At 10:54 24 March 2013, Lazarost wrote:

Hi to all.
I'm electronic technician and i start to repair some equipments for
gliders and planes.So i have a problem with a Becker AR3201. The problem
is when you press the PTT to talk or you receive a signal you hear at
the headset or at the speakers a noise like the noise from alternator. I
try to install a power line filter but without any success. I try with
the engine not running (only with the battery) and the problem is still
presents.
Any idea what happen ???
Thanks for any help.
Lazaros Greece




--
Lazarost

I know next to nothing about radios, but could it be that the squelch needs
turning down? On the 3201 there is an adjustment screw that you get at
through the lowest of 3 holes in the RH side of the casing.
Dave