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Topics - R4002

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31
10/11 meters / UK Pagers (RX on U.S. East Coast) 26 MHz Band + UK FM CB 1630 UTC 27 Jan 2025
« on: January 27, 2025, 1639 UTC »
Received via W3HFU SDR and local receivers. 

Hearing the tell-tale nonstop paging signals on 26.695 MHz, 26.745 MHz and sporadic POCSAG or sounds like POCSAG paging signals on 26.635 MHz as well.

26635 kHz - Paging
26695 kHz - Paging - UK hospital pagers, also mainland Europe paging systems (see also: 26.700 MHz, 26.705 MHz)
26745 kHz - Paging - UK hospital pagers, also mainland European paging systems - 26.700 MHz, 26.705 MHz

At around 1633 UTC or 1634 UTC, I started noticing voice comms mixing in with the paging signals on 26.635MHz.  AM mode...followed by an AM signal - carrier frequency 26635.4 or so, AM signal modulated with ~ 1000 or 1100 Hz tones (so it appears as three carriers, one on 26635.4 kHz, another one 26634.4 kHz and another on 26636.5 kHz). 

Unsure if this is an unrelated data link system or part of a paging system operating on 26.635 MHz that just happens to be a little off-frequency.

The AM voice traffic on 26.635 MHz sounded like Mexican taxi cab comms, which makes sense.


At 1639 UTC, hearing U.S. domestic freeband 11 meter operators on 26.745 MHz LSB, which is unique.

32
10/11 meters / 26.765 MHz AM Mexican Taxi Cab Dispatcher 1755 UTC 24 Jan 2025
« on: January 24, 2025, 1759 UTC »
Mexico City taxi dispatcher (probably) CDMX taxi dispatch radio network.  26.7650 MHz AM 26765 kHz AM mode.  YL dispatcher, with single-tone end of transmission burst.

At 1755 UTC the dispatcher's signal is very close to being right on frequency 26765.00 kHz.  Carrier offset is very minimal, 26765.040 kHz, very good. 

Taxi cab radios themselves, OM drivers replying to the dispatcher...frequency drift is a bit more noticeable but not at all a problem for a land mobile radio system. 

Mobiles:

26765.1 kHz
26765.2 kHz
26764.9 kHz
26765.8 kHz
26764.4 kHz
26765.5 kHz
26765.3 kHz

Pretty active frequency, taxis are very weak right now, but the dispatcher's signals are very readable.  Good band opening indicator.  26765 kHz AM.

33
10/11 meters / UK Hospital Pagers 26.695 MHz and 26.745 MHz 1750 UTC 24 January 2025
« on: January 24, 2025, 1752 UTC »
Receiving nearly non stop POCSAG and sounds like POCSAG (could be CCIR multi-tone paging) pager signals on 26.695 MHz and 26.745 MHz at 12:50 PM U.S. Eastern Time, 1750 UTC 1750z.  26695 kHz and 26745 kHz.

Signal strengths all over the place, from just above the noise floor to S-7.  Receiving locally in Richmond Virginia and via online SDR receivers on the East Coast - including the N1NTE SDR and the W3HFU receiver.


34
10/11 meters / 29.7588 MHz USB Spanish Language Comms UNID 1958 UTC 10 Dec 2024
« on: December 10, 2024, 2002 UTC »
Frequency may be closer to 29758.8 kHz, 29.7588 MHz USB produces the best results.  Two stations, informal QSO, seems like one OM and one YL, possibly freebanders just using a super secret squirrel frequency.

FSK signal right on 29.760 MHz is making copying the QSO extremely difficult.

QSO continuing at 2000 UTC.  Listening via the W3HFU SDR (900 foot sky loop).  The band is open to Latin America.  FSK signals likely from waverider buoys. 

35
10/11 meters / 27.70125 MHz FM On-Off Keying? W3HFU SDR (900 ft sky loop) 1937 UTC 10 Dec 2024
« on: December 10, 2024, 1941 UTC »
27701.25 kHz FM.  Right on frequency.  Transmission duration variable, from around 1 second, to 2-3 seconds, to 8-10 seconds.  No modulation noted, given the frequency choice, which is UK FM CB radio channel 11, I'd say somebody is checking SWR or otherwise testing.  No SSTV signals noted at the moment, but when the band is hopping, the 27.700 MHz USB SSTV traffic often "beats" UK FM signals on 27.701 FM, add some SSB QRM and taxi cab dispatchers on 27.705 MHz AM and you've got a winner.

At 1939 UTC, Spanish language comms on 27.705 MHz LSB noted, followed a few moments later by some weak SSTV (transmission started in the last 10 seconds or so of 1939 UTC, going strong at 1940 UTC.

27.710 MHz LSB is also going nonstop with single side band voice chatter, Spanish language, likely South American.

36
10/11 meters / 27.295 MHz FM CB Channel 29 FM German FM CB 1300 UTC 6 December 2024
« on: December 06, 2024, 1307 UTC »
Received locally, very dramatic fading, German language comms on CB channel 29 in FM mode.  Not much AM voice activity on the frequency.  Checked the W3HFU SDR (120 ft T2FD antenna) and it is there as well, some FM activity also noted on 27.315 MHz CB channel 31.

Some faint signals on the UK FM CB channels, noting signals starting to fade in on 27.78125 MHz FM, 27.66125 MHz FM, 27.73125 MHz FM and 27.69125 MHz FM in the 1300 UTC - 1305 UTC time frame

Lots of SSB signals all over the band.  Not much paging signals noted yet, but I imagine they will be popping up as the morning goes on.

37
VHF/UHF Logs, including satellites and radiosondes / Asian Fishermen Fishery Chatter “Snapshot” Via G8JNJ SDR 27 Nov 2024
« on: November 27, 2024, 1137 UTC »
Via G8JNJ SDR

27 November 2024
11/27/2024
27.11.2024

Via Wessex webSDR - G8JNJ SDR

Asian fishery radio comms fishing fleet radio network 27.5 MHz - 39.5 MHz
12.5 kHz or 25 kHz spacing
Single frequency simplex
FM voice, carrier squelch - CSQ
No tone squelch
No PL / DPL
300 baud or 1200 baud in-band signaling for selective calling, ship to ship calling, fleet call, group call, GPS location broadcast, location request, ack - acknowledge and radio check function.  1/4 wave ground plane type antennas are standard with antenna tuning unit (automatic antenna matcher / antenna tuner) included as part of the radio.

25w output (some radios’ specs are for 30w output). 

11K0F3E / 11K0F1D / 11K0F2D in 12.5 kHz spacing - listed as 11K0G3E - 11K0G1D - 11K0G2D in 12.5 kHz channel “export mode”. 

16K0F3E / 16K0F1D / 16K0F2D - listed as 16K0G3E - 16K0G1D - 16K0G2D normal 25 kHz channel steps (standard Chinese legal 480 channel mode).

  Dedicated fisheries radiotelephone 27.500 MHz 39.500 MHz 39.475 MHz 39.4875 MHz FM NFM [CSQ].

Calling channels
Channel 221 - 32.875 MHz FM
Channel 231 - 33.100 MHz FM
Channel 236 - 33.225 MHz FM
Channel 238 - 33.275 MHz FM


Logs
1105 UTC - 1115 UTC

29.7125 MHz FM [CSQ]
29.7250 MHz FM [CSQ]
29.7500 MHz FM [CSQ]
29.7750 MHz FM [CSQ]
29.8250 MHz FM [CSQ]
29.8750 MHz FM [CSQ]
29.9125 MHz FM [CSQ]
29.9250 MHz FM [CSQ]
29.9625 MHz FM [CSQ]
29.9750 MHz FM [CSQ]
29.9875 MHz FM [CSQ]
30.0750 MHz FM [CSQ]
30.1250 MHz FM [CSQ]
30.3000 MHz FM [CSQ]
30.4125 MHz FM [CSQ]
30.5000 MHz FM [CSQ]
30.5250 MHz FM [CSQ]
30.5500 MHz FM [CSQ]
30.7750 MHz FM [CSQ]
30.8000 MHz FM [CSQ]
30.8125 MHz FM [CSQ]
30.9000 MHz FM [CSQ]
31.0000 MHz FM [CSQ]
31.0250 MHz FM [CSQ]
31.1000 MHz FM [CSQ]
31.2250 MHz FM [CSQ]
31.4000 MHz FM [CSQ]
31.6125 MHz FM [CSQ]
31.6250 MHz FM [CSQ]
31.6625 MHz FM [CSQ]
31.7875 MHz FM [CSQ]
31.8000 MHz FM [CSQ]
31.8125 MHz FM [CSQ]
31.8750 MHz FM [CSQ]
31.9000 MHz FM [CSQ]
32.0000 MHz FM [CSQ]
32.0125 MHz FM [CSQ]
32.0375 MHz FM [CSQ]
32.0875 MHz FM [CSQ]
32.1000 MHz FM [CSQ]
32.2000 MHz FM [CSQ]
32.2125 MHz FM [CSQ]
32.2375 MHz FM [CSQ]
32.5000 MHz FM [CSQ]
32.9000 MHz FM [CSQ]
32.9750 MHz FM [CSQ]
32.9875 MHz FM [CSQ]
33.0000 MHz FM [CSQ]
33.0000 MHz FM [CSQ] - Fax bursts
33.0500 MHz FM [CSQ]
33.1000 MHz FM [CSQ]
33.1000 MHz FM [CSQ] - Data bursts
33.2000 MHz FM [CSQ]
33.2750 MHz FM [CSQ]
33.7500 MHz FM [CSQ] - Data bursts
33.8000 MHz FM [CSQ] - Data bursts
33.8875 MHz FM [CSQ]
33.8500 MHz FM [CSQ] - Data bursts


