Messages

1

10/11 meters / 27751 FM 27.75125 MHz FM Irish Church Service 1924 UTC 31 May 2024 [G8JNJ SDR]

« on: May 31, 2024, 1931 UTC »

Listening to CADS / WPAS parish radio broadcast on UK FM CB channel 16, frequency 27751 kHz FM 27751.25 NFM. 

Strong audio, some very minor fades.  SIO 444.  S9 on peaks, mostly hovering around S7-S8. 

At 1925 UTC, you can clearly hear the church background audio, people talking, a sporadic cough...other background chatter.   

Some minor QRM from SSB chatter on 27.745 MHz USB as well some weak SSB chatter on 27.755 MHz LSB.  27.75125 MHz FM is the strongest signal by an order of magnitude though.

Substantial fade down to S5 at 1927 UTC...followed by a nice jump up to S9+10dB for a few moments.  Full quieting FM signal, very good audio especially considering this is 2 or 2.5 kHz deviation! 

CADS / WPAS channel LW16 FM or UK FM CB 27/81 FM CB channel 16. 

Bandwidth at highest FM deviation around 8 kHz or 9 kHz or so.  Can safely call this 10 kHz bandwidth. 

2

10/11 meters / 29.875 MHz FM 29875 kHz FM Fishing Fleet Chatter (Asian) 1225 UTC 31 May 2024

« on: May 31, 2024, 1231 UTC »

Via G8JNJ SDR receiver.  29875 FM [CSQ].  Carrier squelch, no CTCSS (PL) or DCS (DPL) in use.  CSQ. 

Very strong signals, sounds like Japanese language chatter on 29.875MHz.  One of the more active Asian fishery frequencies, 29.875 is Channel 100 on the 480 channel 27.500 MHz - 39.475 MHz [25 kHz steps, sequential channel numbering) radios.  29.825 MHz, 29.900 MHz, 29.925 MHz, 30.025 MHz, 29.775 MHz, 29.750 MHz and many others are also very popular.  29.825 MHz and 29.875 MHz are both in the "top 10" both locally for me here on the East Coast of the USA and via remote receivers located in the UK and mainland Europe.  One of the characteristics of these systems is the use of 25 kHz or 12.5 kHz spacing frequencies and carrier squelch. 

3

10/11 meters / 26-30 MHz Paging Signals Received At Different Times [G8JNJ SDR] 31 May 2024

« on: May 31, 2024, 1117 UTC »

UK based SDR receiver

Logs

Time Frame:  1030 UTC / 1130 local time to 1115 UTC / 1215 local time

26.200 MHz 26200 kHz 26,200 kHz - POCSAG bursts first noted at 1110 UTC
26.350 MHz 26350 kHz 26,350 kHz - POCSAG paging signals, heavy QRM from CODAR, very active as time went on
26.670 MHz 26670 kHz 26.670 kHz - POCSAG paging signals noted around 1050 UTC
26.695 MHz 26695 kHz 26,695 kHz - Busy with POCSAG
26.745 MHz 26745 kHz 26,745 kHz - POCSAG paging signals appearing around 1100 UTC
26.750 MHz 26750 kHz 26,750 kHz - POCSAG paging, narrowband (sporadic)
26.755 MHz 26755 kHz 26,755 kHz - POCSAG signals - sporadic activity
26.800 MHz 26800 kHz 26,800 kHz - Sporadic POCSAG bursts, mostly 6-7 kHz wide BW signals
26.900 MHz 26900 kHz 26,900 kHz - POCSAG pager signals - 26.9 MHz is often very active, first noted around 1055 or 1100 UTC
26.950 MHz 26950 kHz 26,950 kHz - Data bursts, 26.95MHz 26950kHz data link
27.080 MHz 27080 kHz 27,080 kHz - Data bursts, previously noted on this freq 27080kHz, UNID source
27.255 MHz 27255 kHz 27,255 kHz - Data bursts and narrowband POCSAG paging (RCRS frequency in USA, 25w power limit)
27.300 MHz 27300 kHz 27,300 kHz - Pager signals - POCSAG - first noted at 1105 UTC
27.350 MHz 27350 kHz 27,350 kHz - Pager signals POCSAG paging, similar to 27.300 MHz, 27.360 MHz, 26.900 MHz, etc.
27.360 MHz 27360 kHz 27,360 kHz - POCSAG signals, first started fading up after 1110 UTC
27.450 MHz 27450 kHz 27,450 kHz - Data links and paging, first noted at 1115 UTC (weak at that time)
27.505 MHz 27505 kHz 27,505 kHz - Nearly constant paging signals - POCSAG - 12.5 kHz bandwidth, 14-15 kHz bandwidth signals
27.550 MHz 27550 kHz 27,550 kHz - POCSAG paging signals - sporadic activity
27.650 MHz 27650 kHz 27,650 kHz - POCSAG pager bursts, sporadic
27.760 MHz 27760 kHz 27,760 kHz - Data link, approx 10 kHz wide - MFSK signals  (weak at 1115 UTC)
27.845 MHz 27845 kHz 27,845 kHz - POCSAG paging signals, various bandwidth signals - 5-6 kHz, 8-10 kHz bandwidth
27.847 MHz 27847 kHz 27,847 kHz - POCSAG paging signals, offset frequency 27.848MHz 27.8475 MHz
27.850 MHz 27850 kHz 27,850 kHz - POCSAG paging signals, similar to 27.845 MHz


