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16

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)

17

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

18

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

19

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.

20

VHF/UHF Logs, including satellites and radiosondes / VHF Low Band Logs - 26 Jan 2023 - Via G8JNJ SDR

« on: January 26, 2023, 1638 UTC »

30.0000 MHz FM - UNID African language comms
30.0200 MHz FM - POCSAG paging - known Canadian hospital pager (CW IDs noted)
30.2200 MHz FM - POCSAG paging - known Canadian hospital pager (CW IDs noted)
30.3000 MHz FM - Asian fishery radio 30.300 MHz CSQ fishing boat radio chatter
30.4500 MHz FM - US military range control - likely Fort Hood 30.450 MHz FM
30.6400 MHz FM - US land mobile (business) - bus dispatcher
30.8400 MHz FM - French language, possibly Canadian land mobile comms
31.0000 MHz FM - Spanish language - taxi dispatcher
31.0000 MHz FM - Asian fishery radio 31.000 MHz CSQ fishing boat radio chatter
31.1000 MHz FM - Asian fishery radio 31.100 MHz CSQ fishing boat radio chatter
31.1200 MHz FM - US land mobile bus dispatch - Van Pool Transportation
31.7250 MHz FM - UK on-site hospital paging - POCSAG
31.7500 MHz FM - UK on-site hospital paging - POCSAG
31.7750 MHz FM - UK on-site hospital paging - POCSAG
34.5875 MHz FM - French land mobile radio system, with multi-tone SELCALL
34.7100 MHz FM - Datawell Waverider in FM mode
34.7120 MHz USB - Datawell Waverider data bouy FSK signal - 34712.7 center frequency
34.7125 MHz FM - Datawell Waverider in FM mode
34.7150 MHz FM - Datawell Waverider in FM mode
34.7625 MHz FM - French land mobile radio system, with multi-tone SELCALL

21

10/11 meters / 11m 25-28 MHz Data Links, Pagers, Telemetry, Data Bursts Pagers - Europe

« on: January 20, 2023, 1201 UTC »

1120 UTC - 1220 local (Warsaw) via remote SDR in Poland:

Data signals, pagers, paging signals POCSAG FSK bursts and other signals (European origin).  Confirmed active 2023.  Band opening VHF DX early warning 10 meter band open 11 meter band opening


