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NHRC-Squelch into KL RX Module

10 September, 2015 - Reading time: 2 minutes

I'm a great fan of the NHRC-Squelch board, and the additional squelch performance it provides over the standard KL mute.

This is how I install them, they fit nicely into the PLL compartment of the receiver module.

This image shows the connection points in the circuit diagram.

This one shows the points on the board where connections can be made.

Here it is installed.

Follow the instructions for level adjustment and you'll have a nicely performing receiver with the silent mute action that the KL is known for, but with new added ability for it to follow mobile signals into deep fades.