[TenTec] humm

["John Molenda" <brazos@rochester.rr.com>]

Hello all , I am getting a hum on my audio when I go to the SSB menu and turn 
my l.f. rolloff  below 200 Hz  at 200 and above the hum is gone .     I am 
using the Orion II with a Heil heritage mic and the mic with the 5 cartridge ( 
full range ragchew ) If I change nothing and use the 4 cartridge ( dx dream ) I 
get no hum .  ( I know if it hurts when you do that don't do that )  Oh by the 
way I am using a astron rs 35m power supply .  any Ideas ?  thanks John kb2huk
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