RadioBanter - View Single Post

April 27th 05, 04:43 PM

"Johnson X. Jones" Johnson wrote in message
...
has anyone had a problem with the magnum 257 dropping down 10 khz when the
power is turned on? this happens when the on-off knob is turned to the on
position. i thought it maybe an issue with my truck but it happened when
wired direct to the battery as well as inside on a power supply. this
issue doesn't affect the way the radio talks. works fine when on the
supply going into the 5/8 wave ground plane.

thanks in advance

johnsonX

Are you still using the stock mic? Keep in mind that the stock mic's
up/down button is pulsed with with the either the 12V coming up the mic cord
or ground, I can't remember off the top of my head. If you have this wire
tied to another it may see the turn on as a channel change. when rewiring a
mic with no channel change the pin 6 and pin 4 must be disconnected and
insulated off.

I can get you more details if you need them.

Here pin out of the mic socket
1- audio
2- Receive
3- Transmit
4- CH up/down
5- Ground
6- 12V from power input with NO CURRENT LIMITING.

Chad