There is an issue of useable bandwidth. Sound cards generally don't respond
to much above 20 kHz. Do you propose to convert the RF signals down into
the audio baseband without destroying the information which you are trying
to analyze?

--
Karl Beckman, P.E.
Motorola Govt & Public Safety
OH21 440-717-3992


"Raymond BARBER" wrote in message
...
Am trying to write C program to use sound card to input rf signals into
computer and then analise them. Would appreciate help on programming sound
card etc

73
Ray G3NEF