Messages

286

VHF/UHF Logs, including satellites and radiosondes / Re: VHF Low Band Logs - 13 Feb 2023 - Via G8JNJ SDR

« on: February 13, 2023, 1738 UTC »

Part 2, starting at 1710 UTC (1710 local time at SDR's location)


29.8000 MHz FM - POCSAG pager paging frequency, POCSAG paging bursts
29.8250 MHz FM - FSK signal
29.8500 MHz FM - POCSAG pager, mixing with FSK data bursts
29.8500 MHz FM - OTH Radar center frequency - "horn" sound, 20-30 kHz bandwidth
29.9000 MHz FM - POCSAG pager paging frequency, POCSAG paging bursts
30.0000 MHz FM - Unmodulated FM signal - wide bandwidth / deviation, likely military
30.0200 MHz FM - POCSAG paging bursts, followed by a 1-1.5 second unmodulated carrier
30.1000 MHz FM - Same "pips" signal noted on 32.0500 MHz FM
30.1000 MHz FM - POCSAG pager, weak to fair signal strength
30.2200 MHz FM - Weak POCSAG paging - known Canadian hospital pager frequency - 30.220 MHz and 30.020 MHz
30.3000 MHz FM - Encrypted digital comms, presumably military going by frequency and bandwidth
30.5800 MHz FM - US Land Mobile / Business Radio - Construction comms, truck to truck chatter
30.8000 MHz FM - US Land Mobile business comms - taxi dispatcher - New York accents
31.1000 MHz FM - Asian fishery radio
31.1000 MHz FM - "Can you advise on that, police are on scene" - US Land Mobile - Public Safety comms
31.1200 MHz FM - US Land Mobile - bus dispatcher - very active, well known users
31.3130 MHz USB - Arabic, right on 31.313 USB
31.1600 MHz FM - US Land Mobile - "move it, right there...right there..."
31.2000 MHz FM - UNID land mobile (British accents) "Johnny, get back up on top there" "okay roger"
31.2000 MHz FM - Taxi dispatcher - Spanish language
31.3200 MHz FM - POCSAG pager - SIO 444, good signal
31.3250 MHz FM - French traffic signal control data
31.4000 MHz FM - POCSAG pager
31.4400 MHz FM - US Land Mobile radio - business comms
31.4750 MHz FM - Military comms - tell-tale wide band FM signal (tail end of transmission)
31.4800 MHz FM - US Land Mobile "oh yeah, right"
31.6875 MHz FM - French traffic signal control data
31.7250 MHz FM - UK Hospital on-site paging systems - POCSAG pagers
31.7500 MHz FM - UK Hospital on-site paging systems - POCSAG pagers - most active
31.7750 MHz FM - UK Hospital on-site paging systems - POCSAG pagers
31.9250 MHz FM - Asian fishery radio chatter
31.9750 MHz FM - French traffic signal control data
32.0000 MHz FM - Military comms - telltale wide FM deviation, UNID language
32.0500 MHz FM - "Pips" - 2-3 every second, on/off keying, right on 32.05000 MHz
32.1750 MHz FM - Russian language
32.1800 MHz FM - Taxi dispatcher - Spanish language - likely Costa Rican taxi cabs
32.7000 MHz FM - Military signal noted - key up, nice wide FM deviation
32.9000 MHz FM - Data signal, sounds like FAX or SSTV
32.9400 MHz FM - Taxi dispatcher - Spanish language
32.9500 MHz FM - Asian fishery radio
33.0800 MHz FM - US Land Mobile   
33.1000 MHz FM - US Land Mobile - bus or taxi or car service dispatch, business comms
33.5200 MHz FM - US fire rescue dispatch with tone outs
33.6200 MHz FM - US fire rescue dispatch
33.6600 MHz FM - US fire rescue dispatch "station 44" "42 is responding" "copy, standing by at the hydrant"
33.6800 MHz FM - US fire rescue dispatch
33.7400 MHz FM - US fire rescue dispatch "742" - possibly part of a callsign - US East Coast times heard
33.8600 MHz FM - US fire rescue dispatch "....road..." "Chevy Tahoe..."
33.8800 MHz FM - US fire rescue dispatch
33.9000 MHz FM - US fire rescue dispatch with tone outs
33.9400 MHz FM - US fire rescue dispatch - US Land Mobile
33.9800 MHz FM - US fire rescue dispatch
34.3000 MHz FM - Military comms - "Thirty Four-Thirty Fox Mike" - US Military
34.5500 MHz FM - POCSAG pager paging
35.1875 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.2000 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.2125 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.2500 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.3125 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.3375 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.3500 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.3625 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.3750 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.4000 MHz FM - Pager - POCSAG signals
35.4250 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.4625 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.5000 MHz FM - Pager - POCSAG paging noted
35.5125 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.5375 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.5500 MHz FM - Pager - POCSAG paging signals
35.5500 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.5875 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.6125 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.6250 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.6750 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.6800 MHz FM - Pager - POCSAG paging signals - sporadic
35.7125 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.7375 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.7600 MHz FM - US Land Mobile - construction company, business comms
35.7800 MHz FM - US Land Mobile -  business comms  "that one's not gonna get any lighter" "10-4"
35.8125 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.8200 MHz FM - Short FM transmission noted, could be US LMR business comms or another service
35.8625 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.8800 MHz FM - US Land Mobile -  business comms
35.9000 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.9125 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.9625 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
35.9875 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
36.1125 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts
36.2000 MHz FM - Encrypted digital comms, active
36.2375 MHz FM - French Land Mobile - Autoroute radio system, with selective call tone bursts

287

VHF/UHF Logs, including satellites and radiosondes / VHF Low Band Logs - 13 Feb 2023 - Via G8JNJ SDR

« on: February 13, 2023, 1439 UTC »

Started listening at 1430 UTC on 13 February 2023

Only activity above 29.7 MHz / 29700 kHz.  Even though 11 meters and 10 meters are both blowing up.

