Just turned on my 1 month old OMNI-VII and all the CW sigs on all bands sound warbly, (like the Cuban stations). No DC hum. Swapped out the power supplies, no change. Tried different wall plugs, no change. Ground is good. UGH. Of course it only happens after TT service has closed at 5 PM Eastern. HELP! Bill KO7AA in Tucson