965-27405) and above and below that frequency range - so its entirely possible you were hearing somebody playing music.  Especially with the propagation being the way it is today you could have heard a CB station retransmitting another station's signal.

Pages: 1 ... 188 189 190 191 192 193 194 195 [196] 197 198 199 200