What is the audio tape for?
The audio tape included with the demodulator contains actual recordings of a NOAA APT polar satellite pass, a Meteosat geostationary satellite transmission, and an HF fax signal. The tape can be used to get an idea of what these signals sound like when you actually start recording your own. In addition the two satellite recordings (not the HF) can actually be played back on a tape deck or portable tape player and recorded by your MultiFAX setup to produce an image with no need for antenna or receiver. The HF recording can also help you “gain an ear” for tuning the HF fax signals properly.
