Quote:
Originally Posted by egatx
I did more characterization on the channel that fails (KVUE), and using SiliconDust's diagnostic tool, I noted that the reception interference occurs very predictably and periodically, approximately every 30 seconds.
Any ideas?
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Yes, it's most likely a KVUE transmitter problem. It is caused by a momentary overload of the linearity correction sample amplifier. The Harris Apex exciter takes a new sample every 30-31 seconds. The solution is to add a 6 db attenuator to the sample input.
http://www.minicircuits.com/pdfs/VAT-6+.pdf
Very few receivers are bothered by this momentary disturbance. The one I dealt with was a Panasonic Plasma.