Activity indicator (RU)

It’s just a LED indicates squelch state. Just use signal from pin 2 and invert it:

Components

• NPN transistor (i.e. 2222)
• 3 resistors 1k
• LED

Step 1

Unmount PTT front panel and drill a hole for LED

Step 2

Look for a hidden cut wire from the second pin of RJ45

Step 3

Make it longer

Step 4

Mount components

Step 5

Enable REP-M mode and test it:

No activity

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