29710 FM - 29.710 MHz FM - Spanish language, sounds like taxi dispatcher (YL dispatcher) - US land mobile frequency
29775 FM - 29.775 MHz FM - Asian fishery radio - Chinese fishing fleet radio 27.500 - 39.475 MHz FM, 25 kHz steps
29900 FM - 29.900 MHz FM - POCSAG paging signals - 1-3 second bursts
29940 FM - 29.940 MHz FM - Very strong FM-CW over the horizon radar (OTHR), 60 kHz wide 29.92 MHz - 29.96 MHz
29996 FM - 29.996 MHz FM - Carrier on and off, sometimes for 60+ seconds at once, 29.996 MHz
30000 FM - 30.000 MHz FM - FM voice comms, tell-tale 150 Hz western military/NATO tone squelch hum
30000 FM - 30.000 MHz FM - FM carrier just seems to stay there, appears to also have the 150Hz NATO tone
30020 FM - 30.020 MHz FM - CW ID - likely Canadian hospital pager systems (known users of 30.02 MHz and 30.22 MHz)
30150 FM - 30.150 MHz FM - Military comms, very short transmission, then switched to digital (encryption)
30250 FM - 30.250 MHz FM - FM-CW OTH Radar - "horn" like sound, about 50-60 kHz wide
30425 FM - 30.425 MHz FM - Tail end of a FM transmission, does not sound like military (probably fishing fleet radio chatter)
30775 FM - 30.775 MHz FM - Asian fishery radio chatter, fading up and down but definitely readable
30900 FM - 30.900 MHz FM - Russian language comms - sounds like military? 
31100 FM - 31.100 MHz FM - Asian fishery radio - informal chatter, very busy
31120 FM - 31.120 MHz FM - US land mobile business radio - bus dispatcher
31175 FM - 31.175 MHz FM - UNID language, short transmission, possibly fishing fleet radio chatter
31325 FM - 31.325 MHz FM - French traffic signal control data
31400 FM - 31.400 MHz FM - Very strong paging signal or data signal
31725 FM - 31.725 MHz FM - UK Hospital paging systems - POCSAG
31750 FM - 31.750 MHz FM - UK Hospital paging systems - POCSAG
31775 FM - 31.775 MHz FM - UK Hospital paging systems - POCSAG
31960 FM - 31.960 MHz FM - US or Latin American taxi dispatcher - Spanish language
31975 FM - 31.975 MHz FM - French traffic signal control data
32000 FM - 32.000 MHz FM - Asian fishery radio chatter
32250 FM - 32.250 MHz FM - Strong unmodulated FM carrier
33040 FM - 33.040 MHz FM - UNID comms, Spanish - could be US business? 
33075 FM - 33.075 MHz FM - Very strong digital signal - sounds almost like fax?
33100 FM - 33.100 MHz FM - US business dispatcher - taxi or bus, directing pickup locations, strong signals
33400 FM - 33.400 MHz FM - Digital signals - similar to those noted on military channels "going secure"
33440 FM - 33.440 MHz FM - Tone out - probably fire / EMS dispatch
33450 FM - 33.450 MHz FM - Digital encryption - likely military comms
33480 FM - 33.480 MHz FM - US fire rescue dispatch
33520 FM - 33.520 MHz FM - US fire rescue dispatch
33540 FM - 33.540 MHz FM - US fire rescue dispatch
33680 FM - 33.680 MHz FM - US fire rescue dispatch
33580 FM - 33.580 MHz FM - US fire rescue "ventilation completed, returning to service" - fire/rescue dispatcher
33740 FM - 33.740 MHz FM - Multiple signals on top of each other (fire/rescue comms) - including medical report
33760 FM - 33.760 MHz FM - US fire rescue dispatch
33780 FM - 33.780 MHz FM - US fire rescue dispatch "18-50 on scene, channel 1"
33800 FM - 33.800 MHz FM - US fire and rescue dispatch
33850 FM - 33.850 MHz FM - POCSAG pager - double checked and it is on 33.850 MHz - not a US based transmitter
33875 FM - 33.875 MHz FM - Fishery radio chatter, weak but there
33880 FM - 33.880 MHz FM - US fire and rescue comms, heavy fading
33900 FM - 33.900 MHz FM - US fire rescue dispatch, numerous systems on frequency
33920 FM - 33.920 MHz FM - US fire rescue dispatch
33940 FM - 33.940 MHz FM - US fire rescue dispatch
34550 FM - 34.550 MHz FM - POCSAG pager - sporadic activity
34625 FM - 34.625 MHz FM - French Autoroute radio system (with selective calling tones)
35360 FM - 35.360 MHz FM - "that project, right?" "right brother..." - US business comms
35400 FM - 35.400 MHz FM - Pager - POCSAG - short burst transmissions
35580 FM - 35.580 MHz FM - Pager - POCSAG paging signals
35760 FM - 35.760 MHz FM - US business traffic, trucks or construction
35820 FM - 35.820 MHz FM - US business traffic "I guess we saw the..." "she caught part of the..."
36250 FM - 36.250 MHz FM - FM voice tone modulated CW ID (automatic Morse code ID)
36250 FM - 36.250 MHz FM - Encrypted digital comms, active
36325 FM - 36.325 MHz FM - Military comms, noted 150Hz hum and tell-tale wide FM deviation

288

VHF/UHF Logs, including satellites and radiosondes / Re: Help to identify US Fire/EMS -stations 33-34 MHz?

