Jack, You bring up a good point. I don't know if the TS-430 has an auxiliary audio input or not; usually for a phone patch. If it does, then do your audio remotely with whatever Mic you want, compressor, equalizer, etc. and pipe it into the remote audio jack. Then tee off that input to drive the 'X' axis of your scope. Keep in mind that this approach will only work if there is minimal phase shift over the audio range (100-4000hz) between the remote input and the balanced modulator. If the TS-430 does not have a remote audio input, then surgery is required to tap into the audio driving the balanced modulator. Once done you can inject high level audio from an external source as well as sample the audio for the scope.
Jim JKO ----- Original Message ---- From: Jack Schmidling <[EMAIL PROTECTED]> To: Jim Candela <[EMAIL PROTECTED]>; Discussion of AM Radio in the Amateur Service <amradio@mailman.qth.net> Sent: Sunday, October 15, 2006 11:03:06 PM Subject: Re: [AMRadio] TS430 as VFO on a KNIGHT T60 Jim Candela wrote: > I am going to state here as my opinion that > with linear AM you should monitor the RF output with a scope, and use > the Trapezoid pattern when optimizing the linear controls, drive > level, and audio level. I have one set up but can't figure out a convenient way to get at an audio sig for the x axis from the TS430. js -- PHOTO OF THE WEEK: http://schmidling.com/pow.htm Astronomy, Beer, Cheese, Fiber,Gems, Sausage,Silver http://schmidling.com ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
