Re: P3 SVGA interference -
Posted by Bob - W6OPO on May 30, 2012; 4:20pm
URL: http://elecraft.85.s1.nabble.com/P3-SVGA-interference-tp7556731p7556776.html
I can agree with you regarding the IF oscillator oscillating since when I approach the coax it changes the conditions stopping the oscillatoin. BUT - if it was the P3's IF amplifier going into oscillation I would expect the display to freeze as no IF signal would be able to pass. That does not happen. The P3 and SVGA continue to operate as it should but has the extreneous signal displayed.
I am convinced the ribbon cable signaling was inducing a signal onto the shield of the internal IF coax. Moving the ribbon cable away from the IF coax cleared the whole problem up.
All is as it should be now.
73,
Bob - W6OPO