Logs
1155 UTC - 1205 UTC


29.7500 MHz FM [CSQ]
29.8250 MHz FM [CSQ]
29.8875 MHz FM [CSQ]
29.9750 MHz FM [CSQ]
30.0250 MHz FM [CSQ] with QRM from paging signals on 30.020 MHz FM
30.5000 MHz FM [CSQ]
30.6000 MHz FM [CSQ]
30.6750 MHz FM [CSQ]
30.7000 MHz FM [CSQ]
30.7875 MHz FM [CSQ]
30.8000 MHz FM [CSQ]
30.8125 MHz FM [CSQ]
31.1000 MHz FM [CSQ]
31.1125 MHz FM [CSQ]
31.1250 MHz FM [CSQ] with QRM from 31.120 MHz FM - US LMR business comms 31.12MHz FM
31.2250 MHz FM [CSQ]
31.2375 MHz FM [CSQ]
31.2875 MHz FM [CSQ]
31.3000 MHz FM [CSQ]
31.3375 MHz FM [CSQ]
31.4375 MHz FM [CSQ]
31.4500 MHz FM [CSQ]
31.4750 MHz FM [CSQ]
31.6000 MHz FM [CSQ]
31.6250 MHz FM [CSQ]
31.7000 MHz FM [CSQ]
31.8125 MHz FM [CSQ]
31.8250 MHz FM [CSQ]
31.9625 MHz FM [CSQ]
32.0125 MHz FM [CSQ]
32.2125 MHz FM [CSQ]
32.2750 MHz FM [CSQ]
32.5125 MHz FM [CSQ]
32.6125 MHz FM [CSQ]
32.6625 MHz FM [CSQ]
32.6875 MHz FM [CSQ]
32.7750 MHz FM [CSQ]
32.8500 MHz FM [CSQ]
32.8875 MHz FM [CSQ]
32.9125 MHz FM [CSQ]
32.9500 MHz FM [CSQ]
33.0000 MHz FM [CSQ]
33.0250 MHz FM [CSQ]
33.0375 MHz FM [CSQ]
33.0500 MHz FM [CSQ]

Logs
1230 UTC - 12xx UTC

29.7500 MHz FM [CSQ]
29.8250 MHz FM [CSQ]
29.8875 MHz FM [CSQ]
29.9750 MHz FM [CSQ]
30.0250 MHz FM [CSQ] with QRM from paging signals on 30.020 MHz FM
30.0375 MHz FM [CSQ]
30.1750 MHz FM [CSQ] with QRM from frequent data bursts on 30.175MHz
30.3500 MHz FM [CSQ]
30.4125 MHz FM [CSQ]
30.4500 MHz FM [CSQ]
30.4750 MHz FM [CSQ]
30.5000 MHz FM [CSQ]
30.7750 MHz FM [CSQ]
30.8125 MHz FM [CSQ] - very busy
31.0750 MHz FM [CSQ]
31.1750 MHz FM [CSQ] with QRM from U.S. land mobile comms on 31.180 MHz FM
31.1875 MHz FM [CSQ] with QRM from U.S. land mobile comms on 31.18 MHz FM
31.3375 MHz FM [CSQ]
31.4000 MHz FM [CSQ]
31.4375 MHz FM [CSQ]
31.5000 MHz FM [CSQ]
31.8250 MHz FM [CSQ]
31.9000 MHz FM [CSQ]
31.9750 MHz FM [CSQ] with QRM from EPAR data link bursts
32.1375 MHz FM [CSQ]
32.1750 MHz FM [CSQ]
32.5125 MHz FM [CSQ] with severe QRM from OTH radar
32.6500 MHz FM [CSQ]
32.8500 MHz FM [CSQ]
33.0000 MHz FM [CSQ] with heavy QRM from fax signal (data stream)
33.1000 MHz FM [CSQ] with QRM from U.S. LMR comms and data bursts
33.4250 MHz FM [CSQ] with QRM from military comms on same frequency
33.4375 MHz FM [CSQ]
33.6000 MHz FM [CSQ]
33.6375 MHz FM [CSQ]
33.6875 MHz FM [CSQ]
33.7125 MHz FM [CSQ] with QRM from U.S. fire dispatch on 33.720 MHz FM
33.7750 MHz FM [CSQ]

38
10/11 meters / Taxis and Fishermen in 10 Meters - 20 November 2024 [G8JNJ SDR]
« on: November 20, 2024, 1300 UTC »
28 MHz band
G8JNJ SDR receiver
SW UK
Wessex, UK
1215 UTC - 1300 UTC
20 November 2024


28.065 MHz FM - Taxi cab dispatcher, YL - Russia / CIS - Russian taxicab lady Olga
28.095 MHz FM - Taxi cab dispatcher, YL + OM drivers - RU
28.115 MHz FM - Taxi cab dispatcher + drivers, taxi cab, heavy fading
28.125 MHz FM - Asian fishery comms, Chinese fishery radio service
28.145 MHz FM - Taxi cab dispatcher YL - Russia / CIS - Russian taxi cab controllers 28MHz
28.155 MHz FM - Taxi cab dispatcher lady, Russian language - Russian taxis
28.165 MHz FM - Taxi cab dispatcher lady, Russian language - Russian taxis
28.195 MHz FM - Taxi cab dispatcher YL + OM drivers replying, loud strong FM signal
28.200 MHz FM - Asian fishermen, OMs chatting, heavy fading at 1221 UTC
28.215 MHz FM - Taxi cab dispatcher lady, Russian language - Russian taxis
28.230 MHz FM - Taxi cab dispatcher lady, Russian language - Russian taxis
28.250 MHz FM - Asian fishery radio chatter 28250.0 kHz FM [CSQ] Chinese fishermen
28.260 MHz FM - Taxi cab dispatch - RU / CIS taxis 28260.0 kHz FM
28.265 MHz FM - Russian taxi cab dispatch lady, very strong
28.275 MHz FM - Taxi cab dispatcher lady, Russian language - Russian taxis
28.295 MHz FM - Russian taxi cab dispatcher YL Olga 28295 kHz FM
28.315 MHz FM - Russian taxi cab dispatcher YL Olga 28315 kHz FM
28.500 MHz FM - Asian fishermen, heavy QRM from SSB ham signals on/nearby 28500 kHz
28.685 MHz FM - Russian taxi cab dispatcher YL "Olga" 28685kHz FM
28.875 MHz FM - Asian fishery radio chatter, previously logged fishermen on 28875.0 kHz FM
28.975 MHz FM - Asian fishery radio chatter, fishermen on 28.9750 MHz FM
28.985 MHz FM - Russia / CIS taxis 28985 kHz FM - taxi controller YL Olga
29.095 MHz FM - Russian taxi cab dispatcher, Russian PMR PMR 29095.0 kHz FM
29.175 MHz FM - Asian fishermen, fishery radio chatter 29175.0 kHz FM 29.175MHz FM [CSQ]
29.225 MHz FM - Asian fishermen, previously logged on this freq. 29225 kHz FM

39
10/11 meters / 27 MHz CB Repeaters - 8 November 2024 [Via UK Based SDR]
« on: November 08, 2024, 1309 UTC »
Tune in time:  1250 UTC


