07-03-2014, 08:45 AM
Yes sounds like motorboating.
Not sure but because it has to do with tuning and the IF and RF do not really depend in their stability on the passing frequency, try to look at the oscillator first. Maybe it becomes unstable at a certain point.
Not sure but because it has to do with tuning and the IF and RF do not really depend in their stability on the passing frequency, try to look at the oscillator first. Maybe it becomes unstable at a certain point.