HFU HF Underground
Loggings => 10/11 meters => Topic started by: R4002 on November 13, 2026, 2014 UTC
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RX: W3HFU SDR receiver
Frequency: 27785 kHz
Frequency: 27,785 AM 27.7850 MHz 27785.0 AM
Mode: AM A3E emission
Likely user: Taxi cab dispatch, land mobile - taxi cab radio system land mobile radio type system, CB radio in taxi cab driver cab radio two-way comms export radio CB Channel 33 "up one band" - clashes with, at least in theory, UK FM CB radio channel 19 - which is on 27.78125 MHz FM (27.781 FM, 27781.25 kHz FM, etc.). 3.75 kHz offset from UK FM CB CH19, the band does not appear to be open to the UK and no UK FM CB signals or European signals are coming in at the moment, but this is a well-documented user of this frequency.
Location / QTH: Mexico - YL dispatcher - Spanish speaking SS AM mode