Frequency

26.595 MHz FM - Possible linked repeater or gateway repeater, pretty bad QRM from data bursts on 26.590 MHz and paging on 26.6 MHz
26.605 MHz FM - Possible linked repeater network - severe QRM from paging signals on 26.600 MHz, 26.605 MHz and 26.610 MHz
26.615 MHz FM - Possible linked repeater or simplex repeater, Russian taxi cab radio dispatcher QRM
26.625 MHz FM - UNID signals, simulcast??? linked repeater?   
26.755 MHz FM - Linked repeater system network
26.815 MHz FM - Linked repeater system network
26.835 MHz FM - Possible linked gateway system, pretty frequent QRM from paging systems on same frequency
26.845 MHz FM - Weak FM voice comms, likely linked repeater system, odd data signals on same frequency (multi-tone audio frequencies, in FM mode)
26.855 MHz FM - Linked repeater system, severe QRM from pager on 26.850 MHz and also AM voice comms on 26.855 MHz
26.970 MHz FM - Simplex repeater, re-transmitting noise/QRM from 26.965 MHz AM, 26.975 MHz AM and FM
26.975 MHz FM - Simplex repeater, getting keyed up basically non-stop
26.985 MHz FM - Simplex repeater, getting keyed up by SSB, AM and FM signals...single end-of-transmission beep
27.050 MHz FM - Simplex repeater, heavy QRM from 27.055 MHz AM and 27.055 MHz FM
27.055 MHz FM - Simplex repeater or repeaters, extremely bad QRM, including AM signals and USB comms on frequency
27.070 MHz FM - Linked repeater or simplex repeater?  Taxi cab company comms on 27.070MHz FM
27.100 MHz FM - Well-known repeater in Krasnodar, Russia active, getting keyed up by 27.095 MHz FM and 27.105 MHz FM
27.120 MHz FM - End of transmission tones noted, also FM retransmission of AM signal or off-frequency FM signals
27.150 MHz FM - Russian OMs and YLs, heard a transmission re-transmitted
27.200 MHz FM - Russian comms, numerous signals on top of each other..
27.205 MHz FM - Simplex repeater in Sweden with multi-tone EOT burst, suffering severe QRM from the strong signals on 27.200 MHz FM
27.225 MHz FM - Noise being transmitted in FM mode, lots of AM signals on/near frequency
27.250 MHz FM - Simplex repeater - retransmitting QRM from 27.245 MHz and RCRS data signals from 27.255 MHz
27.280 MHz FM - Severe QRM being retransmitted? likely from 27.285 MHz AM
27.285 MHz FM - Simplex repeater retransmitting AM signals (basically noise)
27.310 MHz FM - Weak FM signals with end of transmission "beeps"
27.330 MHz FM - Russian taxi cab dispatcher, sounds like there could be repeater in the background
27.350 MHz FM - Very strong Russian taxi cab comms, simplex repeater retransmitting (could be 27.355 MHz FM?)
27.390 MHz FM - Simplex repeater, very severe QRM from SSB comms nearby frequency
27.405 MHz FM - Linked repeaters?  Possible linked system, lots and lots of QRM



40
10/11 meters / 26765 AM 26.765 MHz AM Taxi Cab Radio Dispatcher YL Mexican Business Radio Comm
« on: November 08, 2024, 1233 UTC »
YL taxi lady, Juanita on 26.765 MHz AM 26,765 AM

Channel 21 / Band C (low channels)

Channel B21E AM / Channel C21E AM

Possibly out of Matamoros, Mexico. 

Video of reception from 29 October 2024

https://youtu.be/CEvG086rEFY?si=IQQp0Am_Cj3LJSJh

receiver location: Richmond VA

transceiver (receiver) used in video:
CRE 8900 / Alinco DX-10

antenna: Wilson Little Wil modified setup. Magnetic mount CB antenna connected to T-1000 antenna tuner (same thing as a MFJ MFJ-949 series of tuners - MFJ-949D Versa Tuner II / MFJ-949E Versa Tuner II wattmeter and SWR meter) with 9 foot long (1/4 wavelength)  counterpoise wire. 

Antenna tuned for this part of the 11m/10m band.



41
10/11 meters / Russian 2 Watt Data Links / Pagers 26.945 MHz and 26.960 MHz RX USA 10/29/2024
« on: October 30, 2024, 1253 UTC »
26945 kHz 26.945 MHz
26960 kHz 26.960 MHz

also paging signals pager signals on 26.950 MHz and 26.955 MHz / 26950 kHz 26955 kHz. 

Received in Richmond, VA on 29 October 2024.  2 watt power limit, 3 dB antenna gain limit. 

Per Russian regulations:

26945kHz and 26960 kHz:
Paging, car alarms, data links, remote control, RC, RCRS, telemetry, telecommand, alarm links and other general short range device use. 

12 kHz bandwidth limit
2w power 2 watt 2000mW
3dB antenna gain limit


Regulations also indicate the same 12kHz bandwidth for 26945 and 26960.

26.939 MHz - 26.951 MHz
for 26.945 MHz frequency

and
26.954 MHz - 26.966 MHz
for 26.960 MHz center frequency

which overlap pretty badly on 26.955 MHz.






Link to video clip:

https://youtu.be/8INREisTKBk?si=ZJNDLnPSdRT6kbJ5

42
10/11 meters / UK FM CB Signals Heard In Richmond VA USA 29 October 2024
« on: October 30, 2024, 1251 UTC »
Radio used is a CRE 8900, which is a rebranded AnyTone.  Now sold as the Alinco DX-10. 

Video clip link: 

https://youtu.be/Ap8SICjOEFg?si=G0pW3eLe3P7pzMay

43
VHF/UHF Logs, including satellites and radiosondes / VHF Low Band [Via G8JNJ SDR] 1450 UTC - 1530 UTC 25 October 2024
« on: October 25, 2024, 1555 UTC »
Tuned in around 1450 UTC, focused on above 30 MHz, ignored 26-30 MHz with a few exceptions above 29.7 MHz. 

