Hi The sample rate on a sound card is not always a good indication of it’s performance. Some 192 KS/s cards have cutoff’s below 50 KHz. Others have a noise spectrum that rises quite a bit past 30 or 40 KHz.
Lots to dig into …. Bob > On May 5, 2018, at 5:42 PM, Alberto di Bene <dib...@usa.net> wrote: > > If you have a sound card capable of sampling at 192 kS/s, you don't need an > SDR > to receive a signal at 60 kHz... just connect the output of an active > antenna, like > e.g. the mini-whip, directly to the Line-In of the sound card, then use, for > example, > HDSDR as software, setting the sampling frequency of the sound card to 192 > kS/s, > the LO to zero, and the TUNE to 60 kHz. > > I used this method in the past to successfully receive the SAQ transmission > at 17.2 kHz > Look here : > > http://www.sdradio.eu/SAQ_2009_12_24.html > > 73 Alberto I2PHD > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