26150 FM 26.150 MHz 26,150 Paging - UK hospital pagers (POCSAG)
26225 FM 26.225 MHz 26,225 Pagers - mainland Europe
26200 FM 26.200 MHz 26,200 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26250 FM 26.250 MHz 26,250 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26300 FM 26.300 MHz 26,300 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26350 FM 26.350 MHz 26,350 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26400 FM 26.400 MHz 26,400 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26450 FM 26.450 MHz 26,450 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26500 FM 26.500 MHz 26,500 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26550 FM 26.550 MHz 26,550 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26600 FM 26.600 MHz 26,600 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26630 FM 26.630 MHz 26,630 Pagers - European hospital and on-site paging systems POCSAG 26.63 MHz
26635 FM 26.635 MHz 26,635 Paging - UK hospital pagers (POCSAG), on-site pagers (EU)
26650 FM 26.650 MHz 26,650 Pagers - European hospital pagers, UK hospital paging - POCSAG (narrow and wide) bursts
26695 FM 26.695 MHz 26,695 Pagers - POCSAG and other modes paging, offset frequency for 26.7 MHz
26700 FM 26.700 MHz 26,700 Pagers - POCSAG and other modes paging - Widely used, including in UK
26705 FM 26.705 MHz 26,705 Pagers - POCSAG and other modes paging, offset frequency for 26.7 MHz
26735 USB 26.735 MHz 26,735 FT8 weak signal frequency
26735 FM 26.735 MHz 26,735 ROS and packet radio frequency
26745 FM 26.745 MHz 26,745 Pagers - POCSAG and other modes paging, offset frequency for 26.75 MHz
26750 FM 26.750 MHz 26,750 Pagers - POCSAG and other modes paging - Widely used, including in UK
26755 FM 26.755 MHz 26,755 Pagers - POCSAG and other modes paging, offset frequency for 26.75 MHz
26850 FM 26.850 MHz 26,850 Data links, paging systems and other uses, mainland Europe
26865 FM 26.865 MHz 26,865 Pagers - POCSAG and other modes paging - Widely used, including in UK
26895 FM 26.895 MHz 26,895 Data link, data bursts - MFSK and FSK signals 6-7 kHz wide
26895 FM 26.895 MHz 26,895 Pagers - POCSAG and other modes paging
26900 FM 26.900 MHz 26,900 Paging frequency, hospitals, on-site pager systems (low and medium power)
26935 FM 26.935 MHz 26,935 Pagers - POCSAG, other modes - on-site pagers - UK, Europe
26945 FM 26.945 MHz 26,945 FSK and MFSK signals 2w data link, telemetry, wireless control (Russia)
26950 FM 26.950 MHz 26,950 Paging systems, numerous transmitters on this frequency (Europe)
26955 FM 26.955 MHz 26,955 Data link, on-site pagers - fixed service
26960 FM 26.960 MHz 26,960 FSK and MFSK signals, nearly constant - 2 watt central control, alarm control, telemetry (Russia)
26960 FM 26.960 MHz 26,960 Various other data signals (often on top of each other)
26995 FM 26.995 MHz 26,995 Various data signals - including POCSAG pager signals
26995 FM 26.995 MHz 26,995 Narrow band FSK bursts (1.5 kHz wide)
27003 FM 26.003 MHz 27.003 FSK data bursts/telemetry signals mixing in with the pager
27003 FM 27.003 MHz 27,003 Pager - POCSAG - 10 kHz wide paging signal - offset frequency, 27.002 27,002
27007 FM 27.007 MHz 27,007 Pager - POCSAG - 10 kHz wide paging signal
27045 FM 27.045 MHz 27,045 Data links, SRD frequency (radio control, etc.)
27045 FM 27.045 MHz 27,045 MFSK data signals - very similar to signals noted on 26.945 MHz and 26.960 MHz
27080 FM 27.080 MHz 27,080 MFSK data bursts, 6.5 to 7 kHz wide, very similar to signals heard on the RCRS freqs - F2D emission
27095 FM 27.095 MHz 27,095 Data links, SRD frequency
27145 FM 27.145 MHz 27,145 MFSK data bursts - 4-5 kHz wide MFSK signals, multiple-second long transmissions
27195 FM 27.195 MHz 27,195 Data links, SRD frequency
27195 FM 27.195 MHz 27,195 FSK and MFSK data bursts, wireless control and telemetry
27200 FM 27.200 MHz 27,200 POCSAG paging (10-12 kHz wide)
27230 FM 27.230 MHz 27,230 FSK data bursts
27235 FM 27.235 MHz 27,235 ROS and packet radio frequency (CB Channel 24)
27245 USB 27.245 MHz 27,245 FT8 weak signal frequency (CB Channel 24)
27245 FM 27.245 MHz 27,245 ROS and packet radio frequency (CB Channel 25)
27250 FM 27.250 MHz 27,250 Pager - POCSAG and other paging modes
27255 USB 27.255 MHz 27,255 FT8 weak signal frequency (CB Channel 23)
27255 FM 27.255 MHz 27,255 ROS and packet radio frequency (CB Channel 23)
27255 FM 27.255 MHz 27,255 Data links, FSK and MFSK
27255 FM 27.255 MHz 27,255 Pager - POCSAG paging signals
27350 FM 27.350 MHz 27,350 POCSAG paging frequency, pagers 27.35 MHz - Europe
27360 FM 27.360 MHz 27,360 POCSAG paging frequency, pagers 27.36 MHz - Europe
27450 FM 27.450 MHz 27,450 Paging system, transmits unmodulated FM carrier when idle, great 11m beacon 27MHz beacon
27450 FM 27.450 MHz 27,450 Paging system, FM carriers (when idle) 27.450.2 MHz, also 27.450.17 MHz 27.450.18 MHz
27500 FM 27.500 MHz 27,500 Pagers - POCSAG (often offset, see below)
27505 FM 27.505 MHz 27,505 Pagers - POCSAG and other modes paging, offset frequency for 27.5 MHz
27510 FM 27.510 MHz 27,510 Pagers - POCSAG and other modes paging, offset frequency for 27.5 MHz
27550 FM 27.550 MHz 27,550 Paging systems, numerous transmitters on this frequency (Europe)
27600 FM 27.600 MHz 27,600 Paging systems, numerous transmitters on this frequency (Europe)
27620 FM 27.620 MHz 27,620 Paging signals - 10-12 kHz wide POCSAG - somewhere in Europe
27635 FM 27.635 MHz 27,635 ROS and packet frequency (also: 27.635 USB 27,635 USB)
27650 FM 27.650 MHz 27,650 Paging systems - POCSAG - noted during European band openings
27700 FM 27.700 MHz 27,700 Paging systems - POCSAG - noted during European band openings
27750 FM 27.750 MHz 27,750 Paging systems - POCSAG - noted during European band openings
27800 FM 27.800 MHz 27,800 Paging systems - POCSAG - noted during European band openings
27845 FM 27.845 MHz 27,845 POCSAG signals - confirmed still active (offset for 27.850 MHz)
27847 FM 27.847 MHz 27,847 Paging systems, offset frequency (see 27.845 MHz 27.850 MHz)
27848 FM 27.848 MHz 27,848 Paging systems, offset frequency (see 27.845 MHz 27.850 MHz)
27850 FM 27.800 MHz 27,800 Paging systems - POCSAG - noted during European band openings
27900 FM 27.800 MHz 27,800 Paging systems - POCSAG - noted during European band openings
27950 FM 27.800 MHz 27,800 Paging systems - POCSAG - noted during European band openings
29750 FM 29.750 MHz 29,750 Paging systems - POCSAG - noted during European band openings
29800 FM 29.800 MHz 29,800 Paging systems - POCSAG - noted during European band openings
29850 FM 29.850 MHz 29,850 Paging systems - POCSAG - noted during European band openings
29900 FM 29.900 MHz 29,900 Paging systems - POCSAG - noted during European band openings
29950 FM 29.950 MHz 29,950 Paging systems - POCSAG - noted during European band openings

