HFU HF Underground
Loggings => 10/11 meters => Topic started by: RobRich on October 18, 2022, 1002 UTC
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Weak groundwave signals at 0952z. 27185a, 27265a, 27285a, 27305a, etc.
Spotted a a blip or two on 27025a in the waterfall, though I suspect it was local.
Usual receiver when in the den. Airspy HF+ Discovery and 31' vertical over radial field. Preamp engaged.
Temps are supposed to drop for a couple of days. Might finally take a look at rerouting my 18' vertical feedline.
Starting at ~1000z:
27385l - multiple locals via groundwave, including one op splattering across 11m
Starting at ~1152z:
27600u - Barbados op calling CQ
27345l - Spanish language activity (Europe?)
27465l - Spanish language activity (Europe?)
27395l - English language European DX
27285a - North American DX
27525u - Weak signal DX (Europe?)
27580u - Italian? language DX
27385l - usual DX zoo starting up
11m band is open for DX at 1444z.
27770 SSTV starting at ~1455z. SSB activity on 27700u and 27705l is not helping the SSTV decodes. Anyway.
(https://i.imgur.com/iYwwxyz.jpg) (https://i.imgur.com/LJdv0nu.jpg) (https://i.imgur.com/3LoSFF0.jpg) (https://i.imgur.com/OIJo8i5.jpg)
(https://i.imgur.com/GapQH3A.jpg) (https://i.imgur.com/rUTchit.jpg) (https://i.imgur.com/3y7j19o.jpg) (https://i.imgur.com/Mxir8tk.jpg)
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Another band opening!
26250 FM - POCSAG Pager Signal
26300 FM - POCSAG Pager Signal
26350 FM - POCSAG Pager Signal
26400 FM - POCSAG Pager Signal
26540 LSB - Spanish language
26550 FM - POCSAG Pager Signal
26555 LSB - Spanish language
26585 AM - Spanish language - Mexican trucker/freebander
26595 AM - Spanish language
26650 FM - POCSAG Pager Signal
26695 FM - POCSAG Pager Signal
26745 FM - POCSAG Pager Signal
26765 AM - Spanish language taxi dispatch
26805 FM - US freeband CBers - FM channel 26.805 FM
26900 FM - POCSAG Pager Signal
27465 AM - Italian language, lots of big signals coming in - Canale 45 - 27.465 MHz AM
27470 USB - Spanish language DXers
27500 USB - Spanish language
27505 FM - POCSAG paging signal - 8 kHz wide (center frequency 27.505 MHz, heavy QRM from 27.500 USB etc)
27520 USB - "From what your country, are you running a yagi?" "QSL, QSL, 5 element yagi beam, 100 watts" "317AD73" "Costa Rica" "26TRC155" and lots of others
27535 USB - Spanish language, lots of QRM from the 27.540 MHz LSB crowd
27540 LSB - "505 and 609" "yeah, that's technically mine..." "455" - sounds like Irish accents
27548 USB - "10 division" and heard mention of "Aruba"
27550 USB - European and UK stations coming in
27560 USB - Italian language
27575 USB - "Tango Alpha" - "Antenna"
27575 AM - Sounds like US truckers
27601 FM - UK FM Channel 1 - 27.60125 MHz FM - Weak signals
27615 USB - Spanish language
27620 USB - Heard what sounded like Caribbean stations, based on their accents (English language)
27621 FM - UK FM CB Channel 3 - 27.63125 MHz FM
27625 USB - Spanish language chatter, freebanders
27635 USB - ROS digital mode - good signals
27691 FM - UK FM CB Channel 10 - 27.69125 MHz FM - Open carrier?
27695 LSB - Spanish language chatter
27695 USB - Spanish language chatter, heavy fading
27700 USB - SSTV down in the noise
27701 FM - UK FM CB Channel 11 - 27.70125 MHz FM
27725 AM - Spanish language taxi cab dispatcher
27731 FM - UK FM CB Channel 14 - 27.73125 MHz FM
27755 AM - Spanish language, with music in the background...lots of fading, followed by YL taxi dispatcher
27765 AM - Taxi cab dispatcher and taxi cab drivers replying to dispatcher, good signals
27771 FM - UK FM CB Channel 18 - 27.77125 MHz FM
27775 AM - Taxi dispatcher, Spanish language with multi-tone burst at the end of her transmission 27.775 AM
27775 FM - German language CB chatter 27.775 MHz FM
27781 FM - UK FM CB Channel 19 - 27.78125 MHz FM - Lots of UK FM signals on this frequency, some QRM from SSB on/near frequency
27801 FM - UK FM CB Channel 21 - 27.80125 MHz FM -
27811 FM - UK FM CB Channel 22 - 27.81125 MHz FM - FM CB chatter, heavy QRM from the taxi dispatch lady on 27.815 MHz
27815 AM - Taxi dispatcher, Spanish language YL SS reading numbers, previously heard on this frequency 27.815 MHz AM
27821 FM - UK FM CB Channel 23 - 27.82125 MHz FM
27825 AM - Spanish language taxi dispatcher 27.825 MHz AM
27841 FM - UK FM CB Channel 25 - 27.84125 MHz FM
27851 FM - UK FM CB Channel 26 - 27.85125 MHz FM
27881 FM - UK FM CB Channel 29 - 27.88125 MHz FM - Open carrier...S3 fading up to S7 at points, no modulation noted
27941 FM - UK FM CB Channel 35 - 27.94125 MHz FM - Another open carrier
27971 FM - UK FM CB Channel 38 - 27.97125 MHz FM
27981 FM - UK FM CB Channel 39 - 27.98125 MHz FM
27985 LSB - Spanish language freebanders, QRM city due to UK FM chatter z
29750 FM - POCSAG Pager Signal
29800 FM - POCSAG Pager Signal
29900 FM - POCSAG Pager Signal