We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

Author Topic: VHF Low Activity (UK based receiver - G8JNJ RaspSDR) 1230 UTC 5 Feb 2023  (Read 526 times)

Offline R4002

  • DXing Phenomena
  • *******
  • Posts: 3005
    • View Profile
    • R4002 - YouTube Videos
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)
U.S. East Coast, various HF/VHF/UHF radios/transceivers/scanners/receivers - land mobile system operator - focus on VHF/UHF and 11m