GW4OGO пишет:
I use a Koss SB45 headset in exactly the set-up you require and it works very well both as a headphone and mic. I also have a Expert 1K-FA connected to the SunSDR2pro which also works well.
I see, those are USB microphones aren't they? I take it you have plugged them straight into your PC/Mac and then select the microphone from the SDR software?
Can you tell me in detail how you have connected your SPE amplifier to the SDR, please? Somebody else suggested I make up an interface. However, that is beyond my capabilities because of my disability. So I contacted Martin Lynch and quite frankly I was astounded by their reply. They basically told me that if they were to make this cable for me it would cost a minimum of £60 (one hour labour). Also, because it wouldn't be tested they couldn't guarantee a, plus they didn't have time. So I'm really questioning whether I will buy the SDR from them now.