Speaker-Microphone; Optional Hm-138 Description; Attachment - Icom IC-450 Instruction Manual

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SPEAKER-MICROPHONE

I 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 (2 to 4 inches) from your mouth, and
speak in a normal voice level.
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I Attachment
Attach the connector of the speaker-microphone into the [SP MIC]
connector on the transceiver and tighten the screw.
IMPORTANT: KEEP the [SP MIC] jack cover attached (trans-
ceiver) when the speaker-microphone is not in use. Water will
not get into the transceiver even if the cover is not attached,
however, the terminals (pins) will become rusty, or the trans-
ceiver will function abnormally if the connector becomes wet.
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SPEAKER-MICROPHONE
CAUTION: Attach the
speaker-microphone s
connector securely to pre-
vent accidental dropping,
or water intrusion in the
connector.
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