Time Frame:  1400 UTC / 1500 local time to 1430 UTC / 1530 local time

26.220 MHz 26220 kHz 26,220 kHz - Paging signals (narrowband, 5-6 kHz BW) and wide band POCSAG signals
26.300 MHz 26300 kHz 26,300 kHz - Data bursts, some POCSAG and other non-POCSAG signals
26.350 MHz 26350 kHz 26,350 kHz - Sporadic paging noted at 1427 UTC.  FM carrier on frequency underneath paging signals
26.500 MHz 26500 kHz 26,500 kHz - POCSAG pager signals, sporadic signals
26.605 MHz 26605 kHz 26,605 kHz - POCSAG signals, first noted at 1417 UTC - wideband POCSAG noted here
26.615 MHz 26615 kHz 26,615 kHz - Data bursts, weak - some CB radio QRM in FM and AM modes
26.650 MHz 26650 kHz 26,650 kHz - Paging signals, POCSAG (various bandwidths noted) - weak, but there
26.670 MHz 26670 kHz 26,670 kHz - Pager signals - weak, sporadic use
26.705 MHz 26705 kHz 26,705 kHz - Unusual data signals, POCSAG bursts
26.735 MHz 26735 kHz 26,735 kHz - Paging signals noted at 1430 UTC
26.745 MHz 26745 kHz 26,745 kHz - POCSAG signals, signals on top of each other at points
26.755 MHz 26755 kHz 26,755 kHz - POCSAG bursts, sporadic
26.785 MHz 26785 kHz 26,785 kHz - POCSAG bursts, various signal strengths noted (some FM CB radio QRM)
26.815 MHz 26815 kHz 26,815 kHz - POCSAG pager signals, active, similar to 26.900 MHz and 26.835 MHz
26.835 MHz 26835 kHz 26,835 kHz - POCSAG bursts, active frequency (some FM CB radio QRM)
26.885 MHz 26885 kHz 26,885 kHz - Data bursts and POCSAG paging signals (relatively sporadic)
26.900 MHz 26900 kHz 26,900 kHz - Very busy paging frequency, various signal strengths - POCSAG and other modes noted
26.925 MHz 26925 kHz 26,925 kHz - Data bursts, AFSK mode
26.950 MHz 26950 kHz 26,950 kHz - POCSAG paging signals, sometimes getting clobbered by data QRM
26.955 MHz 26955 kHz 26,955 kHz - Data bursts, various types noted
27.195 MHz 27195 kHz 27,195 kHz - Data bursts, MFSK bursts and others
27.255 MHz 27255 kHz 27,255 kHz - Data bursts (possibly RCRS [Part 95C] data links, 25 watt power limit)
27.300 MHz 27300 kHz 27,300 kHz - POCSAG paging signals
27.360 MHz 27360 kHz 27,360 kHz - POCSAG paging signals - well known on this frequency (look and sound identical to 26.900MHz, 27.300 MHz)
27.450 MHz 27450 kHz 27,450 kHz - FM carriers on frequency (idle signal) - data bursts and POCSAG signals
27.475 MHz 27475 kHz 27,475 kHz - Data bursts and narrowband paging signals
27.505 MHz 27505 kHz 27,505 kHz - Still busy with paging signals (POCSAG) and other data signals - various bandwidth
27.845 MHz 27845 kHz 27,845 kHz - Active with POCSAG signals, considerably weaker than earlier today