« on: February 13, 2023, 1217 UTC »

The FCC DB is a good place to start.  Also check out the current 2023 VHF low band skip logs thread on RadioReference.  There is a lot of confirmed information there (including things like callsigns, PL tone/CTCSS tones or DPL codes/DCS codes in use) for the 33 MHz fire dispatch band and the 30-50 MHz band in general. 

https://forums.radioreference.com/threads/2023-vhf-low-band-logs.436351/page-24


Hope this helps.  There is a lot of exciting DX coming in on the 25-30 MHz band and the 30-50 MHz band right now with the cycle heating up like it is.

289

VHF/UHF Logs, including satellites and radiosondes / 30.450 MHz FM 150.0 Hz Fort Hood (Texas) Range Control 30.45 FM - 10 Feb 2023

« on: February 10, 2023, 1748 UTC »

Heard in Richmond, VA around 11:00 local time (1600 UTC).

Here is some of the transmissions caught on video:

https://www.youtube.com/watch?v=rWmtrt0P96Q

Note that the receiver in question (RadioShack Pro-651, also known as the Pro-106, GRE PSR-500 and Whistler WS1040) decodes the PL tone (CTCSS tone, tone squelch) as 151.4 Hz.  They are using 150.0 Hz, but 150.0Hz is not a civilian tone so its not included in any of these types of radios...and 151.4Hz is the closest to 150 Hz. 

This is the best I've heard Fort Hood Range Control in a while. 

290

VHF/UHF Logs, including satellites and radiosondes / Costa Rican Taxi Cab Dispatchers 32.1800 MHz 77.0Hz and 141.3Hz

« on: February 10, 2023, 1745 UTC »

32.1800 MHz FM is very active today.  Costa Rican taxi cab company using CTCSS (PL) tones 77.0 Hz and 141.3 Hz both active on 32.180 MHz 32180 kHz FM.

Received in Richmond, VA using handheld scanner receivers and a simple telescopic whip antenna.

291

VHF/UHF Logs, including satellites and radiosondes / 31.1000 MHz FM [CSQ] Asian Fishing Fleet Fishery Radio Heard in VA 02/10/2023

« on: February 10, 2023, 1743 UTC »

Heard via handheld receivers (scanners) using a telescopic CB HT antenna.  From 1400 UTC to 1430 UTC or so. 

31.100 MHz FM [CSQ] - Carrier squelch.

Checked the other "usual suspects" and there seemed to be something there - but 31.100 MHz was by far the loudest and clearest.  I was able to close the squelch and they sounded like local two-way land mobile at points. 

292

10/11 meters / 11m Band Activity 10 Feb 2023

« on: February 10, 2023, 1324 UTC »

Starting at 1300 UTC. Via W3HFU KiwiSDR

25695 AM - 25.695 MHz AM - Taxi dispatcher - Spanish language - heard basically every band opening!
25765 AM - 25.765 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
25805 AM - 25.805 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
25895 AM - 25.895 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
25905 AM - 25.905 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
25935 AM - 25.935 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
25965 AM - 25.965 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
26035 AM - 26.075 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
26075 AM - 26.075 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
26150 FM - 26.150 MHz FM - POCSAG paging bursts - UK pager frequency
26165 AM - 26.165 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
26250 FM - 26.250 MHz FM - POCSAG paging bursts
26350 FM - 26.350 MHz FM - POCSAG paging bursts
26415 USB - 26.415 MHz USB - Polish speaking stations
26420 USB - 26.420 MHz USB - Polish speaking stations
26425 USB - 26.425 MHz USB - Polish language
26435 USB - 26.435 MHz USB - Polish speaking freebanders, very busy
26440 USB - 26.440 MHz USB - Polish language
26445 USB - 26.445 MHz USB - Polish speaking stations
26450 FM - 26.450 MHz FM - POCSAG paging bursts
26455 USB - 26.455 MHz USB - Polish speaking stations
26535 AM - 26.535 MHz AM - YL dispatcher heard, taxi cab dispatch frequency 26.5350 MHz
26540 LSB - 26.540 MHz LSB - Spanish language
26555 LSB - 26.555 MHz LSB - Spanish language calling frequency, very busy
26575 AM - 26.575 MHz AM - Spanish language - Mexican trucker frequency
26585 AM - 26.585 MHz AM - Spanish language calling frequency and Mexican truckers
26595 AM - 26.595 MHz AM - Busy, Spanish
26625 AM - 26.625 MHz AM - Spanish language, radio checks
26635 FM - 26.635 MHz FM - POCSAG pager paging signals
26675 AM - 26.675 MHz AM - Spanish language, possibly taxi cab dispatcher
26695 FM - 26.695 MHz FM - Paging signals - nonstop POCSAG pager data signal
26700 FM - 26.700 MHz FM - POCSAG pager signals - various bandwidths
26705 AM - 26.705 MHz AM - Spanish language
26705 FM - 26.705 MHz FM - Pager - POCSAG signal bursts
26715 AM - 26.715 MHz AM - Spanish language calling frequency
26745 FM - 26.745 MHz FM - Paging signals - nonstop POCSAG pager data signal
26750 FM - 26.750 MHz FM - Pager - POCSAG signal bursts
26755 FM - 26.755 MHz FM - Paging signals - POCSAG bursts
26765 AM - 26.765 MHz AM - YL taxi dispatcher - active, good signal
26805 FM - 26.805 MHz FM - 26805 FM Club, very busy
26815 FM - 26.815 MHz FM - FM freebanders
26850 FM - 26.850 MHz FM - Paging signals - POCSAG pager bursts
26855 FM - 26.855 MHz FM - Weak FM signals
26865 FM - 26.865 MHz FM - German language
26885 AM - 26.885 MHz AM - Sounds like US truckers?
26885 FM - 26.885 MHz FM - German language
26900 FM - 26.900 MHz FM - Pager - very strong, very busy - POCSAG signals lots of them
26935 AM - 26.935 MHz AM - Spanish language chatter
26945 AM - 26.945 MHz AM - Taxi dispatcher - Spanish language
26950 FM - 26.950 MHz FM - POCSAG pager
26950 FM - 26.950 MHz FM - Data bursts - 4-5 kHz wide, frequent bursts
26952 USB 26.952 MHz USB - FSK bursts, very strong - center frequency 26953 kHz
26955 AM - 26.955 MHz AM - US stations, doing radio checks
26955 FM - 26.955 MHz FM - Data bursts
26955 AM - 26.955 MHz AM - Taxi dispatcher - Spanish language - Latin America



