HFU HF Underground
Loggings => VHF/UHF Logs, including satellites and radiosondes => Topic started by: R4002 on February 17, 2023, 1228 UTC
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30-40 MHz via G8JNJ SDR - Approx 1230 UTC to 1400 UTC
29.7250 MHz FM - Fishing fleet radio chatter Asian fishery radio 29.725 MHz FM [CSQ]
29.7500 MHz FM - Pager - POCSAG paging bursts 29.75 MHz POCSAG pager
29.7750 MHz FM - Fishing fleet radio chatter Asian fishery radio 29.775 MHz FM [CSQ]
29.8000 MHz FM - Asian fishing fleet comms mixing with POCSAG bursts pager QRM 29.800 MHz FM [CSQ]
29.8000 MHz FM - Pager - POCSAG paging bursts 29.8 MHz POCSAG pager
29.8250 MHz FM - Fishing fleet radio chatter Asian fishery radio 29.825 MHz FM [CSQ]
29.8375 MHz FM - Russian language chatter
29.8500 MHz FM - Pager - POCSAG paging bursts 29.85 MHz POCSAG pager
29.8650 MHz FM - Strong FSK signal
29.8750 MHz FM - Fishing fleet radio chatter Asian fishery radio 29.875 MHz FM [CSQ]
29.8875 MHz FM - Russian language chatter
29.9000 MHz FM - Fishing fleet comms mixing with paging 29.900 MHz FM [CSQ]
29.9000 MHz FM - Pager - POCSAG paging bursts 29.9 MHz POCSAG pager
29.9250 MHz FM - Fishing fleet radio chatter Asian fishery radio 29.925 MHz FM [CSQ]
29.9500 MHz FM - Pager - POCSAG paging bursts 29.95 MHz POCSAG pager
29.9750 MHz FM - Fishing fleet radio chatter Asian fishery radio 29.975 MHz FM [CSQ]
30.0000 MHz FM - Strong FM carrier on 30.0000 MHz 30000.0 kHz
30.0000 MHz FM - Fishing fleet comms mixing with unmodulated carrier (with background hum)
30.0000 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.000 MHz FM [CSQ]
30.0000 MHz FM - Military comms, heavily distorted due to wide FM deviation
30.0250 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.025 MHz FM [CSQ]
30.0500 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.025 MHz FM [CSQ]
30.0625 MHz FM - UNID two way FM comms, possibly Russian language
30.1000 MHz FM - Pager - POCSAG bursts, fair to weak
30.1000 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.100 MHz FM [CSQ]
30.1375 MHz FM - UNID language
30.1500 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.150 MHz FM [CSQ]
30.1875 MHz FM - Arabic language? weak
30.2000 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.200 MHz FM [CSQ]
30.2250 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.225 MHz FM [CSQ]
30.2500 MHz FM - Asian fishery radio, now getting clobbered by over the horizon radar OTH-R QRM
30.3000 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.300 MHz FM [CSQ]
30.3500 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.300 MHz FM [CSQ]
30.3750 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.375 MHz FM [CSQ]
30.4750 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.475 MHz FM [CSQ]