29.800 MHz FM - POCSAG paging signals, w/QRM from FSK signals and OTHR
29.850 MHz FM - OTH Radar, 60 kHz BW, sounds much like the "foghorn"
29.855 MHz FM - Russian LMR - taxi cab dispatcher YL
29.875 MHz FM - Fishery radio chatter, Chinese fishermen, commonly heard freq
29.878 MHz FM - FSK signal, wave data buoy with QRM from radar and 29.875MHz FM comms
29.895 MHz FM - Very strong FSK signal, likely Datawell Waverider Buoy
29.900 MHz FM - POCSAG paging signals
29.911 MHz FM - Carrier, fading in and out rather dramatically
29.997 MHz FM - Carrier
29.999 MHz FM - Carrier
30.000 MHz FM - FM Carrier - Military deviation - no modulation
30.000 MHz FM - Military comms at 1502 UTC
30.020 MHz FM - Morse code ID, also POCSAG paging - Canada Canadian hospital pager
30.025 MHz FM - UNID military, fair to weak
30.025 MHz FM - Secure military comms, shaped digital noise bursts
30.050 MHz FM - Military, strong at 1455 UTC - 1456 UTC, possible U.S. mil
30.100 MHz FM - Secure military comms, shaped digital noise bursts
30.150 MHz FM - Weak FM military comms
30.155 MHz FM - Data bursts
30.175 MHz FM - Fishery radio chatter, Asian fishermen chatter
30.220 MHz FM - Canadian hospital pager POCSAG
30.225 MHz FM - Fishery radio chatter, fishing boat engine heard in background
30.250 MHz FM - "Foghorn" Radar, 60 kHz BW, 200Hz/400Hz PRF, very strong
30.400 MHz FM - Fishery radio chatter, fishing boat engine heard in background
30.410 MHz FM - FM carrier...fair to good signal strength, no modulation?? not 30.4125 MHz
30.550 MHz FM - Fishery radio chatter, Asian fishermen
30.640 MHz FM - U.S. LMR comms, bus dispatcher, good signals
30.640 MHz FM - U.S. LMR comms - highway maintenance or heavy construction?
30.700 MHz FM - Fishery radio chatter, dramatic fading / QSB
30.760 MHz FM - U.S. LMR comms, bus dispatcher
30.775 MHz FM - Fishery radio chatter, Asian fishermen
30.875 MHz FM - POCSAG paging
30.900 MHz FM - POCSAG paging
30.900 MHz FM - Secure military comms, shaped digital noise bursts
31.000 MHz FM - Fishery radio chatter, Asian fishermen chatter
31.040 MHz FM - U.S. LMR comms - bus or taxi dispatcher
31.080 MHz FM - U.S. LMR comms, fair to weak
31.100 MHz FM - Fishery radio chatter, fishermen, heavy QSB
31.120 MHz FM - U.S. LMR comms, bus dispatcher, very good signals
31.150 MHz FM - POCSAG paging - Greek pager - extremely strong around 1505 UTC
31.200 MHz FM - U.S. LMR comms
31.200 MHz FM - Fishery radio chatter, Asian fishermen chatter
31.240 MHz FM - U.S. LMR comms - heavy construction? 
31.275 MHz FM - Military FM comms, very wide FM deviation
31.320 MHz FM - U.S. LMR comms - business radio chatter
31.350 MHz FM - Military radio comms, very wide FM deviation
31.360 MHz FM - U.S. LMR comms, bus dispatcher
31.425 MHz FM - Fishery radio chatter, Asian fishermen
31.550 MHz FM - Fishery radio chatter, Asian fishermen
31.605 MHz FM - FSK signal, very strong, nonstop
31.625 MHz FM - OTH Radar, S9 to S9+20dB, 20-25 kHz BW
31.640 MHz FM - U.S. LMR comms, very difficult to copy due to radar QRM
31.700 MHz FM - Fishery radio chatter, Asian fishermen
31.725 MHz FM - POCSAG paging signals - UK hospital pager frequency
31.750 MHz FM - POCSAG paging signals - UK hospital pager frequency
31.775 MHz FM - POCSAG paging signals - UK hospital pager frequency
31.800 MHz FM - Fishery radio chatter, Asian fishermen
31.900 MHz FM - Secure military comms, shaped digital noise bursts
32.000 MHz FM - Secure military comms, shaped digital noise
32.075 MHz FM - Secure military comms, shaped digital noise
32.180 MHz FM - Costa Rican LMR - taxi cab Costa Rica (also 32.94 MHz) 77.0Hz 141.3Hz
32.250 MHz FM - Carrier - chirper
32.325 MHz FM - Carrier - chirper
32.585 MHz CW - Morse "S" beacon, possible Russian military
32.600 MHz FM - "radio check" - U.S. military
32.700 MHz FM - Secure military comms, shaped digital noise
32.940 MHz FM - Costa Rican LMR - taxi cab dispatch 77.0 Hz / 141.3 Hz
32.980 MHz FM - Carrier, fading in and out at 1512 UTC, unknown source
33.000 MHz FM - Secure military comms, shaped digital noise
33.040 MHz FM - U.S. LMR comms, bus company or similar transportation comms
33.060 MHz FM - U.S. LMR comms, possible bus dispatcher
33.075 MHz FM - Secure military comms, shaped digital noise
33.100 MHz FM - Fishery radio chatter, Asian fishermen chatter
33.100 MHz FM - Digital noise bursts, likely military comms in secure mode "X-Mode"
33.150 MHz FM - Secure military comms, shaped digital noise
33.200 MHz FM - Radar, 70 kHz BW, dramatic fades, meteor radar?
33.250 MHz FM - Secure military comms, shaped digital noise
33.425 MHz FM - Data bursts, 20 kHz bandwidth, MFSK
33.440 MHz FM - U.S. LMR comms, likely fire/rescue dispatch
33.520 MHz FM - U.S. Fire/Rescue dispatch
33.560 MHz FM - U.S. Fire/Rescue dispatch
33.580 MHz FM - U.S. Fire/Rescue dispatch
33.600 MHz FM - U.S. Fire/Rescue dispatch
33.640 MHz FM - U.S. Fire/Rescue dispatch
33.660 MHz FM - U.S. Fire/Rescue dispatch
33.680 MHz FM - U.S. Fire/Rescue dispatch
33.700 MHz FM - U.S. Fire/Rescue dispatch
33.720 MHz FM - U.S. Fire/Rescue dispatch
33.740 MHz FM - U.S. Fire/Rescue dispatch
33.750 MHz FM - Data bursts, also noted on 33.850 MHz
33.760 MHz FM - U.S. Fire/Rescue, seems to be patched to a digital voice source
33.780 MHz FM - U.S. Fire/Rescue dispatch
33.800 MHz FM - U.S. Fire/Rescue dispatch with tone out
33.820 MHz FM - U.S. Fire/Rescue dispatch
33.840 MHz FM - U.S. Fire/Rescue dispatch
33.850 MHz FM - Data bursts
33.860 MHz FM - U.S. Fire/Rescue dispatch,
33.880 MHz FM - U.S. Fire/Rescue dispatch with tone outs
33.900 MHz FM - U.S. Fire/Rescue dispatch, multiple users, U.S. East Coast time
33.920 MHz FM - U.S. Fire/Rescue dispatch
33.940 MHz FM - U.S. Fire/Rescue dispatch
33.960 MHz FM - U.S. Fire/Rescue dispatch
33.980 MHz FM - U.S. Fire/Rescue dispatch
34.1125 MHz FM - Turkish LMR - forestry service with selcall tone bursts
34.150 MHz FM - Tail end of FM military chatter, possible U.S. military
34.1625 MHz FM - Turkish LMR - forestry service radio comms with multi-tone bursts
34.1875 MHz FM - Turkish LMR - forestry service with selcall tone bursts
34.325 MHz FM - Turkish LMR - forestry service with selcall tone bursts
34.3625 MHz FM - Turkish LMR - forestry service with selcall tone bursts
34.3875 MHz FM - Turkish LMR - forestry radio network 34 MHz band
34.4250 MHz FM - Turkish LMR - forestry radio comms Turkey
34.5625 MHz FM - Turkish LMR - forestry service with selcall multi-tone bursts
34.750 MHz FM - Secure military voice comms - shaped digital noise
35.060 MHz FM - U.S. LMR
35.320 MHz FM - U.S. LMR - bus dispatch?
35.400 MHz FM - Data bursts
35.440 MHz FM - U.S. LMR - business comms
35.500 MHz FM - Data bursts
35.780 MHz FM - U.S. LMR - business radio
35.880 MHz FM - U.S. LMR - sounds like mobiles talking to mobiles
35.960 MHz FM - U.S. LMR business radio service comms, base station talking to mobiles
36.075 MHz FM - Secure military voice, digital noise
36.100 MHz FM - Military comms, pretty active, range control?
36.300 MHz FM - Data bursts, not secure military voice
36.500 MHz FM - Latin American taxi cab dispatcher - land mobile radio comms
36.500 MHz FM - Secure military voice, digital bursts
36.600 MHz FM - Military FM comms, French language?
36.700 MHz FM - Data bursts
37.000 MHz FM - Military FM comms, also secure digital voice noted
37.180 MHz FM - U.S. LMR - police dispatcher?
37.530 MHz FM - Brazilian LMR - taxi cab dispatcher Portuguese 103.5 Hz PL
37.550 MHz FM - Military FM comms
37.575 MHz FM - Military FM comms, wide FM deviation
37.700 MHz FM - Military secure comms, shaped digital noise
38.400 MHz FM - Military FM voice comms
38.660 MHz FM - Taxi cab dispatch, YL dispatcher - Latin American / South American LMR 173.8Hz PL
39.4125 MHz FM - Data bursts "chirpy" sounding pulsing noise
39.4375 MHz FM - Data bursts "chirpy" sounding pulsing noise 
39.5125 MHz FM - Data bursts "chirpy" sounding pulsing noise
39.5375 MHz FM - Data bursts "chirpy" sounding pulsing noise

44
VHF/UHF Logs, including satellites and radiosondes / Data Bursts 30.1915 MHz 30191.5 kHz 30.192 MHz [Via G8JNJ SDR] 16 Oct 2024
« on: October 24, 2024, 1235 UTC »

30.1915 MHz center frequency
Bandwidth 6 kHz, maybe 6.5 kHz or 7.0 kHz?
6K00F2D 6K00F1D
6K50F2D 6K50F1D
7K00F2D 7K50F1D

Received via G8JNJ SDR receiver in the UK.  Link to video clip below:

https://www.youtube.com/watch?v=PjyXQY42kOg

This is a unique one for me anyway.  I've logged data bursts on 30.155 MHz and various frequencies in the 26-28 MHz and 29.7 MHz - 30 MHz ballpark, plus more standard frequencies on regular old 30-50 MHz VHF low band. 

30.190 MHz is one of the 30 MHz remote control / wireless control telecommand frequencies available in Norway, power output is limited to 100mW and bandwidth is limited to 10 kHz.  So in a perfect world, 30.190 MHz center frequency, 30.185 MHz - 30.195 MHz. 

30.010 MHz
30.020 MHz
30.030 MHz
30.040 MHz
30.050 MHz
30.060 MHz
30.070 MHz
30.080 MHz
30.090 MHz
30.100 MHz
30.110 MHz
30.120 MHz
30.130 MHz
30.140 MHz
30.150 MHz
30.160 MHz
30.170 MHz
30.180 MHz
30.190 MHz
30.200 MHz
30.210 MHz
30.220 MHz
30.230 MHz
30.240 MHz
30.250 MHz
30.260 MHz
30.270 MHz
30.280 MHz
30.290 MHz
30.290 MHz
30.300 MHz

This does meet those requirements, since a 7 kHz wide signal is 30.188 MHz - 30.195 MHz (center frequency: 30.191.5 MHz).

In Spain, the frequency 30.195 MHz is allowed for RC R/C remote control radio control wireless control links telecommand - regulations permit  remote control, wireless command, wireless measurement, telemetry, telecommand.  500mW transmitter power output limit, ERP limit is 100mW (??)  10 kHz channel bandwidth, allocation 29 MHz / 30 MHz. 