4

10/11 meters / 27.465 MHz AM 27465 AM Canale 45 "Italian Superbowl" 1030 UTC 30 May 2024

« on: May 30, 2024, 1043 UTC »

Heard via UK based remote SDR receiver - G8JNJ "Flydog SDR".  First tuned in at 1030 UTC (1130 local time to the SDR). 

Lots of Italian language traffic popping up on the 26 MHz/27 MHz CB radio band (11 meter band).  Activity noted on "Channel 45" or Canale 45 - frequency 27.465MHz AM.  AM voice traffic in Italian noted on 27.475 MHz AM as well.

In-band frequencies

26.975 MHz AM - Italian language traffic
27.005 MHz AM - Italian language traffic
27.015 MHz AM - Italian language traffic, CB radio channel 5
27.055 MHz AM - Italian, almost as busy at 27465 AM!
27.275 MHz FM - Italian language comms, some QRM
27.305 MHz FM - Italian CB radio comms - QRM from POCSAG paging signals on 27.300 MHz
27.335 MHz FM - Italian CB chatter

5

Peskies / Re: English language peskies 6.967 usb 22:30 utc nov 06

« on: May 29, 2024, 1438 UTC »

Fishing boats?  Did they have a New England accent? 

Nice catch, 6967 kHz USB could be one of any number of things (or, more than likely, it is free band / out of band operators)

6

Peskies / Re: Peskies 'Whistle Net' 8281.2 USB 2024

« on: May 29, 2024, 1437 UTC »

Interesting frequency choice.  Whistling is pretty popular as a "selective calling" method over HF SSB marine nets. 

8281.2 kHz does fall within the legal 8 MHz marine band allocation 8195 kHz to 8895 kHz 8.195 MHz to 8895 MHz. 

Going by the ITU channel plan / band plan, 8282 kHz is the closest "channel" but those are more like guidelines than rules. 

8282 kHz is part of the ITU dual use (simplex for ship to ship, duplex or "split" operation for ship to shore radio) channel plan, specifically channel 830 frequency 8282kHz USB 8.282 MHz USB (ship transmit) paired with 8806kHz USB 8.806 MHz USB.  For ship to ship purposes, using a single frequency is the common practice, and makes the most sense.

The ITU actually only has a handful of designated simplex frequencies on the MF and HF frequencies:

Most of them are in the 2 MHz and 4 MHz bands.  8MHz band only has 8294 kHz and 8297 kHz, plus numerous frequencies in the shared fixed/mobile allocation 8000 kHz to 8195 kHz sub-band: 8101 kHz to 8191 kHz - much like the 4 MHz simplex frequencies 4000 kHz to 4060 kHz (3 kHz spacing - 4000 kHz USB, 4003 kHz USB, 4006 kHz USB, etc.)

8101 kHz USB
8104 kHz USB
8107 kHz USB
8110 kHz USB
8113 kHz USB
8116 kHz USB
8119 kHz USB
8122 kHz USB
8125 kHz USB
8128 kHz USB
8131 kHz USB
8134 kHz USB
8137 kHz USB
8140 kHz USB
8143 kHz USB
8146 kHz USB
8149 kHz USB
8152 kHz USB
8155 kHz USB
8158 kHz USB
8161 kHz USB
8164 kHz USB
8167 kHz USB
8170 kHz USB
8173 kHz USB
8176 kHz USB
8179 kHz USB
8182 kHz USB
8185 kHz USB
8188 kHz USB
8191 kHz USB

7

Other / Re: ruZZian cringe 6218 USB 2212 UTC 25 MAY 2024

« on: May 29, 2024, 1427 UTC »

These are apparently part of Russian military channel markers (well, a new series of channel markers).  Music (including the Soviet National Anthem, a rock version of the Soviet / Russian National Anthem, various WWII (sorry, I meant The Great Patriotic War) patriotic songs including the famous "Katyusha", sound effects including buzz buzz buzz (think UVB-76 / "The Buzzer" on 4625 kHz), an air raid siren, an alarm, what sounds like a tennis racket or ticking clock or other similar sound, the "pip" and other feeds. 