30.5000 MHz FM - 30.497 MHz and 30.502 MHz, sounds like Portuguese maybe?
30.5000 MHz FM - Strong FM signal with lots of deviation, probably military (not off-frequency)
30.5500 MHz FM - Strong Asian fishery radio comms, SIO 444 - 30.550 MHz FM [CSQ]
30.5800 MHz FM - US land mobile radio - "Thursday, they must have changed it"
30.6000 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.600 MHz FM [CSQ]
30.6500 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.650 MHz FM [CSQ]
30.6750 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.675 MHz FM [CSQ]
30.7200 MHz FM - US land mobile radio - taxi dispatch 30.720 MHz FM
30.7250 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.725 MHz FM [CSQ]
30.7500 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.750 MHz FM [CSQ]
30.7750 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.775 MHz FM [CSQ]
30.8000 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.800 MHz FM [CSQ]
30.8250 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.825 MHz FM [CSQ]
30.9000 MHz FM - Fishing fleet radio chatter Asian fishery radio 30.900 MHz FM [CSQ]
31.0000 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.000 MHz FM [CSQ]
31.0750 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.075 MHz FM [CSQ]
31.0800 MHz FM - US land mobile radio - taxi dispatch? SIO 333
31.1000 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.100 MHz FM [CSQ]
31.1000 MHz FM - US land mobile radio - fire mutual aid network broadcasts
31.1200 MHz FM - US land mobile radio - taxi / bus dispatch 31.120 MHz FM very strong
31.1250 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.125 MHz FM [CSQ]
31.1500 MHz FM - Asian fishery radio comms mixing with POCSAG paging 31.150 MHz FM [CSQ
31.1500 MHz FM - Pager - POCSAG paging bursts 31.15 MHz POCSAG pager
31.1750 MHz FM - Fishing fleet chatter - very very strong, fishery radio 31.175 MHz FM [CSQ]
31.1955 MHz USB - UNID language
31.2000 MHz FM - Latin American land mobile - YL taxi cab dispatcher - probably Costa Rica
31.2600 MHz FM - US land mobile comms
31.3250 MHz FM - Fishing fleet radio chatter mixing with data signals 31.325 MHz FM [CSQ]
31.3250 MHz FM - French traffic control signal data
31.3600 MHz FM - US land mobile - business comms
31.3750 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.375 MHz FM [CSQ]
31.3800 MHz FM - US land mobile radio - business comms
31.4000 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.475 MHz FM [CSQ]
31.4400 MHz FM - US land mobile radio - taxi / bus dispatch 31.440 MHz FM
31.4500 MHz FM - FM carrier
31.4500 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.450 MHz FM [CSQ]
31.4750 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.475 MHz FM [CSQ]
31.5750 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.575 MHz FM [CSQ]
31.6000 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.600 MHz FM [CSQ]
31.6200 MHz FM - US land mobile radio - dispatcher
31.6250 MHz FM - Asian fishery radio - 31.625 MHz FM [CSQ]
31.6875 MHz FM - French traffic control signal data
31.7250 MHz FM - UK hospital pager - POCSAG on-site paging
31.7500 MHz FM - UK hospital pager - POCSAG on-site paging
31.7500 MHz FM - Asian fishery radio mixing with the POCSAG signals 31.750 MHz FM [CSQ]
31.7750 MHz FM - UK hospital pager - POCSAG on-site paging
31.7750 MHz FM - Asian fishery radio mixing with the POCSAG signals 31.775 MHz FM [CSQ]
31.8000 MHz FM - Asian fishery radio - very strong signals 31.800 MHz FM [CSQ]
31.8200 MHz FM - US land mobile radio - taxi / bus dispatch 31.820 MHz FM
31.8500 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.850 MHz FM [CSQ]
31.9000 MHz FM - US land mobile radio - business radio comms
31.9000 MHz FM - Fishing fleet radio chatter Asian fishery radio 31.900 MHz FM [CSQ]
31.9250 MHz FM - Data, 25 kHz bandwidth - possibly digital encrypted military comms
31.9400 MHz FM - US land mobile radio - taxi / bus dispatch 31.940 MHz FM
31.9600 MHz FM - US land mobile radio - 31.960 MHz FM
31.9750 MHz FM - French traffic control signal data
