Cobra 150GTL DX, 200GTL DX
Documentation Project

CBTricks.com

Service Bulletins for the 150GTL DX and 200GTL DX
All the following file you will need to
You need to have Acrobat Reader version 5 or newer installed to view

Bulletin #
Service Bulletin Description
Models
How to add talkback.
200GTL DX
Receiver overloads when receiving a strong signal, resulting in distorted audio.
In addition there may be a warble in the modulation when transmitting (which the customer might describe as a popping sound during transmit).

150GTL DX
200GTL DX

Reduced adjacent channel rejection when the Noise Blanker is on.
150GTL DX
200GTL DX
“Speed-up” the echo effect (add reverb).
150GTL DX
200GTL DX
After adjusting the squelch control, sometimes received signals may sound choppy due to the squelch repeatedly opening and closing.
150GTL DX
200GTL DX
The HF50-12F MOSFET (Q35 and Q40) finals are no longer available.
NOTE: HF50-12F is not a MOSFET it's a NPN Transistor.
200GTL DX
The frequency display is not accurate.
200GTL DX

Copyright © 2005 CBTricks.com

Disclaimer: Although the greatest care has been taken while compiling these documents,

we cannot guarantee that the instructions will work on every radio presented.