11m DX Activity [W3HFU SDR] 21 July 2023

[R4002]

07/21/2023 11 meter activity


26.405 MHz AM 26405 AM - Taxi cab dispatch, taxi cab radio comms - 26.4050 MHz AM taxi dispatcher YL
26.515 MHz AM 26515 AM - Taxi cab dispatch - Mexican taxi cab radio comms
26.555 MHz LSB 26555 LSB - Spanish speaking freebander CB activity, talking about antennas, fair signals
26.565 MHz AM 26565 AM - Weak two-way radio comms, sounds like taxi cab dispatch - taxi cab radio comms 26.565MHz AM YL dispatcher
26.585 MHz AM 26585 AM - Mexican CB signals - some weak, some very strong, popular frequency 26.585MHz AM
26.605 MHz LSB 26605 LSB - Spanish language chatter, interesting frequency choice (usually there's AM activity on/near 26.6 MHz or so)
26.615 MHz AM 26615 AM - Taxi cab dispatch, LMR land mobile radio comms, Latin American taxi cab 26.615MHz AM
26.765 MHz AM 26765 AM - Taxi cab dispatcher, YL dispatch - very good signals - Mexican taxi cab lady 26.7650 MHz AM
26.805 MHz FM 26805 FM - US freebander CB radio chatter - FM calling frequency, some very nice signals 26.805 MHz FM
26.815 MHz AM 26815 AM - US 11m freebanders, shooting DX
26.915 MHz AM 26915 AM - American freeband CB calling frequency 26.915 MHz AM busy
26.925 MHz LSB 26925 LSB - Freeband chatter, "No 56, No..." "No Texas" - talking about propagation conditions on 10m and 20m
26.925 MHz AM 26925 AM - Truckers, US stations land mobile comms 26.925MHz AM

27.440 MHz FM 27440 FM - "Quito Columbia" heard, very strong FM signal - "Costa Rica" 10-12 kHz wide, almost full quieting at points
27.455 MHz USB 27455 USB - Latin American calling frequency, very busy
27.480 MHz USB 27480 USB - Very strong SSB (Spanish language)
27.500 MHz AM 27500 AM - Portuguese language - interesting frequency choice
27.500 MHz USB 27500 USB - Latin American stations, informal chatter
27.505 MHz USB 27505 USB - "Puerto Rico" heard
27.525 MHz USB 27525 USB - Spanish language comms, outbanders
27.530 MHz USB 27530 USB - Mexican stations, heard 10 prefix callsign
27.555 MHz USB 27555 USB - Calling frequency, active as to be expected
27.560 MHz USB 27560 USB - "Puerto Rico" and "Costa Rica" locations heard, informal QSO
27.565 MHz USB 27565 USB - Spanish language, heard mention of Costa Rica
27.575 MHz USB 27575 USB - Latin American freeband 11m SSB chatter - Spanish language
27.605 MHz FM 27605 FM - FM CB comms - Spanish language, 8-9 kHz bandwidth, heavy fading
27.635 MHz AM 27635 AM - Two-way comms, likely US truckers using export radios on freeband frequencies 27.635MHz
27.695 MHz LSB 27695 LSB - Spanish language, South American stations (common frequency)
27.745 MHz AM 27745 AM - Mexico City taxi cab dispatch radio LMR 27 MHz taxi cab radio 27.7450 MHz AM
27.745 MHz USB 27745 USB - "Number 4" other 11m callsigns heard, mixing with the taxi lady
27.755 MHz USB 27755 USB - Spanish language - Latin American freeband 11 meter radio comms
27.775 MHz AM 27775 AM - Mexico City taxi cab dispatch radio LMR 27 MHz taxi cab radio 27.7750 MHz AM YL dispatch lady
27.805 MHz AM 27805 AM - Mexico City taxi cab dispatch radio LMR 27 MHz taxi cab radio 27.8050 MHz AM
27.815 MHz AM 27815 AM - Mexico City taxi cab dispatch radio LMR 27 MHz taxi cab radio 27.8150 MHz AM
27.825 MHz AM 27825 AM - Mexico City taxi cab dispatch radio LMR 27 MHz taxi cab radio 27.8250 MHz AM
27.855 MHz USB 27855 USB - Stations calling CQ - Portuguese language
27.915 MHz AM 27915 AM - Taxi cab dispatch, OM taxi drivers heard replying to the dispatch lady

[RobRich]

Worked various ops in a few New Engand and Midwestern states, plus an op in Ireland, around mid-day. Usual 11m CB SSB frequencies. 11m DX propagation was varying from somewhat dismal to moderate at the time.

[R4002]

The bands have been sort of all over the place recently.  At some points, 11 meters and 10 meters are both going nuts, then VHF low band opens up...then things quiet down just as quickly.

I've noticed a lot more paging signals, data links and narrow bandwidth MFSK signals (on odd offset frequencies from 25-28 MHz) during recent openings.

Lots and lots of activity either way.  Nice to see more and more FM signals popping up, most of them are still out of the legal 40 US CB band though it seems.