Gary, I assume the diagrams in the manual didn't make it through the text conversion process.
The RCA jack beside the power pole connector is a 12 VDC power output for supplying power to accessories. If you have the KRX3 second receiver, there may be a BNC connector above the power pole connector for a receive antenna for the second receiver. If you have neither the KRX3 or the KXV3, then there are no separate receive antenna inputs on your K3. The 3.5 mm jacks below the RS232 and ACC ports are, from left to right facing the back of the radio: - external speaker (stereo) - headphones (stereo or mono) - microphone input (mono) - line in (mono) - line out (stereo) Note regarding the speaker output: If you set CONFIG:SPKRS to 1, you can use a mono plug. However, if you have CONFIG:SPKRS set to 2, then unless your K3 has the recent AF Output mod fitted, plugging a mono speaker plug into the external speaker output could damage the AF amp chip. The headphone jack does not have this problem; it is safe to plug mono headphones into the headphone jack. As for the line out, if you do not have a KRX3 then only the left channel will be carry an audio signal. 73, Rich VE3KI ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