29.710 MHz
29.720 MHz
29.730 MHz
29.740 MHz
29.750 MHz
29.760 MHz
29.770 MHz
29.780 MHz
29.790 MHz
29.800 MHz
29.810 MHz
29.820 MHz
29.830 MHz
29.840 MHz
29.850 MHz
29.860 MHz
29.870 MHz
29.880 MHz
29.890 MHz
29.900 MHz
29.910 MHz
29.920 MHz
29.930 MHz
29.940 MHz
29.950 MHz
29.960 MHz
29.970 MHz
29.980 MHz
29.990 MHz
30.035 MHz
30.045 MHz
30.055 MHz
30.065 MHz
30.075 MHz
30.085 MHz
30.095 MHz
30.105 MHz
30.115 MHz
30.125 MHz
30.135 MHz
30.145 MHz
30.155 MHz
30.165 MHz
30.175 MHz
30.185 MHz
30.195 MHz
30.205 MHz
30.215 MHz
30.225 MHz
30.235 MHz
30.245 MHz
30.255 MHz
30.265 MHz
30.275 MHz
30.285 MHz
30.295 MHz

The 30.190 MHz - 30.200 MHz channel limits don't quite work in this situation, but there's always the possibility that it is simply an off-frequency transmitter - either off-frequency from 30.190 MHz or off-frequency from 30.195 MHz. 

45
VHF/UHF Logs, including satellites and radiosondes / Asian Fishing Fleets 27.5 MHz - 39.5 MHz Logs 2023/2024
« on: October 22, 2024, 1457 UTC »
Logs, received locally and via SDR receivers located in the UK.  All frequencies are in MHz.  NFM is the mode 16K0F3E "20 kHz" channel bandwidth, 25 kHz spacing (officially) and 12.5 kHz spacing (unofficially).  Carrier squelch is used throughout.  Selective calling is done via 300 baud 300bps AFSK or 1200 baud 1200bpd MFSK in-band on-frequency signaling.  Data broadcast and GPS location transmission automatically included.  Calling channels CH221, CH231, CH236 and CH238. 

channel 221 - 32.875 MHz FM [CSQ]
channel 231 - 33.100 MHz FM [CSQ]
channel 236 - 33.225 MHz FM [CSQ]
channel 238 - 33.275 MHz FM [CSQ]

Not included in this list were fishermen using modified CB equipment, operating between 25.615 MHz and 30.105 MHz, mostly AM mode, but some FM noted.  Also not included were fishermen using VHF low band equipment, i.e. Canadian and U.S. trawlers on 29.770 MHz FM, 29.790 MHz FM, 29.820 MHz FM, 29.840 MHz FM and others, only 29.77 MHz FM and 29.79 MHz FM are legal Part 90 frequencies in the U.S. under the Business Radio Service

