Question about Cobra Radio Communications

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Hi i have a es880 echo chamber and need to wire it to a pama dm531 power mic and tristar 757 can anyone help?

Hello all ive acquired a es880 echo chamber but havent a scooby doo how to wire it im wanting to connect a pama power mic to the unit and a tristar 747 to the lead all the wires are disconnected on the socket side 1 blue wire 1 black wire 1 white and shield in gray sleeve 1 white and shield in white sleeve the blue and black wires come from the lead that goes to the radio the other wires are connected in the unit any advice will br greatly appreciated

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  • Cobra Master
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Posted on Feb 02, 2018

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Posted on Jan 02, 2017

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  • 170 Answers

SOURCE: Diesel #8-32 echo power mics

cobra 4 pin is pin1= shield, pin2= mic audio (usually the shield is wrapped around the mic audio wire).pin 3= transmit or push to talk usually red or white whichever isnt wrapped with the shield, and pin4 = receive or speaker complete

5 pin cobra=1-Audio 2- Shield 3-Receive 4-Switching Wire 5-Transmit, you can jump pins 4 and two

Posted on Dec 28, 2008

SOURCE: Wiring Johnson Microphone to cobra 29 CB Radio

Use trial and error systemathically. If still refuses to work, mike and radio aren't compatibles.

Posted on Nov 23, 2009

  • 12 Answers

SOURCE: I have a cobra 148gtl with 5 pin side plug for

ALLways start with ground. Find ground on radio pin with ohm meter. EVERY thing operates off ground. Once you find ground on radio....solder your ground wire on mike cord to corresponding # on mike jack. Once you have ground on proper pin then all else is elementary......use ohm meter to see which wires are TX and RX on mike.....last wire is audio wire.

Posted on Jan 25, 2010

  • 1274 Answers

SOURCE: Hi all, I am trying to wire a dm-452 echo / power

Pin-1,shield and black, Pin-2,white, Pin-3, red Pin-4,blue.

Posted on Mar 30, 2010

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cobra 4 pin is pin1= shield, pin2= mic audio (usually the shield is wrapped around the mic audio wire).pin 3= transmit or push to talk usually red or white whichever isnt wrapped with the shield, and pin4 = receive or speaker complete

5 pin cobra=1-Audio 2- Shield 3-Receive 4-Switching Wire 5-Transmit, you can jump pins 4 and two

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Hello Jim. These radios do not work well with any power mic including the power echo mics because they have good modulation boards in them. But if you still want to try then check http://www.cbtricks.com/radios/cobra/200gtl_dx/index.htm

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