32.0000 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.000 MHz FM [CSQ]
32.0125 MHz FM - UNID language
32.0250 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.025 MHz FM [CSQ]
32.0750 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.075 MHz FM [CSQ]
32.1000 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.100 MHz FM [CSQ]
32.1500 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.150 MHz FM [CSQ]
32.1750 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.175 MHz FM [CSQ]
32.1800 MHz FM - Latin American land mobile - YL taxi cab dispatcher - probably Costa Rica
32.1875 MHz FM - UNID language, very strong, possibly fishery radio using 12.5 kHz step mode
32.2000 MHz FM - Asian fishery radio - very strong signals 32.200 MHz FM [CSQ]
32.3250 MHz FM - Strong FM carrier
32.3500 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.250 MHz FM [CSQ]
32.4000 MHz FM - Fishery radio comms, SIO 444, good signals 32.400 MHz FM [CSQ]
32.4150 MHz FM - Strong FSK signal
32.4250 MHz FM - Fishery radio comms Asian fishery radio 32.425 MHz FM [CSQ]
32.6875 MHz FM - UNID Asian language, very strong
32.8000 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.800 MHz FM [CSQ]
32.8500 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.850 MHz FM [CSQ]
32.8750 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.875 MHz FM [CSQ]
32.9000 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.900 MHz FM [CSQ]
32.9500 MHz FM - Fishing fleet radio chatter Asian fishery radio 32.950 MHz FM [CSQ]
33.0000 MHz FM - Paging signals - data bursts
33.0000 MHz FM - Fax signal, mixing with other data bursts and voice on same frequency
33.0000 MHz FM - Fishing fleet radio chatter Asian fishery radio 33.000 MHz FM [CSQ]
33.0500 MHz FM - Fishing fleet radio chatter Asian fishery radio 33.050 MHz FM [CSQ]
33.0750 MHz FM - Pager - rapid data bursts
33.1000 MHz FM - US land mobile radio - taxi / bus dispatch 33.100 MHz FM
33.1500 MHz FM - UNID language, weak
33.2750 MHz FM - Fishing fleet radio chatter Asian fishery radio 33.275 MHz FM [CSQ]
33.3400 MHz FM - US land mobile radio
33.4250 MHz FM - Fishing fleet radio chatter Asian fishery radio 33.425 MHz FM [CSQ]
33.5000 MHz FM - Fishing fleet radio chatter Asian fishery radio 33.500 MHz FM [CSQ]
33.5600 MHz FM - US land mobile radio - fire rescue dispatcher 33.560 MHz FM
33.6000 MHz FM - Fishing fleet radio chatter Asian fishery radio 33.600 MHz FM [CSQ]
33.6500 MHz FM - Pager - POCSAG paging bursts
33.7500 MHz FM - Fishing fleet radio chatter Asian fishery radio 33.750 MHz FM [CSQ]
33.8000 MHz FM - Fishing fleet radio chatter Asian fishery radio 33.800 MHz FM [CSQ]
33.8500 MHz FM - Pager - POCSAG burst transmissions paging signals 33.850 MHz
33.8750 MHz FM - Pager - POCSAG bursts paging signals, mixing with FM voice
33.8750 MHz FM - Fishing fleet radio chatter Asian fishery radio 33.875 MHz FM [CSQ]
34.0000 MHz FM - Fishing fleet radio chatter Asian fishery radio 34.000 MHz FM [CSQ]
34.0500 MHz FM - French land mobile comms
34.0500 MHz FM - Fishing fleet radio chatter Asian fishery radio 34.050 MHz FM [CSQ]
34.0625 MHz FM - French land mobile comms
34.1000 MHz FM - French land mobile comms
34.1500 MHz FM - Data bursts
34.2000 MHz FM - Pager - very strong paging signals - frequent bursts 34.200 MHz pager
34.2200 MHz FM - Arabic language, weak
34.2250 MHz FM - Fishing fleet radio chatter Asian fishery radio 34.225 MHz FM [CSQ]
34.3000 MHz FM - French land mobile comms
34.3500 MHz FM - French land mobile comms
34.4125 MHz FM - French land mobile comms
34.4375 MHz FM - French land mobile comms
34.4750 MHz FM - French land mobile comms
34.5500 MHz FM - Pager - strong POCSAG bursts [20-25 kHz wide]
34.5750 MHz FM - Fishing fleet radio chatter Asian fishery radio 34.575 MHz FM [CSQ]
34.5875 MHz FM - French land mobile comms
34.6000 MHz FM - Fishing fleet radio chatter Asian fishery radio 34.600 MHz FM [CSQ]
34.9750 MHz FM - French land mobile comms
35.2750 MHz FM - French land mobile comms - with selective calling tone burst
