Messages

2086

10/11 meters / Re: Paging System Pager CB Channel 23 27.255 MHz 27255 kHz FM 5 August 2017

« on: August 07, 2017, 1546 UTC »

I compiled a list of European 26 MHz paging and 27 MHz paging frequencies for the 11 meter band in this thread [https://www.hfunderground.com/board/index.php/topic,35331.0.html]

26 MHz paging 26MHz pager 27 MHz paging 27MHz pager 27MHz data link 27.255 MHz 27255 kHz 27.255MHz

After several days of browsing through European based remote SDR receivers, I've noticed heavy use of the 11 meter band for paging activities (among other digital modes).  All have been using POCSAG.  The UK frequencies are often quite active, as is 27.300 MHz (although I can't figure out where this one comes from).  The 27.600 MHz one is based somewhere in Northern Europe and is extremely strong, often pushing past S9+30db signal strength. 

The Europeans seem to be a lot more fond of both the FM voice mode and using 11 meters for digital modes and local paging. 


26200 kHz / 26.200 MHz - UK Hospital Pager POCSAG
26225 kHz / 26.225 MHz - UK Hospital Pager POCSAG
26250 kHz / 26.250 MHz - UK Hospital Pager POCSAG
26300 kHz / 26.300 MHz - UK Hospital Pager POCSAG
26350 kHz / 26.350 MHz - UK Hospital Pager POCSAG
26715 kHz / 26.715 MHz - UK Paging POCSAG
26745 kHz / 26.745 MHz - UK Paging POCSAG
26750 kHz / 26.750 MHz - UK Paging POCSAG
26755 kHz / 26.755 MHz - UK Paging POCSAG
26785 kHz / 27.785 MHz - UK Paging POCSAG
26835 kHz / 26.835 MHz - POCSAG - unknown origin pager (heard sporadically in UK)
26900 kHz / 26.900 MHz - POCSAG - unknown origin (heard daily in UK, very strong signals)
26945 kHz / 26.945 MHz - Local Paging or On Site Pager 26 MHz band [heard in mainland Europe]
26950 kHz / 26.950 MHz - Local Paging or On Site Pager 26 MHz band
26955 kHz / 26.955 MHz - Local Paging or On Site Pager 26 MHz band [heard in The Netherlands]
27300 kHz / 27.300 MHz - POCSAG Paging (heard daily in UK)
27350 kHz / 27.350 MHz - POCSAG Paging (heard sporadically in UK - unknown origin)
27360 kHz / 27.360 MHz - POCSAG Paging (heard sporadically in UK - unknown origin)
27450 kHz / 27.450 MHz - POCSAG Paging - this frequency seems to be used for basically everything
27550 kHz / 27.550 MHz - POCSAG Paging (with obvious QRM from 27555 USB)
27600 kHz / 27.600 MHz - POCSAG Paging (heard daily in Netherlands)
27650 kHz / 27.650 MHz - POCSAG Paging (heard daily in Netherlands)
27700 kHz / 27.700 MHz - POCSAG Paging (heard daily in Netherlands)
27750 kHz / 27.750 MHz - POCSAG Paging (heard daily in Netherlands)

2087

10/11 meters / Paging System Pager CB Channel 23 27.255 MHz 27255 kHz FM 5 August 2017

« on: August 05, 2017, 1851 UTC »

Checking out some remote SDR receivers for activity on 11 meters elsewhere in the USA.  Currently listening to 27.255 MHz CB channel 23 on a remote SDR in Ohio and am noticing a data link or possibly pager transmitter right on frequency.  It will transmit an unmodulated carrier for about 1 second, followed by two data bursts about 0.5 seconds apart while "idling" - and when its busy its a series of data bursts.  Reminds me of POCSAG.  I know this frequency is one of the six available in the 26-27 MHz band under FCC rules Part 95 for data transmission.  While the other five frequencies have a maximum carrier power of 4 watts, 27.255 MHz has a maximum carrier power of 25 watts, which means you can do a lot more with it as far as on-site paging systems go. 

As my other logs will show, there is heavy use of the 11 meter band for paging systems, on-site pagers for hospitals, etc and for data link systems.  I know if one data link system that is sold that uses 27.255 MHz and FSK modulation.  I'm hearing bits and pieces of a CB QSO in AM mode underneath the data bursts but it is by far the primary user of this frequency even though band is open and basically every channel is in use.

2088

10/11 meters / Truckers outside CB band 27.435 MHz AM 27435 kHz AM 5 Aug 2017

« on: August 05, 2017, 1822 UTC »

5 AUGUST 2017

27.435 MHz, AM mode.  Starting at 1815 UTC.  Hearing two truck drivers talking out of band on 27435 AM, decent signals with some minor fading.  Talking about taking routes around a city, can't seem to figure out which one it is but they're almost certainly truckers and not freebanders. 

2089

10/11 meters / Music on 27575 kHz AM 27.575 MHz AM 5 August 2017

« on: August 05, 2017, 1814 UTC »

Starting around 1330 UTC and going until just after 1345 UTC, some fading. 