27.5000 MHz FM [CSQ] - QRM from/to digital modes, CW beacons and SSB voice
27.5125 MHz FM [CSQ] - active paging pager system on 27.505 MHz and 27.510 MHz
27.5250 MHz FM [CSQ] - severe QRM due to 27.525 MHz AM being popular in U.S.A. with freeband CB
27.5375 MHz FM [CSQ] - severe QRM with 27.535 MHz AM 27.535 MHz FM 27.54 MHz SSB CB freebanders
27.5500 MHz FM [CSQ] - Severe QRM from/to 27.555 MHz USB, 27.550 MHz USB, 27.545 MHz, etc.
27.5625 MHz FM [CSQ] - 27.560 MHz USB, 27.565 MHz AM FM USB LSB QRM city
27.5750 MHz FM [CSQ] - QRM with 27.575 MHz AM and freeband CB radio users on/near frequency 27575kHz
27.5875 MHz FM [CSQ] - QRM with 27.585 MHz AM and freeband CB 11m 27585 kHz 27.590 MHz
27.59625 MHz - BEGIN UK FM CB 27/81 BAND 27.60125 MHz - 27.99125 MHz FM only 10 kHz steps
27.60125 MHz - BEGIN CADS/WPAS 27.60125 MHz - 27.99125 MHz 10 kHz steps
27.6050 MHz - BEGIN CADS/WPAS 27.605 MHz - 27.995 MHz 10 kHz steps
27.6000 MHz FM [CSQ] - QRM with UK FM CB channel 1 freq. 27.60125 MHz FM, also pagers on 27.6MHz
27.6250 MHz FM [CSQ] - QRM from/to various CB and land mobile networks 27MHz 27.62125 MHz FM
27.6375 MHz FM [CSQ] - Severe QRM from ROS data mode 27.635 MHz USB, also U.S. truckers on 27.635 MHz AM
27.6500 MHz FM [CSQ] - U.S. military carrier 27.650 MHz, also UK FM CB radio 27.65125 MHz FM
27.6625 MHz FM [CSQ] - Severe QRM from SSB CB radio comms on/near frequency i.e. 27.665 MHz USB
27.6750 MHz FM [CSQ] - Severe QRM from SSB CB comms on/near this frequency
27.7000 MHz FM [CSQ] - Severe QRM due to 27.700 MHz USB SSTV frequency, also 27.70125 MHz FM UK FM CB
27.7125 MHz FM [CSQ] - QRM w/ UK FM CB frequency 27.71125 MHz FM right on top of that frequency
27.7250 MHz FM [CSQ] - Active LMR/PMR system, 27.720 MHz data link/telemetry
27.7375 MHz FM [CSQ] - 27.735 MHz FM 27.735 MHz FM and 27.74125 MHz FM UK FM CB Channel 15
27.7500 MHz FM [CSQ] - QRM, UK FM CB 27.75125 MHz FM 27.751 FM CADS WPAS
27.7625 MHz FM [CSQ] - QRM with data links on 27.760 MHz
27.7750 MHz FM [CSQ] - Heavy QRM, UK FM CB channels 18 and 19, esp. 27.78125 MHz FM and LMR/PMR users
27.8000 MHz FM [CSQ] - QRM with pagers, telemetry, fishnet buoys, also 27.80125 MHz FM UK FM CB
27.8250 MHz FM [CSQ] - QRM with CADS/WPAS, Russian taxi cab dispatchers and other land mobile users
27.8375 MHz FM [CSQ] - 27.835 MHz FM busy Russian taxi cab dispatcher radio YL Olga
27.8500 MHz FM [CSQ] - QRM with UK FM 27.85125 MHz FM, as well as CADS/WPAS and pagers on 27.845 MHz
27.8625 MHz FM [CSQ] - Active Russian land mobile users 27.865 MHz FM and freeband CB 27.865 MHz AM
27.8750 MHz FM [CSQ] - Adjacent to 27MHz marine CH88 emergency 27.88 MHz AM
27.8875 MHz FM [CSQ] - QRM from paging system on 27.885 MHz FM
27.9000 MHz FM [CSQ] - QRM from/to paging systems, UK FM CB 27.90125 MHz FM and data link/telemetry
27.9125 MHz FM [CSQ] - QRM from/to UK FM CB 27.91125 MHz FM (very close in frequency)
27.9250 MHz FM [CSQ] - QRM from/to LMR land mobile systems 27.925 MHz and marine users 27.92 MHz AM
27.9375 MHz FM [CSQ] - QRM from/to LMR comms 27.935 MHz FM, 27.94 MHz AM marine users
27.9500 MHz FM [CSQ] - QRM from/to data links, pagers 27.95MHz, UK FM CB 27.95125 MHz FM CB36
27.9625 MHz FM [CSQ] - QRM from/to various CB comms 27.965 MHz AM and FM
27.9750 MHz FM [CSQ] - QRM from/to UK FM CB 27.981 FM 27.97125 MHz FM, taxis and freeband CB
27.9875 MHz FM [CSQ] - QRM from/to UK FM CB 27.98125 MHz 27.99125 MHz, taxis on 27.985 MHz FM
27.99125 MHz - END CADS/WPAS 27.60125 MHz - 27.99125 MHz 10 kHz steps
27.9950 MHz - END CADS/WPAS 27.605 MHz - 27.995 MHz 10 kHz steps
27.99625 MHz - END UK FM CB 27/81 BAND 27.60125 MHz - 27.99125 MHz FM only 10 kHz steps
28.0000 MHz - BEGIN 10 METER HAM RADIO ALLOCATION 29700 kHz 29.7 MHz
28.0000 MHz FM [CSQ]
28.0125 MHz FM [CSQ]
28.0250 MHz FM [CSQ]
28.0500 MHz FM [CSQ]
28.0625 MHz FM [CSQ]
28.1000 MHz FM [CSQ]
28.1125 MHz FM [CSQ]
28.1250 MHz FM [CSQ]
28.1375 MHz FM [CSQ]
28.1500 MHz FM [CSQ] - often with Russian taxi QRM 28.145 MHz FM 28.155 MHz FM
28.1750 MHz FM [CSQ]
28.2000 MHz FM [CSQ]
28.2250 MHz FM [CSQ]
28.2750 MHz FM [CSQ]
28.3000 MHz FM [CSQ]
28.3125 MHz FM [CSQ]
28.3250 MHz FM [CSQ]
28.3375 MHz FM [CSQ]
28.3500 MHz FM [CSQ]
28.3750 MHz FM [CSQ]
28.4000 MHz FM [CSQ]
28.4250 MHz FM [CSQ]
28.4125 MHz FM [CSQ]
28.4375 MHz FM [CSQ]
28.4500 MHz FM [CSQ]
28.4750 MHz FM [CSQ]
28.5750 MHz FM [CSQ]
28.6000 MHz FM [CSQ]
28.6125 MHz FM [CSQ]
28.6500 MHz FM [CSQ]
28.6750 MHz FM [CSQ]
28.6875 MHz FM [CSQ]
28.7000 MHz FM [CSQ]
28.7250 MHz FM [CSQ]
28.7375 MHz FM [CSQ]
28.7500 MHz FM [CSQ] - often with Russian taxi cab QRM
28.7625 MHz FM [CSQ] - often with Russian taxi cab QRM 28.765 MHz 28.755 MHz
28.7750 MHz FM [CSQ]
28.8000 MHz FM [CSQ]
28.8250 MHz FM [CSQ]
28.8500 MHz FM [CSQ]
28.8750 MHz FM [CSQ]
28.8875 MHz FM [CSQ] - Very busy channel
28.9000 MHz FM [CSQ]
28.9250 MHz FM [CSQ]
28.9500 MHz FM [CSQ]
28.9750 MHz FM [CSQ]
29.0000 MHz FM [CSQ]
29.0125 MHz FM [CSQ] - often with pretty bad QRM 29.000 MHz AM 29.010 MHz AM
29.0250 MHz FM [CSQ]
29.0500 MHz FM [CSQ]
29.0750 MHz FM [CSQ]
29.1000 MHz FM [CSQ]
29.1250 MHz FM [CSQ]
29.1500 MHz FM [CSQ]
29.1750 MHz FM [CSQ] - very busy
29.1875 MHz FM [CSQ]
29.2000 MHz FM [CSQ]
29.2125 MHz FM [CSQ]
29.2250 MHz FM [CSQ] - very busy, lots of chatter
29.2500 MHz FM [CSQ]
29.2750 MHz FM [CSQ]
29.3000 MHz FM [CSQ]
29.3250 MHz FM [CSQ]
29.3375 MHz FM [CSQ]
29.3500 MHz FM [CSQ]
29.3625 MHz FM [CSQ]
29.3750 MHz FM [CSQ]
29.4000 MHz FM [CSQ]
29.4250 MHz FM [CSQ]
29.4500 MHz FM [CSQ]
29.4625 MHz FM [CSQ]
29.4750 MHz FM [CSQ] - very busy
29.5000 MHz FM [CSQ]
29.5125 MHz FM [CSQ]
29.5250 MHz FM [CSQ]
29.5500 MHz FM [CSQ]
29.5625 MHz FM [CSQ]
29.5750 MHz FM [CSQ]
29.6000 MHz FM [CSQ] - causing QRM to 10 meter FM calling frequency 29.6 MHz FM
29.6125 MHz FM [CSQ]
29.6250 MHz FM [CSQ]
29.6375 MHz FM [CSQ]
29.6500 MHz FM [CSQ]
29.6625 MHz FM [CSQ] - causing severe QRM to 29.66 MHz FM
29.6750 MHz FM [CSQ] - causing QRM from 10m ham operators - repeater outputs 29.66MHz FM 29.67 MHz FM
29.6875 MHz FM [CSQ] - non amateur comms, causing QRM from 10m repeater output 29.68 MHz 29.69 MHz
29.7000 MHz FM [CSQ] - frequent QRM from UNID users on 29.700 MHz USB - freeband outband comms
29.7000 MHz - END 10 METER HAM RADIO ALLOCATION 29700 kHz 29.7 MHz
29.7125 MHz FM [CSQ] - next to U.S. LMR channel 29.710 MHz FM
29.7250 MHz FM [CSQ] - next to U.S. LMR channel 29.730 MHz FM
29.7375 MHz FM [CSQ] - QRM from FSK data signals and other unknown data bursts
29.7500 MHz FM [CSQ] - QRM from POCSAG paging signals on 29.750 MHz FM
29.7625 MHz FM [CSQ] - QRM due to various FSK signals on/near frequency, also Russian taxis 29.765 MHz FM
29.7750 MHz FM [CSQ] - next to U.S. LMR channel 29.770 MHz FM
29.7875 MHz FM [CSQ] - next to U.S. LMR channel 29.790 MHz FM
29.8000 MHz FM [CSQ] - Often severe QRM from paging signals on frequency 29.8 MHz, also data bursts 29.805 MHz
29.8125 MHz FM [CSQ] - Sporadic QRM from CIS taxi cab LMR systems 29.815 MHz FM
29.8250 MHz FM [CSQ] - Very busy
29.8375 MHz FM [CSQ] - QRM from Russian taxi cab dispatcher lady 29.835 MHz FM
29.8500 MHz FM [CSQ] - QRM from OTH Radar and Russian taxi dispatcher on 29.855 MHz FM