35.3000 MHz FM - Pager - POCSAG bursts - sporadic activity
35.3125 MHz FM - French land mobile comms - with selective calling tone burst
35.3200 MHz FM - Pager - bursts
35.3625 MHz FM - French land mobile comms - with selective calling tone burst
35.4000 MHz FM - French land mobile comms - with selective calling tone burst
35.4250 MHz FM - French land mobile comms - with selective calling tone burst
35.4625 MHz FM - French land mobile comms - with selective calling tone burst
35.5000 MHz FM - Pager - Non stop POCSAG signals 35.500 MHz FM 35,500 Paging POCSAG
35.5500 MHz FM - French land mobile comms - with selecting calling tone burst
35.5500 MHz FM - Data bursts
35.5625 MHz FM - French land mobile comms - with selective calling tone burst
35.5875 MHz FM - French land mobile comms - with selective calling tone burst
35.6000 MHz FM - French land mobile comms - with selective calling tone burst
35.6125 MHz FM - French land mobile comms - with selective calling tone burst
35.6250 MHz FM - French land mobile comms - with selective calling tone burst
35.6400 MHz FM - Paging - likely US pager - POCSAG bursts
35.6875 MHz FM - French land mobile comms - with selective calling tone burst
35.7000 MHz FM - French land mobile comms - with selective calling tone burst
35.7125 MHz FM - French land mobile comms - with selective calling tone burst
35.7250 MHz FM - French land mobile comms - with selective calling tone burst
35.7600 MHz FM - US land mobile - business comms
35.7625 MHz FM - French land mobile comms - with selective calling tone burst
35.8000 MHz FM - French land mobile comms - with selective calling tone burst
35.8125 MHz FM - French land mobile comms - with selective calling tone burst
35.8250 MHz FM - French land mobile comms - with selective calling tone burst
35.8625 MHz FM - French land mobile comms - with selective calling tone burst
35.8750 MHz FM - French land mobile comms - with selective calling tone burst
35.8800 MHz FM - US land mobile - business comms
35.8875 MHz FM - French land mobile comms - with selective calling tone burst
35.9000 MHz FM - French land mobile comms - with selective calling tone burst
35.9125 MHz FM - French land mobile comms - with selective calling tone burst
35.9250 MHz FM - French land mobile comms - with selective calling tone burst
35.9625 MHz FM - French land mobile comms - with selective calling tone burst
35.9750 MHz FM - French land mobile comms - with selective calling tone burst
35.9875 MHz FM - French land mobile comms - with selective calling tone burst
36.0250 MHz FM - French land mobile comms - with selective calling tone burst
36.0375 MHz FM - French land mobile comms - with selective calling tone burst
36.1125 MHz FM - French land mobile comms - with selective calling tone burst
36.2750 MHz FM - Russian language, OM and YL talking
36.3250 MHz FM - FM carrier with "chirps"
36.4250 MHz FM - Scrambled FM voice, probably military
36.4750 MHz FM - French land mobile comms
36.5250 MHz FM - Data bursts - two MFSK signals in rapid succession, 4-5 seconds between each burst pair
36.7500 MHz FM - Data, possibly encrypted two-way comms
36.9250 MHz FM - French language land mobile comms
37.0000 MHz FM - French language
37.0000 MHz FM - Military comms, wide FM deviation
37.2250 MHz FM - Caught the tail end of a FM transmission, UNID voice
37.7250 MHz FM - Pager or data link - short bursts
37.7500 MHz FM - FM carrier, on and off, probably just weak two-way comms?
37.8000 MHz FM - Military comms, wide FM deviation - sounds like Russian
37.9250 MHz FM - Pager - Strong paging bursts, 1-5 seconds or longer
38.0000 MHz FM - Very wide FM deviation two-way comms, heavily distorted
38.1000 MHz FM - Data, possibly encrypted digital two-way comms - could be military
38.1750 MHz FM - Data, possibly encrypted digital two-way comms - could be military
38.5250 MHz FM - Russian language chatter
38.7000 MHz FM - Russian language chatter
39.0000 MHz FM - Data, possibly encrypted digital two-way comms - could be military