27445 AM - 27.445 MHz AM - Taxi dispatch lady, Spanish speaking YL - Mexican accent
27455 USB - 27.455 MHz USB - Spanish language calling frequency, very busy
27465 AM - 27.465 MHz AM - Italian big radios - Canale 45 - very good signals with some minor SSB QRM
27485 AM - 27.485 MHz AM - Taxi dispatcher, Spanish language, Latin America
27500 FM - 27.500 MHz FM - POCSAG pager paging signals
27505 AM - 27.505 MHz AM - Taxi dispatcher, Spanish language
27505 USB - 27.505 MHz USB - Portuguese
27510 FM - 27.510 MHz FM - POCSAG pager paging signals
27515 AM - 27.515 MHz AM - Taxi dispatch lady, previously monitored during last solar peak
27515 LSB - 27.515 MHz LSB - Caribbean Sea DX frequency, very busy
27530 USB - 27.530 MHz USB - Freebanders
27550 FM - 27.550 MHz FM -  POCSAG pager signals - paging bursts, various bandwidths
27555 USB - 27.555 MHz USB - Freeband calling frequency
27580 USB - 27.580 MHz USB - "7 Mike" "QRZ"
27600 FM - 27.600 MHz FM - POCSAG paging burst transmissions
27601 FM - 27.60125 MHz FM - UK FM CB Channel 1 - FM carrier
27610 USB - 27.610 MHz USB - French language, very active
27620 USB - 27.620 MHz USB - French language chatter
27621 FM - 27.62125 MHz FM - UK FM CB Channel 3 - active with heavy QRM
27625 USB - 27.625 MHz USB - freebanders
27630 USB - 27.630 MHz USB - 14CR200 - French stations having a QSO
27635 USB - 27.635 MHz USB - ROS digital mode, lots of signals
27640 USB - 27.640 MHz USB - heard "101" "Alpha Mike Alpha"
27650 FM - 27.650 MHz FM - POCSAG pager paging signals - 3-4 kHz and 8 kHz wide
27651 FM - 27.65125 MHz FM - UK FM CB Channel 6 - active
27661 FM - 27.66125 MHz FM - UK FM CB Channel 7
27665 USB - 27.665 MHz USB - very busy
27671 FM - 27.67125 MHz FM - UK FM CB Channel 8
27675 USB - 27.675 MHz USB - also very busy
27680 USB - 27.680 MHz USB - 1CI005 Italy working UNID station?  strong signals "105" Italian accent
27681 FM - 27.68125 MHz FM - UK FM CB Channel 9
27685 USB - 27.685 MHz USB - Italian language
27690 USB - 27.690 MHz USB - French language
27690 FM - 27.690 MHz FM - FM carrier signal on 27690.0
27691 FM - 27.69125 MHz FM - UK FM CB Channel 10 - also very active
27700 FM - 27.700 MHz FM - POCSAG pager signals - 8 kHz wide
27700 FM - 27.700 MHz FM - POCSAG pager signals - 10-12 kHz wide
27700 FM - 27.700 MHz FM - POCSAG paging burst transmissions, 3 kHz wide
27700 USB - 27.700 MHz USB - SSTV
27701 FM - 27.70125 MHz FM - UK FM CB Channel 11
27705 USB - 27.705 MHz USB - "Alpha Tango" - Italian stations, sounds like
27710 USB - 27.710 MHz USB - "Triple Zero" "7575, Mobile" 15ET101 and 2AT something something something
27725 FM - 27.725 MHz FM - Russian?
27731 FM - 27.73125 MHz FM - UK FM CB Channel 14 - busy
27745 USB - 27.745 MHz USB - Freebanders
27750 FM - 27.750 MHz - POCSAG pager signals - paging bursts
27755 AM - 27.755 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
27765 AM - 27.765 MHz AM - Taxi dispatcher - Spanish language - Mexican taxi cab
27775 AM - 27.775 MHz AM - Taxi dispatcher - Spanish language - Mexican taxi cab
27781 FM - 27.78125 MHz FM - UK FM CB Channel 19 - very active, lots of activity
27785 AM - 27.785 MHz AM - Taxi dispatcher, very heavy QRM from UK FM 27.781.25 MHz
27791 FM - 27.79125 MHz FM - UK FM CB Channel 20
27800 FM - 27.800 MHz FM - POCSAG pager signals - paging bursts, various bandwidths
27801 FM - 27.80125 MHz FM - UK FM CB Channel 21 - also very active
27815 AM - 27.815 MHz AM - Taxi dispatcher - Spanish language - Mexican taxi cab
27821 FM - 27.82125 MHz FM - UK FM CB Channel 23
27825 AM - 27.825 MHz AM - Taxi dispatcher - Spanish language
27831 FM - 27.83125 MHz FM - UK FM CB Channel 24 - very good signals
27841 FM - 27.84125 MHz FM - UK FM CB Channel 25 - talking about CB antenna whips
27845 AM - 27.845 MHz AM - Taxi dispatcher or other land mobile user
27850 FM - 27.850 MHz FM - POCSAG pager signals - various bandwidths POCSAG
27851 FM - 27.85125 MHz FM - UK FM CB Channel 26 - sporadic signals
27861 FM - 27.86125 MHz FM - UK FM CB Channel 27
27871 FM - 27.87125 MHz FM - UK FM CB Channel 28
27875 AM - 27.875 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
27881 FM - 27.88125 MHz FM - UK FM CB Channel 29
27885 FM - 27.885 MHz FM - POCSAG paging signals - POCSAG pager
27891 FM - 27.89125 MHz FM - UK FM CB Channel 30 - active
27900 FM - 27.900 MHz FM - POCSAG pager signals
27900 USB - 27.900 MHz USB - heard Scotland and other stations QSO
27901 FM - 27.90125 MHz FM - UK FM CB Channel 31
27911 FM - 27.91125 MHz FM - UK FM CB Channel 32
27915 AM - 27.915 MHz AM - Truckers or other land mobile users - American freebanders 27.9150 MHz
27921 FM - 27.92125 MHz FM - UK FM CB Channel 33 - very deep fades, then back up to full quieting
27931 FM - 27.93125 MHz FM - UK FM CB Channel 34
27935 FM - 27.935 MHz FM - Heavy Scottish accents
27941 FM - 27.94125 MHz FM - UK FM CB Channel 35 - unmodulated FM carrier
27961 FM - 27.96125 MHz FM - UK FM CB Channel 37
27965 FM - 27.965 MHz FM - UK stations, heavy Scottish accents
27971 FM - 27.97125 MHz FM - UK FM CB Channel 38
27975 AM - 27.975 MHz AM - Taxi dispatcher - Spanish language - Latin American taxi cab
27975 FM - 27.975 MHz FM - Scottish?  stations - similar to activity heard on 27.965 MHz FM and UK FM CB channels
27981 FM - 27.98125 MHz FM - UK FM CB Channel 39
27991 FM - 27.99125 MHz FM - UK FM CB Channel 40 - very busy