22

VHF/UHF Logs, including satellites and radiosondes / 36.600 MHz FM “YSD” Morse Beacon Canadian Forces Base Suffield

« on: January 17, 2023, 0017 UTC »

VHF low band has been going nuts the past weeks. 

This afternoon I was tuning around and on 36.6000 FM - 36.600 MHz FM I heard a Morse ID “YSD” followed by a long tone burst.  Sounded like a VOR or aircraft navigation beacon like a NDB.  36.600MHz YSD Radio Beacon - 36.6 YSD Beacon CYSD CFB Suffield Heliport, Alberta Canada at Canadian Forces Base Suffield.  This is a first for me. 

1872 miles (3013 km) from receiver location in Richmond Virginia, USA. 

Transmitter coordinates GPS lat/long

N50°16.00' / W111°11.00'

50.276359,-111.180189

I wanted to post this here in case other folks come across this recorded CW and tone on 36.600 MHz FM while tuning around the bands.  It as a Morse recording on a FM signal, not AM like most VHF aircraft beacons…also the frequency choice is within the military 30-88 MHz band, which makes sense for that application (and makes sense for it to be in FM mode). 

23

VHF/UHF Logs, including satellites and radiosondes / VHF Low 29.7 MHz - 32 MHz Activity Via N1NTE KiwiSDR 13 Jan 2023

« on: January 13, 2023, 1415 UTC »

Tuned in just after 1400 UTC (0900 local) - logs are for roughly 1402 UTC to 1415 UTC. 

29.7500 FM 29.750 MHz FM - POCSAG paging - European pagers 29 MHz band
29.8500 FM 29.850 MHz FM - POCSAG paging - European pagers 29 MHz band
30.0000 FM 30.000 MHz FM - POCSAG paging - unknown source (likely Europe)
30.3750 FM 30.375 MHz FM - Weak FM signal, sounds like two-way radio of some kind, could be military or Asian fishery radio
30.4500 FM 30.450 MHz FM - US Military - Fort Hood, TX Range Control, very good signal [150 Hz tone]
30.5500 FM 30.550 MHz FM - Asian fishery radio comms - informal CB-like chatter 30.55 FM
30.6400 FM 30.640 MHz FM - US land mobile radio comms - business, sound like construction comms
30.7800 FM 30.780 MHz FM - Spanish taxi cab dispatch - YL dispatcher
30.8750 FM 30.875 MHz FM - US Military, heard "control" "fox mike"
30.9000 FM 30.900 MHz FM - Asian fishery radio comms - active frequency 30.900 MHz [CSQ]
31.1000 FM 31.100 MHz FM - Spanish language, sounds like a taxi dispatch - YL taxi dispatcher
31.1200 FM 31.120 MHz FM - [Local] Van Pool Transportation - bus/van dispatcher, very good signals
31.3250 FM 31.325 MHz FM - Data signals - French traffic signal control system (also on 31.6875 MHz and 31.975 MHz)
31.6800 FM 31.680 MHz FM - Spanish taxi cab dispatch - YL dispatcher, good signals
31.9000 FM 31.900 MHz FM - Asian fishery radio comms - fishery radio 27.500 MHz - 39.475 MHz FM (25 kHz steps, 480 channels)


