I have old Icom IC730 without mic7. Sooo)
if there is no microphone, you need to make a microphone 😉 Lets go

Need schematic of IC-HM7

Need new Baofeng standard mic and new board in the shape of the Bao board

Soldering

And final results. Work very good. Love this radio!

I use filters on all the networks in my house. But one day lightning damaged my transceiver power filter.

This is how I repaired my filter:

Measurements have shown that the filter has good rejection in the bandwidth 1-30mhz -60 -28db 50mhz -16db