Lots of stations from the Midwestern USA and Canada coming in today on basically every legal CB channel, lots of SSB activity noted on 27.385 MHz LSB and 27.395 MHz LSB (CB channels 38 LSB and 39 LSB) as well as

26865 kHz AM - 26.865 MHz AM
26905 kHz AM - 26.905 MHz AM - two QSOs going on at the same time, Midwestern accents heard
26915 kHz AM - 26.915 MHz AM
26925 kHz AM - 26.925 MHz AM
26945 kHz AM - 26.945 MHz AM - Canadian stations having a QSO, sounded like they were locals who knew each other personally
27425 kHz LSB - 27.425 MHz LSB
27440 kHz LSB - 27.440 MHz LSB
27460 kHz LSB - 27.460 MHz LSB
27470 kHz LSB - 27.470 MHz LSB
27475 kHz LSB - 27.475 MHz LSB
27555 kHz USB - 27.555 MHz USB

2090

Utility / Re: French Military CW Training Net 6825 kHz 1710+ UTC 28 July 2017

« on: August 02, 2017, 0133 UTC »

My presumption  is that it's coming from France but it's entirely possible it's coming from an overseas French department / location or a mobile source. Did you end up hearing them on 6825 kHz / 6.825 MHz on your side of the globe?

2091

Peskies / UNID Spanish Language 6960 kHz LSB 0000 UTC 1 August 2017

« on: August 01, 2017, 0018 UTC »

Spanish speaking freebanders freeband net 43 meters 6960 kHz LSB 6.960 MHz LSB - casual ham radio like QSO, operators exchanging signal reports and talking about equipment after one station called CQ. 

6960 kHz LSB - 6.960 MHz LSB 0000 UTC - on-going August 1st, 2017.

The band is full of two-way traffic right now, and over the past or so I've heard several usually clear frequencies active with land mobile or marine mobile communications.  Chances are the station I'm hearing on 6960 kHz LSB is land-based though.  Reminds of the guys heard on 6900 LSB - Spanish speaking traffic, freebanders.

Station calling CQ, the usual "hola hola hola!"  At 0013 UTC - 0014 UTC, another station replied to him and gave him a signal report.  Since these communications sound more like amateur radio operators operating out of band or freebanders aka outbanders, chances are they are land-based operators.  QSO continuing between two stations at 0015 UTC.  Spanish language, nice audio and easy copy at 0015 UTC.  Mention of Raul and Carlos at 0017, discussion of operators speaking Spanish vs. other languages (presuming he's comparing the amount of traffic in Portuguese or English vs. in Spanish).  Did not get a 100% copy on which operator is which name.  "No English, please" (in Spanish) heard at 0017 UTC.  Further discussion of radio operating conditions, then specific address to "Manuel" at 0018 UTC.

2092

Peskies / UNID Spanish Language 6880 kHz USB 0000+ UTC 1 August 2017

« on: August 01, 2017, 0012 UTC »

Hearing some weak Spanish language QSO going on on 6880 kHz USB, or 6.880 MHz USB.  Possibly a Portuguese peskie underneath them, or nearby in frequency.  Strange conditions this evening. 

2093

Peskies / UNID English Language 6927.8 kHz LSB then 6927.8 kHz USB 2330+ UTC 31 July 2017

« on: July 31, 2017, 2352 UTC »

Note: The QSO in question started at 6927.8 kHz LSB, then switched to 6927.8 kHz USB at 2354 UTC due to ute data burst QRM on 6927.8 LSB.

Heavily accented English speaking traffic 6927.8 kHz LSB or 6.927.8 MHz LSB or 6.9278 MHz LSB.  Initially thought these guys were on 6928 kHz LSB and were speaking some weird language I had never heard before.  Then I recognized "her" "ya mon" and a handful of English language curse words.  

Another interesting frequency choice for these guys.  The language is hard to pin down.  EDIT: It's English, just really heavily accented.  Sounds Jamaican or maybe another Caribbean or islander in origin.  At first I thought I was off-frequency when I tuned to 6928 kHz LSB, but it seems like one of the stations is on 6927.7 kHz and the other is on 6927.8 kHz or maybe 6927.75 kHz.  There.  6927.8 kHz USB sounds best.  

Lots of curse words and "ya mon" heard.  Very active conversation.  One station heard yawning on the air.  Not sure if these are freebanders or another fishing fleet net.  Still going strong at 2349 UTC.  Sounds like these guys know each other.  Reminds me of the traffic sometimes heard on 27515 LSB when the 11 meter band is open to the Caribbean area.  Some minor ute data link burst QRM at 2350 UTC.  Significant fading noted right after this, they're now down to the same level as the Portuguese speaking pescadores.  

EDIT:  Frequency is 6927.8 kHz.  I've removed the 6927.7 kHz from the thread title.  Reference to "Christian" at 2352 UTC.  Possibly another station or another guy these operators know?  Possibly a mixture of English and West African or Caribbean slang terms.   At 2354 UTC, they switched from 6927.8 kHz LSB to 6927.8 kHz USB...maybe to escape from the data QRM from whatever utility station occupies 6925 kHz USB and 6926 kHz USB from time to time.  QSO going strong on 6927.8 USB at 2355 UTC.  