1635 UTC - 1648 UTC

29.7100 FM 29.710 MHz FM - FM voice comms, also a dead carrier for a bit - also a legal business radio frequency
29.7500 FM 29.750 MHz FM - POCSAG pager signals - European (I think)
29.7900 FM 29.790 MHz FM - FM voice comms, this is a US business frequency 29.79 FM
29.9000 FM 29.900 MHz FM - POCSAG pager signals, fading in and out
30.0200 FM 30.020 MHz FM - POCSAG paging - Canadian hospital paging - Canada paging 30.020 MHz
30.4500 FM 30.450 MHz FM - US Military - Fort Hood Range Control 30.45 FM
30.5500 FM 30.550 MHz FM - Asian fishery radio 30.55 FM
30.5800 FM 30.580 MHz FM - US business land mobile radio - construction site comms, trucks
30.6400 FM 30.640 MHz FM - US business land mobile, bus or taxi dispatcher?
30.7600 FM 30.760 MHz FM - US business land mobile, construction
30.7750 FM 30.775 MHz FM - Asian fishery radio chatter - fishery radio CB-like informal comms
30.8000 FM 30.800 MHz FM - Very short duration FM signal - could be military, land mobile or fishing fleet radio
30.9000 FM 30.900 MHz FM - Asian fishery radio, very busy, some signals full scale full quieting 30.90 MHz FM 30,900 FM
30.9750 FM 30.975 MHz FM - Asian fishery radio chatter, some with very strong signals - can hear engine in background
31.1000 FM 31.100 MHz FM - Asian fishery radio comms - multiple signals
31.1200 FM 31.120 MHz FM - [Local] Van Pool Transportation - bus/van dispatcher, very good signals
31.2500 FM 31.250 MHz FM - Weak FM signal, could be military or fishing fleet comms (both use 25 kHz channel steps)
31.3750 FM 31.375 MHz FM - Data bursts (poly tones, MFSK data - traffic signal control radio link - France)
31.9000 FM 31.900 MHz FM - Asian fishery radio chatter - another busy frequency

24

10/11 meters / 11m Band Activity 13 JAN 2023

« on: January 13, 2023, 1403 UTC »

The band is waking up - this is just over the past 7-8 minutes (via the W3HFU KiwiSDR).  Band opening to Europe and Latin America


