Icom iF22SR instruction manual Key Push Push and hold Mic UP, Mic Down, Mic a, Mic B

5 OTHER FUNCTIONS

‘Optional HM-75A functions

The optional HM-75A allows you to remotely send Smart-Ring/Call- Ring calls, open the squelch, etc. The switches on the HM-75A function as follows.

CAUTION: When connecting the HM-75A to the transceiver, make sure that the transceiver is turned OFF, otherwise the transceiver may malfunction.

Key	Push	Push and hold
Mic UP	Sends Smart-Ring.	Sends Call-Ring.
Mic DOWN	Turn the Tone	Turn the Tone
	Squelch ON.	Squelch OFF.
Mic A	Start/Stop scan B.	---
Mic B	---	---

Mic A Mic UP

Mic B

Mic Down

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