On 1/28/2012 7:30 PM, Don Wilhelm wrote: > I just cannot unserstand how the KPA500 can create birdies during > periods of receive.
Don, When thinking about sources of RF trash, remember that ANY oscillator or microprocessor or any other piece of digital circuitry generates RF trash as a byproduct of its operation, and must be contained by good circuit design. That includes careful layout to minimize current loops and wires that can radiate, as well as avoiding Pin One Problems. From the symptoms (the bad cap and the LCD Brightness), it sounds like something associated with the display circuitry is the culprit. FWIW, I've heard it with my KPA500. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