293

VHF/UHF Logs, including satellites and radiosondes / Asian Fishing Fleet Comms VHF Low 27.500 MHz - 39.475 MHz FM - VHF Low DX

« on: February 10, 2023, 1057 UTC »

Chinese fishery radio / Asian Dedicated FM
Fishing Boat Radiotelephone service going nuts this morning via UK receiver:

Just in the time frame between 1030 UTC and 1055 UTC: 

29.7750 MHz FM [CSQ] Asian fishery radio
29.8250 MHz FM [CSQ] Asian fishery radio
29.8875 MHz FM Russian language, I think
29.9250 MHz FM [CSQ] Asian fishery radio - extremely busy
29.9750 MHz FM [CSQ] Asian fishery radio
30.0000 MHz FM [CSQ] Asian fishery radio
30.0000 MHz FM Strong data signal - pager?
30.0250 MHz FM [CSQ] Asian fishery radio
30.0750 MHz FM [CSQ] Asian fishery radio
30.1000 MHz FM [CSQ] Asian fishery radio
30.1250 MHz FM [CSQ] Asian fishery radio
30.1500 MHz FM [CSQ] Asian fishery radio
30.2250 MHz FM [CSQ] Asian fishery radio
30.3000 MHz FM [CSQ] Asian fishery radio
30.3500 MHz FM [CSQ] Asian fishery radio
30.4500 MHz FM [CSQ] Asian fishery radio
30.4750 MHz FM [CSQ] Asian fishery radio
30.5000 MHz FM [CSQ] Asian fishery radio
30.5500 MHz FM [CSQ] Asian fishery radio
30.5625 MHz FM UNID traffic, Arabic?
30.6000 MHz FM [CSQ] Asian fishery radio
30.6250 MHz FM [CSQ] Asian fishery radio
30.6750 MHz FM [CSQ] Asian fishery radio
30.7750 MHz FM [CSQ] Asian fishery radio, very busy
30.8000 MHz FM [CSQ] Asian fishery radio, very busy
30.8125 MHz FM UNID voice traffic
30.8750 MHz FM [CSQ] Asian fishery radio
30.8950 MHz FM UNID language (30.895MHz is the frequency, double checked this)
30.9000 MHz FM Tail end of a FM voice transmission
30.9500 MHz FM [CSQ] Asian fishery radio
30.9625 MHz FM UNID voice traffic, Russian?
30.9750 MHz FM [CSQ] Asian fishery radio
31.0000 MHz FM [CSQ] Asian fishery radio, very busy
31.0050 MHz FM Polytone FSK data signal
31.0750 MHz FM [CSQ] Asian fishery radio
31.1000 MHz FM [CSQ] Asian fishery radio
31.1500 MHz FM [CSQ] Asian fishery radio, very busy good signals
31.2000 MHz FM [CSQ] Asian fishery radio
31.2750 MHz FM [CSQ] Asian fishery radio
31.3250 MHz FM [CSQ] French traffic signal control data
31.3250 MHz FM [CSQ] Asian fishery radio
31.4000 MHz FM [CSQ] Asian fishery radio
31.5000 MHz FM [CSQ] Asian fishery radio
31.6750 MHz FM [CSQ] Asian fishery radio
31.7000 MHz FM [CSQ] Asian fishery radio
31.7250 MHz FM [CSQ] UK POCSAG paging signals - hospital pagers
31.7450 MHz FM [CSQ] UK POCSAG paging signals - hospital pagers
31.7750 MHz FM [CSQ] UK POCSAG paging signals - hospital pagers
31.8000 MHz FM [CSQ] Asian fishery radio
31.9000 MHz FM [CSQ] Asian fishery radio
31.9750 MHz FM [CSQ] Asian fishery radio
32.0000 MHz FM [CSQ] Asian fishery radio
32.1000 MHz FM [CSQ] Asian fishery radio
