#HFdata - Twitter Hashtag

'Transmitting in the red...' @geoff_mcmaw

about 3 years ago

Strong signal from a Russian AKKORD data link. Centre freq of 7261.7 kHz b/w 2.4kHz. Another on 7241.7 kHz. Both of these previously logged here this year. #hfdata #airspyhf QTH Armagh, N Ireland 1927z

geoff_mcmaw's tweet photo. Strong signal from a Russian AKKORD data link. Centre freq of 7261.7 kHz b/w 2.4kHz. Another on 7241.7 kHz. Both of these previously logged here this year. #hfdata #airspyhf QTH Armagh, N Ireland 1927z https://t.co/KzEqWHCnrY

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'Transmitting in the red...' @geoff_mcmaw

over 3 years ago

Big NATO Link-11 SLEW signal thumping away. #hfdata 2318z

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735

'Transmitting in the red...' @geoff_mcmaw

over 3 years ago

Yet another new one (on me) Stanag 4285 signal. HF is full of them. #hfdata #sorcerer 1529z UK

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383

'Transmitting in the red...' @geoff_mcmaw

over 3 years ago

Strangest of waveforms with data bursts on 14987 kHz usb at 2005z into UK. Signal bandwidth is approx 3kHz with possible pilot tone at 3.3kHz #unid #hfdata

geoff_mcmaw's tweet photo. Strangest of waveforms with data bursts on 14987 kHz usb at 2005z into UK. Signal bandwidth is approx 3kHz with possible pilot tone at 3.3kHz #unid #hfdata https://t.co/XSrRkkodKw

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'Transmitting in the red...' @geoff_mcmaw

about 4 years ago

16011.7 Egyptian MFA sending 5 figure groups in Sitor-A 100/170. 2100z #hfdata

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'Transmitting in the red...' @geoff_mcmaw

about 4 years ago

Checking some archive recordings today, and another odd ball one @MilcomMP (at least to me). Recorded 4May22 2000z. Ranges from 9220.75-9222.3 kHz. Gap is approx 5 secs then runs for 24 secs. The small dot at 9222.0 is 'S' in CW. (may not be connected) #uniddata #hfdata