Hi all,
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Today I decided I've listened to this high pitch whine on the 20 meter through 10 meter band long enough. Through a process of elimination I determined that the RTC module is causing the offensive noise in the background. With it unplugged everything is nice and quiet. My questions are, do I even need a RTC if I don't do digital stuff, does anyone know of a fix for this to quiet it down? BTW, I tried the exact same module out of my V2 board and it sounds the same with it plugged in, so It's not a defective module. Is anyone having this high pitched whine? Maybe some bypassing of the module is in order?
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Joel
N6ALT
Joel Caulkins/N6ALT