32.1250 MHz FM [CSQ] Asian fishery radio
32.1750 MHz FM [CSQ] Asian fishery radio
32.2000 MHz FM [CSQ] Asian fishery radio
32.6750 MHz FM [CSQ] Asian fishery radio
33.1000 MHz FM [CSQ] Asian fishery radio
33.3250 MHz FM [CSQ] Asian fishery radio
33.4500 MHz FM [CSQ] Asian fishery radio
33.8500 MHz FM [CSQ] Asian fishery radio
34.0000 MHz FM Strong digital
34.0750 MHz FM [CSQ] Asian fishery radio


Radios sold out of China, but used worldwide.  480 channels, FM voice, regular simplex.  Carrier squelch CSQ.  No tone.  No CTCSS tone no PL tone no DCS / DPL.  DTMF/ANI and FSK based selective calling. 

27.5-39.5 MHz according to Chinese law.  Technically the last channel is 39.475 MHz. Radios display channel number only.   

Channel 001 is 27.5000 MHz FM [CSQ]
Channel 002 is 27.5250 MHz FM [CSQ]
Channel 480 is 39.4750 MHz FM [CSQ]

There are apparently variants on the market with switchable 12.5 kHz channel spacing instead of 25 kHz.  They’re advertised as 1000 channel radios, same 27.500 MHz to 39.500 MHz coverage…not sure how many of these are used in the 12.5 kHz mode.

Numerous other services, including an AM mode fishery radio service in Japan in the 35-40 MHz region. 

Others include the “DSB Fishery Radio” WSR-358 and WSR-388, along with Marine DSB Radiotelephone Radios, Marine CB Radios, etc.

DSB Radiotelephone coverages:
AM mode only

25.550 MHz to 30.500 MHz
25.550 MHz to 30.495 MHz
26.475 MHz to 27.275 MHz
26.470 MHz to 27.270 MHz
26.065 MHz to 28.755 MHz
26.760 MHz to 27.980 MHz

Marine CB Radiotelephone or Marine CB Radios Fishery Radios

AM mode and FM mode
or
AM, FM, USB, LSB

25.615 MHz to 30.105 MHz
25.615 MHz to 28.305 MHz
26.065 MHz to 28.755 MHz
25.165 MHz to 28.755 MHz
24.265 MHz to 29.655 MHz
26.515 MHz to 27.855 MHz

Note that 25615 - 30105 is a standard export CB radio band plan, as are 26065 - 28755, 24265-29655 and of course 26515 - 27855.

The “standard” AM and FM mode only Marine CB Radio coverage seems to be 26.065 MHz to 28.755 MHz.  For AM/FM/USB/LSB the coverage is either the same coverage, 25.615 MHz to 30.105 MHz or 24.265 MHz to 29.655 MHz. 

26.76 MHz to 27.98 MHz is the 1 watt double side band fishery radio service out of Japan.  1W DSB 27MHz Fishing Radio Japan 1-watt DSB fishery radiotelephone 26760 kHz 27980 kHz

294

10/11 meters / 11 Meters + 10 Meters + VHF Low Wide Open 8 Feb 2023

« on: February 08, 2023, 1643 UTC »

Yeah, so...25 MHz up to 6 meters is just going nuts. 

295

10/11 meters / Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels

« on: February 05, 2023, 1355 UTC »

Noted US stations running FM on:

26805 FM 26.805 MHz FM - no surprise there
27605 FM 27.605 MHz FM - also not a surprise
27805 FM 27.805 MHz FM - this seems to be a new one.

