I picked up a used Ramsey DDF1 kit-based Doppler direction finder several months ago but am just now getting around to playing with it. My question is very basic. I'm puzzled by the audio connection from the associated receiver. The kit instructions call for the audio to be input to a 2.1 mm jack. But what audio plug fits this connector? The male plug that fits must be quite small. I'm familiar w 2.1 mm connectors used for DC power inputs, but not for audio applications. Does anyone have a DDF1 that accepts this audio input?
Thanks in advance for any replies.
Thanks in advance for any replies.