29.8625 MHz FM [CSQ] - QRM from "Foghorn" radar (often 30-50+ kHz wide)
29.8750 MHz FM [CSQ] - Very busy, often severe QRM
29.8875 MHz FM [CSQ] - QRM from OTHR, FSK data signals and UNID land mobile users 29.88 MHz and 29.885 MHz
29.9000 MHz FM [CSQ] - Often severe QRM from paging signals on frequency 29.9 MHz
29.9125 MHz FM [CSQ] - QRM from freeband CBers 29.915 MHz AM and Russian taxis 29.915 MHz FM
29.9250 MHz FM [CSQ]
29.9375 MHz FM [CSQ] - Data links (poly tone) on 29.935 MHz, UNID free band signals 29.940 MHz LSB
29.9500 MHz FM [CSQ] - QRM from Russian taxi dispatch lady LMR 29.945 MHz FM 29.955 MHz FM
29.9625 MHz FM [CSQ] - QRM from Datawell waverider FSK signals and Russian taxi cab 29.965 MHz FM
29.9750 MHz FM [CSQ] - Sporadic QRM from studio link? 29.9735 MHz AM 29.974MHz AM
29.9875 MHz FM [CSQ] - QRM from carriers, chirpers, etc. 29.995 MHz, 29.985 MHz, etc.
30.0000 MHz - BEGIN MILITARY TACTICAL FM 30-88 MHz
30.0000 MHz - BEGIN U.S. MILITARY PRIMARY BAND 25 kHz STEPS TO 30.575 MHz
30.0000 MHz FM [CSQ] - Often severe QRM from carriers, chirpers and military comms on 30.000 MHz
30.0125 MHz FM [CSQ] - QRM from chirpers and carriers on/near 30.000 MHz, 30.005 MHz, 30.01 MHz, etc.
30.0250 MHz FM [CSQ] - QRM from military comms and Canada POCSAG pagers 30.020 MHz 30.022 MHz
30.0375 MHz FM [CSQ]
30.0500 MHz FM [CSQ] - QRM from Russian taxi cab dispatcher lady 30.055 MHz FM
30.0625 MHz FM [CSQ]
30.0750 MHz FM [CSQ] - Military FM voice and secure comms active on frequency
30.0875 MHz FM [CSQ] - QRM from Russian taxi cab dispatcher lady 30.085 MHz FM
30.1000 MHz FM [CSQ] - QRM, 30.100 MHz POCSAG pager, Russian mil, Russian taxis on 30.095MHz 30.105MHz
30.1125 MHz FM [CSQ] - QRM from Russian taxi cab dispatcher lady 30.105 MHz FM
30.1250 MHz FM [CSQ]
30.1500 MHz FM [CSQ] - sporadic QRM from datalink system on 30.155 MHz
30.1750 MHz FM [CSQ] - QRM from military FM comms on frequency
30.1875 MHz FM [CSQ]
30.2000 MHz FM [CSQ] - QRM from odd data signal on 30.1915 MHz or 30.190 MHz or 30.192 MHz?
30.2125 MHz FM [CSQ]
30.2250 MHz FM [CSQ] - QRM from Canadian hospital paging systems on 30.220 MHz FM
30.2500 MHz FM [CSQ]
30.2750 MHz FM [CSQ]
30.3000 MHz FM [CSQ] - Military users active on frequency
30.3125 MHz FM [CSQ] - Some QRM from shortwave broadcast harmonic? 30.310 MHz AM
30.3250 MHz FM [CSQ]
30.3375 MHz FM [CSQ]
30.3500 MHz FM [CSQ]
30.3750 MHz FM [CSQ]
30.4000 MHz FM [CSQ] - Military users active on frequency
30.4125 MHz FM [CSQ] - Frequent QRM from Russian (???) land mobile system on 30.41 MHz
30.4250 MHz FM [CSQ]
30.4375 MHz FM [CSQ]
30.4500 MHz FM [CSQ] - QRM from strong U.S. military use of 30.45 MHz FM
30.4625 MHz FM [CSQ]
30.4750 MHz FM [CSQ]
30.4875 MHz FM [CSQ]
30.5000 MHz FM [CSQ] - QRM from Arabic speaking stations, UNID location
30.5125 MHz FM [CSQ]
30.5250 MHz FM [CSQ]
30.5375 MHz FM [CSQ]
30.5500 MHz FM [CSQ]
30.5625 MHz FM [CSQ]
30.5750 MHz FM [CSQ] - QRM from 30.580 MHz business comms + military comms on 30.575 MHz
30.5750 MHz - END U.S. MILITARY PRIMARY ALLOCATION BAND 30.0 - 30.575 MHz
30.5800 MHz - BEGIN U.S. LAND MOBILE  PRIMARY ALLOCATION 20 kHz STEPS TO 31.980 MHz
30.5875 MHz FM [CSQ] - slight QRM from LMR business comms on 30.580 MHz FM
30.6000 MHz FM [CSQ] - Russian military QRM 30.6 MHz FM 30.604 MHz 30.605 MHz CW Morse code net
30.6250 MHz FM [CSQ]
30.6375 MHz FM [CSQ] - Active U.S. business band system on 30.64 MHz FM, sometimes extreme QRM
30.6500 MHz FM [CSQ] - frequent QRM due to military use of 30.65 MHz FM
30.6625 MHz FM [CSQ] - QRM from/to U.S. LMR systems on 30.66 MHz FM
30.6750 MHz FM [CSQ]
30.6875 MHz FM [CSQ]
30.7000 MHz FM [CSQ] - QRM from military users mil comms 30.70 MHz
30.7125 MHz FM [CSQ] - some QRM from US LMR Part 90 comms on 30.72 MHz FM
30.7250 MHz FM [CSQ] - Several U.S. LMR systems active on 30.720 MHz FM
30.7375 MHz FM [CSQ] - QRM due to active U.S. LMR system on 30.740 MHz FM
30.7500 MHz FM [CSQ] - QRM from military comms on 30.75 MHz, plus business comms on 30.74 MHz and 30.76 MHz
30.7625 MHz FM [CSQ] - U.S. Business users on 30.760 MHz FM, often pretty pronounced QRM
30.7750 MHz FM [CSQ]
30.7875 MHz FM [CSQ]
30.8000 MHz FM [CSQ] - QRM from UNID miliary users, likely IDF
30.8125 MHz FM [CSQ]
30.8250 MHz FM [CSQ] - U.S. business band users on 30.840 MHz, some severe QRM 30.82 MHz
30.8375 MHz FM [CSQ] - active U.S. business band users on 30.840 MHz, some severe QRM 30.85 MHz
30.8500 MHz FM [CSQ] - active U.S. business band users on 30.840 MHz, some severe QRM 30.85 MHz
30.8625 MHz FM [CSQ]
30.8750 MHz FM [CSQ] - QRM from military users, incl. Russian mil, plus POCSAG paging signals and 30.88 MHz
30.8875 MHz FM [CSQ] - some QRM from U.S. business users on 30.880 MHz FM
30.9000 MHz FM [CSQ] - some QRM from POCSAG paging signals on 30.9 MHz
30.9125 MHz FM [CSQ]
30.9250 MHz FM [CSQ]
30.9375 MHz FM [CSQ] - QRM from U.S. business comms on 30.940 MHz FM
30.9500 MHz FM [CSQ]
30.9750 MHz FM [CSQ]
30.9875 MHz FM [CSQ]
31.0000 MHz FM [CSQ] - frequent QRM from military comms on frequency 31.000 MHz FM
31.0250 MHz FM [CSQ]
31.0375 MHz FM [CSQ]
31.0500 MHz FM [CSQ]
31.0625 MHz FM [CSQ] - QRM from/to US LMR activity on 31.060 MHz FM
31.0750 MHz FM [CSQ]
31.0875 MHz FM [CSQ]
31.1000 MHz FM [CSQ] - QRM from military comms on frequency + U.S. land mobile users on 31.1 MHz
31.1125 MHz FM [CSQ]
31.1250 MHz FM [CSQ] - frequent QRM from U.S. business radio comms on 31.120 MHz FM
31.1500 MHz FM [CSQ] - frequent QRM from Greek paging system on 31.15 MHz and/or military comms on freq
31.1625 MHz FM [CSQ]
31.1750 MHz FM [CSQ]
31.2000 MHz FM [CSQ] - often severe QRM with 31.200 MHz [203.5 Hz PL] taxi cab dispatcher on frequency
31.2125 MHz FM [CSQ]
31.2250 MHz FM [CSQ]
31.2375 MHz FM [CSQ] - with QRM from and causing QRM to U.S. land mobile business comms on 31.240 MHz FM
31.2750 MHz FM [CSQ]
31.3000 MHz FM [CSQ]
31.3125 MHz FM [CSQ] - QRM to/from UNID voice comms on 31.313 MHz USB
31.3250 MHz FM [CSQ] - with QRM from EPAR datalink on 31.325 MHz and paging signals on 31.320 MHz FM
31.3500 MHz FM [CSQ] - military use of this frequency
31.3750 MHz FM [CSQ] - QRM from/to possible Russian military radio net on 31.380 MHz USB
31.3875 MHz FM [CSQ] - QRM from/to possible Russian military radio net on 31.380 MHz USB
31.4000 MHz FM [CSQ]
31.4125 MHz FM [CSQ]
31.4250 MHz FM [CSQ] - with QRM from EPAR datalink system out of France
31.4375 MHz FM [CSQ] - Frequent QRM, U.S. LMR business activity on 31.440 MHz FM
31.4500 MHz FM [CSQ]
31.4625 MHz FM [CSQ] - with QRM from EPAR datalink system out of France
31.4750 MHz FM [CSQ] - with QRM from EPAR datalink system out of France
31.4875 MHz FM [CSQ] - with QRM from EPAR datalink system out of France
31.5000 MHz FM [CSQ] - QRM from frequent "chirpy" data bursts and FM military comms 31.5 MHz FM
31.5250 MHz FM [CSQ]
31.5375 MHz FM [CSQ] - QRM to/from U.S. LMR networks on 31.540 MHz FM
31.5500 MHz FM [CSQ]
31.5625 MHz FM [CSQ]
31.5750 MHz FM [CSQ] - with heavy QRM from "chirper" carrier on 31.575 MHz
31.6000 MHz FM [CSQ]
31.6125 MHz FM [CSQ]
31.6250 MHz FM [CSQ] - very busy
31.6375 MHz FM [CSQ]
31.6500 MHz FM [CSQ]
31.6625 MHz FM [CSQ]
31.6750 MHz FM [CSQ]