German stations heard running FM on 27.295 MHz FM CB Channel 29 FM.  I know US truckers have adopted this frequency for FM use, along with 26.845 MHz FM and 27.745 MHz FM.  Of course, Channel 30 FM and Channel 31 FM are also popular.

26.900 MHz and 26.950 MHz have both been home to lots and lots of paging activity recently.  26.905 MHz FM though, that might be a better call.  Same with some other frequencies in the 26.805 MHz to 26.895 MHz ballpark.  When the band isn't open to Europe, 26.900 MHz FM would absolutely work though.

296

VHF/UHF Logs, including satellites and radiosondes / VHF Low Activity (UK based receiver - G8JNJ RaspSDR) 1230 UTC 5 Feb 2023

« on: February 05, 2023, 1249 UTC »

Tuned in at 1230 UTC.  Focusing on signals above 29.7 MHz 29700 kHz only.

29750 FM 29.750 MHz FM - POCSAG paging signal bursts - European 29 MHz pager - unknown exact origin
29775 FM 29.775 MHz FM - Weak FM two-way land mobile signals 29.7750 FM - likely Asian Fishery Radio
29780 FM 29.780 MHz FM - FSK signal, continuous
29815 AM 29.815 MHz AM - French language, likely freebanders
29850 FM 29.850 MHz FM - POCSAG paging signal bursts - European 29 MHz pager - unknown exact origin
29875 FM 29.875 MHz FM - Asian Dedicated fishery radio - 27.500 MHz - 39.475 MHz [25 kHz steps] FM mode, CSQ
29900 FM 29.900 MHz FM - POCSAG paging signals - very strong (S9+10db at points)
29992 FM 29.992 MHz FM - "Chirper" lowest frequency -8 kHz from 30.000.0 MHz 30000.0 kHz
29995 FM 29.995 MHz FM - Key ups, short burst duration signals
30000 FM 30.000 MHz FM - "Chirper" FSK-like signal, rapidily switching between -8 and +8 kHz and center freq 
30008 FM 30.008 MHz FM - "Chirper" lowest frequency -8 kHz from 30.000.0 MHz 30000.0 kHz
30020 FM 30.020 MHz FM - CW ID Morse ID - Canadian hospital on-site paging frequency
30100 FM 30.100 MHz FM - POCSAG paging signal bursts
30250 FM 30.250 MHz FM - FM-CW Over The Horizon Radar (OTH-R) 60 kHz wide - 30.25 MHz center freq.
30300 FM 30.300 MHz FM - Asian Fishery Radio [Chinese Fishing Fleet Radio 27.5 MHz - 39.475 MHz FM, 25 kHz steps]
30775 FM 30.775 MHz FM - Asian Fishery Radio - 30.7750 FM [CSQ] No Tone FM Simplex
30900 FM 30.900 MHz FM - Asian Fishery Radio - 30.9000 FM [CSQ] No Tone FM Simplex
31150 FM 31.150 MHz FM - POCSAG paging signals, good copy - Greece or UK pager 31.15 MHz
31280 FM 31.280 MHz FM - US land mobile radio (Part 90) business radio, taxi dispatcher?
31325 FM 31.325 MHz FM - French traffic signal traffic control data link, multi-tone, tunable in AM, FM, USB or LSB
31725 FM 31.725 MHz FM - POCSAG pager - UK on site hospital paging systems
31750 FM 31.750 MHz FM - POCSAG pager - UK on site hospital paging systems 
31775 FM 31.775 MHz FM - POCSAG pager - UK on site hospital paging systems
31975 FM 31.975 MHz FM - French traffic signal traffic control data link, multi-tone, tunable in AM, FM, USB or LSB\
32247 FM 32.247 MHz FM - Very strong digital signal, 6 kHz wide - tunable on 32.245 MHz and 32.250 MHz
32275 FM 32.275 MHz FM - Digital signal - appears to be encrypted military comms (25 kHz wide)

297

VHF/UHF Logs, including satellites and radiosondes / VHF Low Activity (UK based receiver) 1130 UTC 30 Jan 2023

« on: January 30, 2023, 1205 UTC »

11m activity (and some Russian taxi cabs operating in 10 meters) posted in a different thread in the 11m/10m forum


