It transforms the audio data from the receiver into digital data that the computer can read. Here, interface means a kind of modulator/ demodulator that connects your computer to your receiver/transmitter. a standard 16 bit sound card or better, or a serial port to connect to an external interface.high- or true colour graphics with at least 800圆00 resolution.486 DX/2-66 as a minimum but quite happy with 3GHz and faster processors.at least 16 MB of RAM, better 32MB on older machines or at least 128MB on newer machines.Running Windows 95, Windows 98, Windows NT, Windows 2000, Win ME, Win XP, Win 7, Win 8 (32 and 64 bit supported).an appropriate HAM band transceiver for the reception and transmission of SSTV reception and.a 1.7 GHz receiving equipment for the reception of e.g.a 137 MHz receiving equipment for the reception of low earth orbiters.