26035 AM 26.035 MHz AM - Taxi dispatch (Spanish) YL dispatcher
26150 FM 26.150 MHz FM - POCSAG paging signals - European or UK pager 26.15 MHz
26155 AM 26.155 MHz AM - Taxi dispatch (Spanish) YL dispatcher
26285 USB 26.285 MHz USB - 11 meter freebander SSB calling DX CQ DX (alternate frequency to 27.555 MHz USB)
26305 AM 26.305 MHz AM - Spanish speaking stations, likely land mobile or free band CBers
26335 AM 26.335 MHz AM - Taxi dispatch (Spanish) YL dispatcher
26450 FM 26.450 MHz FM - POCSAG paging signals - Euro and/or UK paging frequency 26 MHz band
26500 FM 26.500 MHz FM - POCSAG paging signals - bursts
26515 AM 26.515 MHz AM - US stations, sounds like truckers, hunters or other land mobile users
26540 LSB 26.540 MHz LSB - Spanish language 11m DXers, QSY'ed from 26.555 MHz LSB
26550 FM 26.550 MHz FM - POCSAG paging signals - bursts
26555 LSB 26.555 MHz LSB - 11m calling frequency (Latin America) - busy
26570 FM 26.570 MHz FM - Very strong, ~18 kHz wide POCSAG signals
26635 FM 26.635 MHz FM - POCSAG paging signals - nearly constant signal
26650 FM 26.650 MHz FM - POCSAG paging signals - bursts
26655 AM 26.655 MHz AM - Taxi dispatch (Spanish) YL dispatcher
26675 AM 26.675 MHz AM - Spanish language
26695 FM 26.695 MHz FM - POCSAG paging signals - constant pager bursts
26700 FM 26.700 MHz FM - POCSAG paging signals - constant pager POCSAG signal
26705 AM 26.705 MHz AM - Spanish - Puerto Rico and other locations heard
26745 FM 26.745 MHz FM - POCSAG paging signals - constant pager POCSAG signal - EU/UK
26750 FM 26.750 MHz FM - POCSAG paging signals - European / UK pager frequency
26755 AM 26.755 MHz AM - Spanish language, possibly taxi dispatcher
26765 AM 26.765 MHz AM - Taxi dispatch (Spanish) YL dispatcher very strong
26800 FM 26.800 MHz FM - POCSAG pager paging bursts 26.800 MHz pager
26850 FM 26.850 MHz FM - POCSAG pager paging bursts 26.850 MHz pager
26855 AM 26.855 MHz AM - UNID language, lots of QRM
26900 FM 26.900 MHz FM - POCSAG pager paging bursts 26.900 MHz pager
26900 FM 26.900 MHz FM - FSK data signals - narrower band (not POCSAG, but on the same frequency)
26915 AM 26.915 MHz AM - US stations, free band calling frequency
26945 FM 26.945 MHz FM - Data bursts
26955 AM 26.955 MHz AM - Somebody doing radio checks

25

VHF/UHF Logs, including satellites and radiosondes / VHF Low 29.7 MHz - 32 MHz Activity Via N1NTE KiwiSDR 12 Jan 2023

« on: January 12, 2023, 1927 UTC »

Some VHF low band activity this afternoon:

29.950 MHz FM - POCSAG paging signal - European paging frequency
30.000 MHz FM - US military comms, extended unmodulated FM carrier signals (around 1923 UTC) too
30.020 MHz FM - POCSAG paging signal - this is a confirmed Canadian hospital paging frequency 30.0200 FM
30.300 MHz FM - Asian fishery radio comms 30.30 FM 30.3000 MHz FM fishery radio
30.450 MHz FM - US military comms Fort Hood, Texas Range Control 30.4500 FM [150.0 Hz]
30.525 MHz FM - Weak FM voice signals, either military or fishery radio chatter
30.550 MHz FM - Asian fishery radio comms 30.55 FM 30.5500 MHz FM fishery radio
30.640 MHz FM - UNID Business User, US stations, English language 30.6400 FM
30.640 MHz FM - Spanish language taxi dispatch
31.000 MHz FM - Business land mobile comms, southern US accents 31.0000 FM 31.000 FM
31.120 MHz FM - Local business land mobile comms - school bus - van pool transportation dispatcher 31.1200 FM
31.325 MHz FM - Data signal - sounds sort of like ROS mode - French traffic signal control data radio link
31.350 MHz FM - US military comms, 31.35 FM - heavy fading
31.520 MHz FM - Business land mobile user, Spanish language, likely taxi cab dispatcher 31.5200 FM
31.675 MHz FM - Asian fishery radio comms Asian language chatter 31.6750 FM fishery radio

26

VHF/UHF Logs, including satellites and radiosondes / French Traffic Signal Control 31.325 MHz 31.6875 MHz and 31.975 MHz Heard In USA

« on: January 12, 2023, 1652 UTC »

I’ve managed to catch a polytone signal (sounds a lot like ROS) on 31.325 and 31.975. 

Apparently these are traffic signal (traffic light) control signals from France. Very low power.  Pretty decent catch during VHF low band opening. 

27

VHF/UHF Logs, including satellites and radiosondes / 32.180 MHz 77.0 Hz 32.1800 FM 77.0Hz - Costa Rica Taxi Cab Dispatch

« on: January 12, 2023, 1541 UTC »

Confirmed via the great folks at the RadioReference skip/tropospheric ducting forum - I am now able to confirm a signal that I'm hearing every time the band is open - 32.180 MHz FM with 77.0 Hz CTCSS.  Spanish language taxi dispatch lady YL dispatcher.