0003 UTC:  Still going strong, several mentions of "fuckin' boy" around this time
0008 UTC:  "son of a bitch" - these guys are doing all the words you can't say on the radio  lots of laughing, very informal

2094

Peskies / UNID Portuguese Language 6955 kHz USB 2330+ UTC 31 July 2017

« on: July 31, 2017, 2343 UTC »

At first it seemed like somebody was tuning up on frequency, but then two-way traffic in SSB mode was noticed.  Usually 6955 kHz USB is used by pirates but these are almost certainly fishing fleets using HF-SSB radios modified for open band transmit (freeband frequency modification, or MARS/CAP mod - the radios are likely re-purposed amateur equipment given the heavy use of LSB mode).

6955 kHz USB - 6.955 MHz USB Portuguese language chatter fishing fleets peskies on a commonly used pirate radio frequency

2095

Peskies / UNID Portuguese Language 6881 kHz USB 2300+ UTC 31 July 2017

« on: July 31, 2017, 2314 UTC »

More fishing fleet HF-SSB fishery radio HF communications Portuguese language on the 6-7 MHz area, specifically the 6765-7000 kHz range or "43 meters", often found in the 6800-7000 kHz or the 6900-7000 kHz pirate radio band for North America.

Weak two-way marine mobile radio communications chatter 6881 kHz USB or 6.881 MHz USB.  July 31st, 2017, starting at approx 2300 UTC and likely going past the 0000 UTC mark into August 2017.   

Lots of Portuguese chatter on the band tonight, have not come across any Spanish language stuff, like the freebanders usually heard on 6900 kHz 6.900 MHz and the like.  The Portuguese speaking fishing fleets seem to use random frequency steps and switch between USB and LSB mode at random, whereas the Spanish speaking freebanders or outbanders (bootleggers) seem to use 5 kHz steps and operate in a manner that is closer to amateur radio operators or freeband 11 meter CB operating style.  It's a lot easier to listen to the Spanish stuff!

2096

Peskies / UNID Portuguese Language 6868.6 kHz LSB 2300+ UTC 31 July 2017

« on: July 31, 2017, 2310 UTC »

Portuguese speaking fishing fleets on frequency 6868.6 kHz LSB or 6.868.6 MHz LSB (or 6.8686 MHz LSB).  Another "cute" or easy to remember frequency 6-8-6-8-6 on your radio's display! 

More weak Portuguese pescadore fishermen fishing fleet fishing boat fisheries communications chatter heard starting around 2300 UTC.  Several stations talking on top of each other with lots of static crashes typical of this time of the year.

2097

Peskies / UNID Portuguese Language 6951 kHz LSB 2300+ UTC 31 July 2017

« on: July 31, 2017, 2307 UTC »

Date:  31-JUL-2017
Time:  2300 UTC +++
Frequency:  6951 kHz 6.951 MHz
Mode: LSB
Language: Portuguese

Likely fishing fleet communications net 6-7 MHz band 6951 kHz LSB.

Hearing very faint Portuguese language two-way chatter - classic pescadores - fishing fleet radio nets or peskies on 6951 kHz LSB started hearing them around 2300 UTC on July 31 2017. 

2098

Peskies / UNID Unknown Language 6795 kHz USB 0100+ UTC 31 July 2017

« on: July 31, 2017, 0101 UTC »

6.795 MHz USB - 6795 kHz USB pescadores???

I think this is Portuguese, two (or more) stations chatting away on 6795 kHz USB.  One of them seems to be closer to 6795.1 kHz. 

2099

Peskies / 6970 kHz LSB Spanish Language Radio Check 0000+ UTC 31 July 2017

« on: July 31, 2017, 0046 UTC »

Spanish speaking freebanders outbander net radio check 6970 kHz 6.970 MHz LSB 1 2 3 4 5 radio check holaaa

Still going strong at 0040 UTC. 

Hearing a single Spanish speaking OM reading numbers (counting 1,2,3,4,5 etc) on 6970 kHz LSB.  Seems to be doing radio checks and the usual "hola!" "hooolllaaaaaa" and whistling into microphone freeband CB style comms usually heard on 6900 kHz and similar frequencies.  Only difference tonight is this guy is extremely strong, peaking at S9+20db...and he doesn't seem to be talking to anybody (that I can hear anyway).

At 0045 UTC, another station responded to him...not sure if he can hear the guy or not as he is continuing to do the "1 2 3 4 holaaa" radio checks.

2100

North American Shortwave Pirate / Re: UNID 6850 AM 2204 UTC 30 Jul 2017

« on: July 30, 2017, 2224 UTC »

Electronic dance music with narrowband AM mode sounding the best.  9-10 kHz passband is a lot noiser.  Barely a carrier locally, but sounding quite nice on the Rochester, NY remote web SDR / KiwiSDR. 

6850.5 kHz frequency mode AM UNID electronic music / techno at 2224 UTC