At various times, the recording loop is cut off and messages are sent.  These signals have been heard by numerous listeners and a large number of them are on YouTube

They've been logged on:

4675 kHz USB
5780 kHz USB
5838 kHz USB
5838.5 kHz USB
6180 kHz USB
6218 kHz USB
6230 kHz USB
6318 kHz USB
6322 kHz USB
6330 kHz USB
6402 kHz USB
6911 kHz USB
6930 kHz USB
7032 kHz USB that's right, more Russians in 40 meters!  7.032 MHz USB 7,032 kHz 7032kHz USB
8001 kHz USB
8514 kHz USB
9001 kHz USB
9041 kHz USB
9310 kHz USB

I'm sure the list above is incomplete.  I'm not including 7050 kHz LSB and 7055 kHz LSB...plus the dozens of other frequencies used by the Russian military.  Yes, 7032 kHz is in USB mode, not LSB mode. 

I can confirm that 6910 kHz USB, 6930 kHz USB, 6218 kHz USB and 6230 kHz USB are active as of 28 May 2024 (listening via a UK based remote SDR receiver). 

8

Peskies / Dutch - Very Active on 6635 kHz LSB - 28 May 2024

« on: May 28, 2024, 1933 UTC »

1930 UTC
28-May-2024
28.05.2024
05/28/2024

Via the G8JNJ SDR online receiver.

Tuning around the 6.6 MHz band, including the 6200 kHz to 6525 kHz marine band and the 6525 kHz to 6765 kHz aeronautical band. 

6640 kHz LSB - French language chatter.  Out of band bootleggers (freebanders) Echo Charlie EC 6.6MHz pirates 45 meter band 45m 45 metros band 6,6 MHz band.  6635 kHz busy with Dutch language comms.  Apparently 6635 LSB is also popular with fishing fleets out of the Nordic countries.

6660 kHz USB has very distorted music at 1932 UTC.  Presumably also Echo Charlie / 6.6 MHz freeband ops

9

Peskies / 6980 kHz LSB - Italian Comms 6.980 MHz LSB 1925 UTC 28 May 2024 [G8JNJ SDR]

« on: May 28, 2024, 1927 UTC »

Received via the G8JNJ SDR on the SW UK coast.

6980 kHz LSB, 6985 kHz LSB and several others.  Noting a "buzzer-like" signal on 6978 kHz USB or 6979 kHz USB mixing with the voice comms on lower side band.

Lots of Italian comms on this frequency, especially 6980kHz USB.  6.980 MHz 6,980 MHz USB Italian comms pescadores or freeband or out of band guys.  The 45 meter band is very busy in Europe - 6.6 MHz band or Echo Charlie pirates.

Good signals, originally tuned in around 1900 UTC...they're going strong nearly 30 minutes later.

10

Peskies / Irish Fishing Boats? 3333 kHz USB 1922 UTC 28 May 2024 [G8JNJ SDR]

« on: May 28, 2024, 1924 UTC »

Two or three stations having very informal QSO about engine problems, talking about making food at 1923 UTC.

Tuned in via the G8JNJ SDR, location: Southwest UK. 

Lots of UNID two-way comms all over MF/HF.  Could be groundwave, or close to it...given the frequency in use, time of day and season.  SIO 444 on the best signal. 

3333 kHz USB
3.333 MHz 3,333 kHz 3,333.0 3.333.0 MHz USB 3333kHz USB

11

VHF/UHF Logs, including satellites and radiosondes / EPAR - 31 MHz Band Street Lighting Control / Telemetry Link (France) VHF Low DX

« on: May 24, 2024, 1646 UTC »

Listening via the G8JNJ SDR receivers.