32.1800 MHz FM - 77.0 Hz - Alajuela, Costa Rica Taxi Dispatch - confirmed use
32.1800 MHz FM - 141.3 Hz - Alajuela, Costa Rica Taxi Dispatch - confirmed use

Also 31.2000 MHz FM - 203.5 Hz - Spanish speaking taxi dispatcher - apparently this frequency/tone/user has been logged since at least 1988.  31.200 MHz FM 203.5Hz is still active, I last heard it myself a couple days ago - the same time that 32.180 MHz was coming in very strongly and the 27.5-39.5 MHz Dedicated Fisheries Radio VHF low fishing fleet chatter out of Asia was coming in on 29.775 MHz FM, 30.300 MHz FM, 30.775 MHz FM, 30.900 MHz FM, 31.100 MHz FM, 31.800 MHz FM and other frequencies. 

I did some more searching, and a lot of folks have monitored these comms, including on 29.875 MHz FM, and numerous additional frequencies in the 30-35 MHz portion especially, all with the 25 kHz channel steps, and never with a CTCSS or DCS tone/code.

28

10/11 meters / 26.765 MHz AM and 27.755 MHz AM Taxi Dispatch - Matamoros Mexico

« on: January 12, 2023, 1535 UTC »

26765 AM - 26.765 MHz AM is coming in almost daily now, same with 27755 AM - 27.755 MHz AM.  Both of these are confirmed taxi dispatch frequencies for Matamoros Mexico.

Also frequencies

26905 AM - 26.905 MHz AM - Taxi dispatch - Mexico City (Mexico, D.F.)
27765 AM - 27.765 MHz AM - Taxi dispatch - Mexico City (Mexico, D.F.)
27775 AM - 27.775 MHz AM - Taxi dispatch - Mexico City (Mexico, D.F.)
27785 AM - 27.785 MHz AM - Taxi dispatch - Mexico City (Mexico, D.F.)
27815 AM - 27.815 MHz AM - Taxi dispatch - Mexico City (Mexico, D.F.)

Among many others, I'm sure.  27.785 MHz is an interesting one, since it's only 3.75 kHz away from UK FM CB channel 19, which is 27.78125 MHz (or 27.781 MHz, or 27.781.25 MHz or 27781 FM 27781.25 FM...).  The other day I actually heard the taxi dispatch lady on 27.785 MHz AM mixing with UK FM CB signals on 27.781 MHz FM! 

29

10/11 meters / 11m Band Activity 30 DEC 2022

« on: December 30, 2022, 1311 UTC »

Checking the eastern and central European SDRs this morning, along with East Coast USA SDRs, looks like Latin American chatter is already starting to pop up on the usual in-band channels.

On Polish and German SDRs, noting POCSAG pager activity on 26.500 MHz, 26.550 MHz, 26.600 MHz, 26.650 MHz, 26.695 MHz, 26.700 MHz, 26.745 MHz, 26.750 MHz, 26.800 MHz, 26.900 MHz, 26.940 MHz, 26.945 MHz, 26.950 MHz, 26.955 MHz, 27.300 MHz, 27.350 MHz, 27.450 MHz and 27.845 MHz and offset frequency 27.847 MHz / 27.848 MHz as well as 27.850 MHz.

30

10/11 meters / 11m Band Activity 29 DEC 2022

« on: December 29, 2022, 1325 UTC »

Noting some FM voice on 27275 (CB Channel 27) and 27295 (CB Channel 29).

Also the usual Latin American frequencies are starting to light up, including


26525 LSB 26.525 MHz LSB - alternate frequency (likely stations that QSY'ed from 26.555 LSB)
26555 LSB 26.555 MHz LSB - SSB calling (low channels)
26585 AM 26.585 MHz AM - Mexico
27065 AM 27.065 MHz AM - Very big signals (CB Channel 9)
27455 USB 27.455 MHz USB - SSB calling (high channels)

Some very faint POCSAG paging signals noted on 26.695 MHz. 

The usual FSK bursts on 27.255 MHz RCRS channel / CB Channel 23

Nothing on 27.195 (yet) but I imagine the MFSK multi-frequency data signal will show up there as well.