The CP-136 is an Audio Panel with Marker Beacon Indicator lights. Please note that while this radio works with an external Marker Beacon Receiver, it does not have that functionality built in. If you would like this Audio Panel with a complete Marker Beacon section, please see our CP-136M. The CP-136 is a basic Audio Panel that offers Marker Beacon lights and Mute, self-test function, and pushbutton operation. An interesting feature of the CP-136 is the ability to monitor more than one audio source. For example, if you push the BOTH button, you can monitor both COMM transceivers at the same time. You may also listen to more than one NAV source at once. The CP-136 has the following switch positions:

• 2 COMMs
• Both COMMs
• 2 NAVs
• ADF
• Marker Beacon

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