Speaker-Microphone; Optional Hm-138 Description - Icom IC-F51 Instruction Manual

6

■ Optional HM-138 description

Alligator type clip
To attach the speaker-mic.
to your shirt or collar, etc.
PTT switch
Transmits while pushed
Receives while released
Microphone
Speaker
NEVER immerse the connector in water. If the connector becomes
wet, be sure to dry it BEFORE attaching it to the transceiver.
NOTE: The microphone is located at the top of the speaker-mi-
crophone, as shown in the diagram above. To maximize the
readability of your transmitted signal (voice), hold the micro-
phone approx. 5 to 10 cm from your mouth, and speak in a nor-
mal voice level.
45

SPEAKER-MICROPHONE