31.6875 MHz FM [CSQ] - with QRM from EPAR datalink system out of France
31.7000 MHz FM [CSQ]
31.7125 MHz FM [CSQ]
31.7250 MHz FM [CSQ] - with QRM from POCSAG paging signals out of the UK
31.7375 MHz FM [CSQ] - QRM from U.S. LMR traffic on 31.740 MHz FM
31.7500 MHz FM [CSQ] - with QRM from POCSAG paging signals out of the UK
31.7625 MHz FM [CSQ]
31.7750 MHz FM [CSQ] - with QRM from POCSAG paging signals out of the UK
31.7875 MHz FM [CSQ]
31.8000 MHz FM [CSQ] - very busy, sporadic US LMR QRM
31.8125 MHz FM [CSQ]
31.8250 MHz FM [CSQ] - with QRM from U.S. land mobile systems on 31.820 MHz FM
31.8500 MHz FM [CSQ]
31.8625 MHz FM [CSQ] - QRM with U.S. LMR systems on 31.86 MHz FM
31.8750 MHz FM [CSQ]
31.9000 MHz FM [CSQ] - QRM with military users, also U.S. LMR systems on 31.900 MHz Fm
31.9125 MHz FM [CSQ]
31.9250 MHz FM [CSQ] - with QRM from EPAR datalink system out of France
31.9375 MHz FM [CSQ] - QRM with U.S. LMR business comms on 31.94 MHz FM
31.9500 MHz FM [CSQ] - Military users on frequency, IDF and many others
31.9625 MHz FM [CSQ] - QRM with U.S. LMR business comms on 31.96 MHz FM
31.9750 MHz FM [CSQ] - with QRM from EPAR datalink system out of France
31.9800 MHz - END U.S. LAND MOBILE PRIMARY ALLOCATION 30.58 MHz - 31.98 MHz 20kHz STEPS
32.0000 MHz - BEGIN U.S. MILITARY PRIMARY ALLOCATION 25 kHz STEPS TO 33.0 MHz
32.0000 MHz FM [CSQ] - QRM - popular military frequency 32.0 FM
32.0125 MHz FM [CSQ]
32.0250 MHz FM [CSQ]
32.0375 MHz FM [CSQ]
32.0500 MHz FM [CSQ]
32.0625 MHz FM [CSQ]
32.0750 MHz FM [CSQ]
32.0875 MHz FM [CSQ] - interference from data bursts on/near frequency
32.1000 MHz FM [CSQ] - IDF and other military tactical radio use noted
32.1125 MHz FM [CSQ]
32.1250 MHz FM [CSQ]
32.1375 MHz FM [CSQ]
32.1750 MHz FM [CSQ] - QRM from Costa Rica - taxi cab dispatch 32.18 MHz 77.0Hz 141.3Hz
32.1875 MHz FM [CSQ]
32.2000 MHz FM [CSQ]
32.2125 MHz FM [CSQ]
32.2250 MHz FM [CSQ]
32.2375 MHz FM [CSQ]
32.2500 MHz FM [CSQ]
32.2750 MHz FM [CSQ]
32.3000 MHz FM [CSQ] - sporadic QRM with various military comms systems 32.30 MHz FM
32.3125 MHz FM [CSQ]
32.3250 MHz FM [CSQ] - military use of this frequency 32.325 MHz FM
32.3375 MHz FM [CSQ]
32.3500 MHz FM [CSQ]
32.4000 MHz FM [CSQ]
32.4625 MHz FM [CSQ]
32.5000 MHz FM [CSQ]
32.5125 MHz FM [CSQ]
32.5375 MHz FM [CSQ]
32.5500 MHz FM [CSQ]
32.5875 MHz FM [CSQ] - Russian military CW radio beacon 32.585 MHz 32.587 MHz single letter beacon "S"
32.6000 MHz FM [CSQ]
32.6250 MHz FM [CSQ]
32.6500 MHz FM [CSQ]
32.6750 MHz FM [CSQ]
32.6875 MHz FM [CSQ]
32.7000 MHz FM [CSQ] - QRM from/to military users, FM clear voice and secure encrypted comms
32.7125 MHz FM [CSQ]
32.7500 MHz FM [CSQ] - frequent secure voice (military) X-mode signals on this frequency
32.8000 MHz FM [CSQ]
32.8500 MHz FM [CSQ]
32.8750 MHz FM [CSQ] - Calling channel
32.9000 MHz FM [CSQ] - QRM from military comms
32.9125 MHz FM [CSQ]
32.9375 MHz FM [CSQ] - QRM from Costa Rican taxi cab dispatcher on 32.940 MHz FM
32.9500 MHz FM [CSQ] - QRM from Costa Rica - taxi cab dispatch 32.94 MHz 77.0Hz 141.3Hz
32.9750 MHz FM [CSQ]
33.0000 MHz - END U.S. MILITARY PRIMARY ALLOCATION BAND 32-33 MHz
33.0000 MHz FM [CSQ] - Fax data stream often active on frequency at the same time
33.0125 MHz FM [CSQ] - QRM from/to U.S. LMR networks operating on 33.020 MHz FM
33.0200 MHz - BEGIN U.S. LAND MOBILE  PRIMARY ALLOCATION 20 kHz STEPS TO 33.980 MHz
33.0250 MHz FM [CSQ] - QRM from/to U.S. LMR networks operating on 33.020 MHz FM
33.0625 MHz FM [CSQ] - QRM with U.S. LMR networks on 33.060 MHz FM
33.0750 MHz FM [CSQ]
33.1000 MHz FM [CSQ] - Calling channel, QRM from U.S. land mobile comms on 33.1 MHz
33.1125 MHz FM [CSQ]
33.1250 MHz FM [CSQ] - QRM with U.S. LMR systems on 33.120 MHz FM
33.1375 MHz FM [CSQ]
33.1750 MHz FM [CSQ] - QRM from U.S. LMR systems on 33.180 MHz FM
33.2000 MHz FM [CSQ] - QRM from/to U.S. LMR on 33.2 MHz FM, military users on 33.200 MHz FM
33.2125 MHz FM [CSQ]
33.2250 MHz FM [CSQ] - Calling channel
33.2375 MHz FM [CSQ]
33.2500 MHz FM [CSQ]
33.2750 MHz FM [CSQ] - Calling channel
33.2875 MHz FM [CSQ]
33.3000 MHz FM [CSQ] - QRM from/to military users, U.S. LMR/PMR 33.300 MHz
33.3125 MHz FM [CSQ]
33.3250 MHz FM [CSQ] - QRM 33.320 MHz FM U.S. land mobile comms
33.3375 MHz FM [CSQ] - QRM 33.340 MHz FM U.S. land mobile comms
33.3750 MHz FM [CSQ]
33.4000 MHz FM [CSQ] - Military use of this freq, Russian mil - tactical data link AKKORD
33.4250 MHz FM [CSQ] - LMR use, Cuban PMR, also military use and 33.420 MHz U.S. fixed links 33.42MHz
33.4500 MHz FM [CSQ] - QRM from 33.45 MHz FM military and 33.44 MHz FM / 33.46 MHz FM U.S. fire
33.4750 MHz FM [CSQ] - QRM from 33.480 MHz fire rescue comms
33.4875 MHz FM [CSQ] - QRM from 33.480 MHz fire rescue comms
33.5000 MHz FM [CSQ] - Military use of this frequency for tactical data link, including AKKORD (Russian mil)
33.5250 MHz FM [CSQ] - Adjacent frequency interference see 33.520 MHz FM
33.5500 MHz FM [CSQ] - Military use of this frequency for tactical data link, including AKKORD (Russian mil)
33.5625 MHz FM [CSQ] - 33.56 MHz U.S. fire departments
33.5750 MHz FM [CSQ] - 5 kHz away from 33.580 MHz FM
33.6000 MHz FM [CSQ] - Military use - Russian military, also U.S. fire depts 33.6 MHz 33MHz band
33.6250 MHz FM [CSQ] - Military use, IDF and others, also 5 kHz away from 33.620 MHz FM US Fire/EMS
33.6500 MHz FM [CSQ] - QRM with military comms, also U.S. fire/rescue on 33.64 MHz and 33.66 MHz FM
33.6625 MHz FM [CSQ] - Severe QRM due to U.S. Fire/EMS dispatch systems on 33.660 MHz FM
33.7000 MHz FM [CSQ] - U.S. LMR - Fire/Rescue comms active on this freq 33.7 MHz
33.7125 MHz FM [CSQ] - U.S. Fire departments 33.700 MHz FM 33.720 MHz FM
33.7500 MHz FM [CSQ] - QRM: data bursts, U.S. fire dept comms 33.740 MHz and 33.760 MHz FM
33.8000 MHz FM [CSQ] - QRM w/ fire and rescue comms, plus data packet bursts UNID source
33.8500 MHz FM [CSQ] - QRM w/data packet bursts UNID source, U.S. LMR on 33.84 MHz and 33.860 MHz
33.8625 MHz FM [CSQ] - Significant QRM with U.S. fire rescue dispatch systems on 33.86 MHz FM
33.9000 MHz FM [CSQ] - U.S. Fire depts, also data bursts from unknown QTH, also miliary use of 33.9 MHz FM
33.9250 MHz FM [CSQ] - QRM from/to U.S. LMR fire/rescue on 33.920 MHz FM
33.9375 MHz FM [CSQ] - QRM from/to U.S. LMR fire/rescue on 33.940 MHz FM
33.9750 MHz FM [CSQ] - QRM from/to U.S. LMR fire/rescue on 33.980 MHz FM
33.9800 MHz - END U.S. LAND MOBILE  PRIMARY ALLOCATION 33.02 MHz - 33.98 MHz
34.0000 MHz - BEGIN U.S. MILITARY PRIMARY ALLOCATION 25 kHz STEPS TO 35.0 MHz
34.0000 MHz FM [CSQ] - QRM, military users active on this frequency
34.0250 MHz FM [CSQ] - QRM Turkey - Turkish LMR 34MHz forestry radio network
34.0375 MHz FM [CSQ] - QRM Turkey - Turkish LMR 34MHz forestry radio network
34.0500 MHz FM [CSQ] - QRM military comms, also Turkish LMR 34MHz forestry radio network
34.0625 MHz FM [CSQ] - QRM Turkey - Turkish LMR 34MHz forestry radio network
34.1000 MHz FM [CSQ] - QRM military comms, also Turkish LMR 34MHz forestry radio network
34.1125 MHz FM [CSQ] - QRM Turkey - Turkish LMR 34MHz forestry radio network
34.1500 MHz FM [CSQ] - QRM military comms, also Turkish LMR 34MHz forestry radio network

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