its around 75 khz, twente sdr
some kind of time signel
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6 odpowiedzi na „some kind of time signel”
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never heard of these kinds of time things
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because you are not into swling, you are in vhf and UHF, go and get yourself a shortwave radio or rtl sdr v4 and hd sdr, and start listening to short wave and you will be introed to the world of swl
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Bad modulation, change to usb or lsb i forgot. It’s dcf77
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yes, i tried usb on 77.5 khz, it is better, there is no more tone.
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actually it is 77.5 kHz, theproper modulation is either AM or PM, Phase modulation, like in phase shift keying.
This signal has both an AM layer and a PM (phase modulation) layer.AM layer is simple in decoding, PM layer has more sophisticated things to do, decoding it requires more signal/noise ratio, but provides exact time.
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