As it turns out, this problem was caused by my 10 year old Samlex SEC1223 power supply.? After checking the radio on the bench once again I connected it to an Astron power supply.? No more issue.? Connected my 7000 back to the Samlex and monitored the DC supply on the scope. It had lots of noise on the DC when transmit power peaked. After inspection of the power supply I discovered three 2200 mfd 25V capacitors that had bulged and leaked black goo out the top.? I ordered replacements for the capacitors.? Hopefully the little Samlex supply will be good as new again after the replacement.?? -MD N6PRX
Marty - N6PRX