Polytone data transmissions, sound similar to ROS digital mode.  31 MHz band.

31.325 MHz
31.3875 MHz
31.4375 MHz
31.4625 MHz
31.475 MHz
31.6875 MHz
31.725 MHz
31.925 MHz
31.975 MHz

Seems like there are probably other frequencies in use, but these ones are confirmed via that particular receiver.  I've heard the following locally (in Richmond VA)

31.325 MHz
31.6875 MHz
31.975 MHz

31.6875 MHz comes in fine on 31.685 MHz or 31.69 MHz in NFM mode. 

31.725 MHz, 31.750 MHz and 31.775 MHz are also used for on-site hospital paging in the UK.  31.320 MHz is used for POCSAG paging as well, source is unknown.

12

10/11 meters / 26-28 MHz Paging Systems Activity Log 24 May 2024

« on: May 24, 2024, 1555 UTC »

Tune in time: 1530 UTC

G8JNJ Wessex, UK SDR.

26.200 MHz 26200 kHz - POCSAG paging signals, various signal strengths
26.220 MHz 26220 kHz - Paging signals - wideband, narrowband and very wide (16 kHz - 18 kHz BW) POCSAG
26.250 MHz 26250 kHz - POCSAG paging, FM carrier on frequency during "idle" time
26.350 MHz 26350 kHz - POCSAG paging, various strengths...also a weak FM carrier on frequency
26.500 MHz 26500 kHz - POCSAG paging, FM carrier on frequency during "idle" time
26.545 MHz 26545 kHz - POCSAG paging signals, intermittent activity
26.550 MHz 26550 kHz - POCSAG signals, narrow and wide band
26.600 MHz 26600 kHz - Very active pagers on this frequency 26.6 MHz 26.6MHz 26,600 kHz POCSAG
26.605 MHz 26605 kHz - Paging signals, narrowband POCSAG, sporadic signals, wideband POCSAG noted at 1538 UTC
26.630 MHz 26630 kHz - Wideband POCSAG paging signals, some SIO 555 very strong
26.645 MHz 26645 kHz - POCSAG signals, including 14-15 kHz wide signals
26.650 MHz 26650 kHz - Paging signals noted, roughly as frequent as 26.600 MHz or 26.900 MHz
26.655 MHz 26655 kHz - Sporadic paging signals on 26.655MHz
26.695 MHz 26695 kHz - POCSAG paging signals, numerous signals mixing together, constant activity
26.695 MHz 26695 kHz - POCSAG paging signals - narrowband signals
26.700 MHz 26700 kHz - Paging signals - POCSAG, intermittent use
26.705 MHz 26705 kHz - POCSAG signals - noted once every 30-40 seconds, narrow and wide POCSAG
26.735 MHz 26735 kHz - Wide and narrow POCSAG pager signals
26.745 MHz 26745 kHz - Non stop paging signals, just like 26.695 MHz, S9 + peak signal strength
26.750 MHz 26750 kHz - POCSAG paging and narrowband non-POCSAG signals (6 kHz bandwidth narrow)
26.750 MHz 26750 kHz - FM carrier on frequency during "idle" non-paging periods (very heavy QRM)
26.755 MHz 26755 kHz - Paging signals, pretty frequent use, but not nonstop like 26,695 and 26,745
26.785 MHz 26785 kHz - POCSAG - various bandwidths and signal strengths noted
26.800 MHz 26800 kHz - POCSAG pager signals, very busy at points
26.815 MHz 26815 kHz - Pager signals mixing with weak FM voice on frequency, nonstop signals just like 26.695MHz and 26.745MHz
26.835 MHz 26835 kHz - POCSAG - various bandwidths and signal strengths noted
26.850 MHz 26850 kHz - Sporadic POCSAG signals noted
26.885 MHz 26885 kHz - Sporadic POCSAG, extremely strong wide band paging signal 18 kHz BW!!
26.900 MHz 26900 kHz - Very strong POCSAG on frequency
26.950 MHz 26950 kHz - Narrowband POCSAG signals, other data link signals noted
27.300 MHz 27300 kHz - POCSAG paging signals basically nonstop on this frequency
27.350 MHz 27350 kHz - Narrow band POCSAG noted 27,350kHz 27.35 MHz
27.360 MHz 27360 kHz - Sporadic POCSAG paging signals, heavy CB radio QRM 27.355 MHz and 27.365 MHz
27.425 MHz 27425 kHz - POCSAG signals noted at 1546 UTC and 1547 UTC
27.450 MHz 27450 kHz - FM carrier during idle periods, POCSAG paging and other data also on frequency
27.475 MHz 27475 kHz - Narrowband paging signals - 6-7 kHz wide BW, fair to weak signals
27.500 MHz 27500 kHz - POCSAG, 12-13 kHz wide signals, very similar to 27.505 MHz signals
27.505 MHz 27505 kHz - POCSAG pager signals on frequency, center frequency varies, 27.504 MHz, 27.5055 MHz, 27.506 MHz..
27.510 MHz 27510 kHz - 20 kHz wide POCSAG signals noted, also narrowband 6-8 kHz wide signals on frequency
27.550 MHz 27550 kHz - POCSAG signals, no doubt causing havoc on 27.555 MHz USB
27.650 MHz 27650 kHz - POCSAG paging signals, similar to those noted on 26 MHz band
27.750 MHz 27750 kHz - POCSAG noted, idle FM carrier when no paging signal being sent
27.760 MHz 27760 kHz - Data link frequency, roughly 10-12 kHz bandwidth - paging signals also noted on frequency
27.845 MHz 27845 kHz - POCSAG signals, similar to 27.850 MHz (offset frequency)
27.848 MHz 27848 kHz - POCSAG pager signals, offset frequencies 27.847 MHz, 27.848 MHz, similar to 27.505 MHz signals
27.850 MHz 27850 kHz - See 27.845MHz and the offset 27.847 MHz 27.8475 MHz signals
27.900 MHz 27900 kHz - Sporadic data signals, narrowband POCSAG also noted

