NR should be off, NB RF + IF should also be off, AGC should be set to Slow, Squelch should be turned off. I have used SSTV, WSJT and APRS packet for my examples because I know where to look and that signals are often available.įor HDSDR settings I suggest using the default filter bandwidth. Many of the modes listed here may be used. In general, any soundcard datamode program may be connected by one of the ways shown. If not, consider the other three options.ĭetailsfurther down this page:- 1) Stereo Mix, 2) VBcable, 3) Additional Soundcard, 4) Virtual Audio Cable (VAC). Look at the bottom of this page for links to more advanced topics.įirst you will need an intermediate sound interface to send audio to a data decoding program.ĭetermine whether your system supports "Stereo Mix" or it's equivalent maybe called "What You Hear" or something else. I hope this page will give a start, HDSDR offers much more. I assume you are familiar with HDSDR (or the SDR program you are using) and have setup you SDR RX or RX/TX for normal operation. Various methods must be used depending on the SDR and what sound systems you have available on your computer. For beginners I describe here how to use an SDR receiver and HDSDR (or any other SDR program) for basic data decoding.
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