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|Zero Beating cw||May 28th 2012, 02:09||1||973||on 28/5/12|
|Zero Beating cw||AA2VG||on 28/5/12|
|I am on vacation with my SG-2020 , MFJ 971 portable tuner and 120 feet of speaker wire (long wire antenna). Although I think my SG-2020 is a great portable CW rig I have always had a problem zero beating the signal. The tone offset is 650 Hz so I needed a continuous 650 Hz sound generator. I found an iPhone app that works great. It is called Dog Whistler. I set the tone to 650 and zero beat it with an incoming signal.. Works great.