29.750 MHz 29750 kHz - Sporadic POCSAG paging signals, 29.8 and 29.9 MHz are well-known, 29.75 MHz is a new one (I think)
29.800 MHz 29800 kHz - Pager frequency, active with various bandwidth POCSAG pager signals 29,8 29,800 kHz
29.900 MHz 29900 kHz - POCSAG paging active, wide and narrow band signals 29,900 kHz 29.9MHz

13

10/11 meters / Re: UNID 26500 FM 1707 UTC MAY 18 2024

« on: May 24, 2024, 1524 UTC »

Nice catch, the use of FM for land mobile comms by most of the Latin American LMR users is uncommon...at least below 30 MHz. 

Usually its AM mode, and 26.5 MHz 26.500 MHz is an interesting frequency choice too.  26.500 MHz FM vs. say 26.495 MHz AM or 26.505 MHz AM. 

14

10/11 meters / BBC 25700 kHz AM 25.700 MHz AM 1400 UTC 05/24/24

« on: May 24, 2024, 1404 UTC »

Listening to the 25-30 MHz band via several UK based receivers.  Very strong SIO 555 signal on 25.7 MHz AM 25700 kHz AM 25,700 kHz AM with a BBC voice loop "This is the BBC, there are no programs on this frequency at this time" prior to the top of the hour.

Nice to see some 11 meter broadcasting going on still.  25800 kHz 25.8 MHz 25.800 MHz is well-known, 25700 kHz is an interesting one (yes, it is still a legal 11m BC frequency) - 25.6 MHz to 26.1 MHz (or thereabouts).  The 25600 kHz to 26100 kHz band overlaps with land mobile users, 25 MHz / 26 MHz marine allocation and of course the STL / IFB (cue) transmitters used in the U.S. under Part 74 of the FCC rules - 25.870 MHz to 26.470 MHz 25870 kHz to 26470 kHz (20 kHz steps, FM mode). 

15

10/11 meters / Re: KSL REMOTE FEED 26.190000 FM 1314 utc May 05 2024

« on: May 14, 2024, 1811 UTC »

No  PL tone / CTCSS tone
recorded

Makes sense, carrier squelch it is! 

26.190 MHz FM [CSQ] PL=none KSL remote STL 26.19MHz 26190 FM 26,190 kHz FM