29.7 MHz and up:


11m Activity (UK based receiver) 1130 UTC 30 Jan 2023

29775 FM - 29.775 MHz FM - Asian language - fishery radio comms (likely)
29800 FM - 29.800 MHz FM - POCSAG paging signals - probable European source
29875 FM - 29.875 MHz FM - Asian fishery radio 29.875MHz FM
29887.5 FM - 29.8875 MHz FM - Russian language chatter (29.8875 MHz FM, not 29.885 MHz FM)
30000 FM - 30.000 MHz FM - Open carrier, previously noted on this frequency, UNID user
30100 FM - 30.100 MHz FM - POCSAG paging, sporadic
30337.5 FM - 30.3375 MHz FM - UNID user, sounds like Russian language
30450 FM - 30.450 MHz FM - US Military comms, 20-25 kHz wide signal nice strong FM
30550 FM - 30.550 MHz FM - Likely encrypted military comms, going by freq., two-way radio like frequency of comms
31025 FM - 31.025 MHz FM - Military comms, in the clear, switched to same mode noted on 30.55 MHz
31100 FM - 31.100 MHz FM - Fishery radio chatter - Asian fishing radio 27.5 MHz to 39.475 MHz 25kHz steps FM
31325 FM - 31.325 MHz FM - French traffic control signal data (poly tone signal, tunable in SSB)
31575 FM - 31.575 MHz FM - Open carrier - FM signal "chirping" rapidly (up and down 1.3 kHz very rapidly)
31687.5 FM - 31.6875 MHz FM - French traffic control signal data (poly tone signal, tunable in SSB)
31725 FM - 31.725 MHz FM - POCSAG Paging - UK Hospital pagers
31750 FM - 31.750 MHz FM - POCSAG Paging - UK Hospital pagers
31775 FM - 31.775 MHz FM - POCSAG Paging - UK Hospital pagers
31975 FM - 31.975 MHz FM - French traffic control signal data (poly tone signal, tunable in SSB)
32050 FM - 32.050 MHz FM - Encrypted comms (digital mode) - similar to 30.5500 MHz FM
32325 FM - 32.325 MHz FM - Very similar "chirp" signal to the one heard on 31.5750 MHz
34712.5 FM - 34.7125 MHz FM - 34.7127 MHz FSK signal - Waverider buoy (according to SDR owner)
34723.5 FM - 34.7325 MHz FM - 34.7327 MHz FSK signal
35000 FM - 35.000 MHz FM - UNID language, possibly Asian fishery radio

298

10/11 meters / 11m Activity (UK based receiver) 1130 UTC 30 Jan 2023

« on: January 30, 2023, 1146 UTC »

Via G8JNJ RaspSDR:


27450 FM - 27.450 MHz FM - FM Carrier - low power data link, telemetry and paging frequency
27535 FM - 27.535 MHz FM -  Taxi dispatcher - YL - Russian taxi company land mobile radio
27600 USB - 27.600 MHz USB -  116AT101 calling CQ DX
27601 FM - 27.60125 MHz FM - UK FM CB Channel 1 - active
27605 FM - 27.605 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio
27625 FM - 27.625 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio
27745 FM - 27.745 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio
27751 FM - 27.75125 MHz FM - UK FM CB Channel 16 - active
27760 FM - 27.760 MHz FM - Strong data signal - POCSAG pager 12 kHz wide
27765 AM - 27.765 MHz AM - Italian language
27781 FM - 27.78125 MHz FM - UK FM CB Channel 19 - very busy
27791 FM - 27.79125 MHz FM - UK FM CB Channel 20
27815 FM - 27.815 MHz FM - Very strong Russian taxi dispatch comms - full quieting!
27821 FM - 27.82125 MHz FM - UK FM CB Channel 23
27815 FM - 27.815 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio
27835 FM - 27.835 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio
27845 FM - 27.845 MHz FM - Strong POCSAG paging signal
27855 FM - 27.855 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio
27861 FM - 27.86125 MHz FM - UK FM CB Channel 27 - busy, heavy QRM from Russian taxis on 27.855 MHz FM
27885 FM - 27.885 MHz FM - POCSAG paging, various bandwidths, very strong at points
27900 FM - 27.900 MHz FM - Pager - POCSAG
27925 FM - 27.925 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio
27940 FM - 27.940 MHz FM - Open carrier
27941 FM - 27.94125 MHz FM - UK FM CB Channel 35 - activity, mixing with the FM signal on 27.94 MHz
27951 FM - 27.95125 MHz FM - UK FM CB Channel 36 - open carrier?
27955 FM - 27.955 MHz FM - Taxi dispatcher
27960 FM - 27.960 MHz FM - Very strong FSK data bursts
27971 FM - 27.971 MHz FM - UK FM CB Radio Channel 38
27975 FM - 27.975 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio
27995 FM - 27.995 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio
28055 FM - 28.055 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio taxis in 28 MHz
28105 FM - 28.105 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio taxis on 10m
28255 FM - 28.255 MHz FM - Taxi dispatcher - YL - Russian taxi company land mobile radio taxis in 28 MHz

I will post the above 29.7 MHz logs in the VHF/UHF monitoring forum

299

10/11 meters / Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels

« on: January 26, 2023, 1643 UTC »

26.900 MHz is home to paging systems in Europe, and the frequency is often busy with full-scale POCSAG signals.

I know 26.805 MHz FM is quite popular.  26.905 MHz FM would be a decent choice too.  I've seen some evidence that 27.605 MHz FM and 27.805 MHz FM are both active in the USA.

Today I monitored activity on CB channel 29 FM - 27.295 MHz FM and the other day, in addition to wall-to-wall activity on the UK FM CB channels, strong FM activity (from Europe and the UK) on 27.125 MHz FM (CB Channel 14 FM). 

300

10/11 meters / 27.295 FM - CB Channel 29 - German FM CB Chatter 26 Jan 2023

« on: January 26, 2023, 1640 UTC »

Heard at approx. 0830 local time (east coast of the USA) using a handheld receiver (25-1300 MHz AM/NFM scanner) and a 27 MHz telescopic (base-loaded) CB antenna. 

All CB Channels active, but noted FM activity on 27295.0 27,295 27.295 MHz FM - strong German language chatter

Also basically all the paging frequencies busy, with 26.950 MHz and 26.900 MHz coming in full scale at points with numerous POCSAG signals on them.