Icom IC-M90 - Manual (Page 33)

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OPTIONAL SPEAKER-MICROPHONE
10
11
■ HM-125 Descriptions
NEVER immerse the connector in water. If the connector be-
comes wet, be sure to dry BEFORE attaching it to the trans-
ceiver.
NOTE: The microphone is located at the top of the
speaker-microphone, as shown in the diagram above. To
maximize the readability of your transmitted signal (voice),
hold the microphone approx. 2.5 cm (1 inch) from your
mouth, and speak in a normal voice level.
■ Attachment
Insert the speaker-mic connector on to the [SP MIC] connec-
tor and carefully screw it tight, as shown in the diagram
below. Be careful not to cross thread the connection.
IMPORTANT: KEEP the transceiver’s [SP MIC] connector
cap attached 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 transceiver will function abnormally if the con-
nector has become wet.
Alligator type clip
To attach the speaker-mic.
to your shirt or collar, etc.
PTT switch
Transmits during push.
Receives during release.
Microphone
Speaker
Set the triangle
mark to the front
side.
CAUTION: Attach the speaker-microphone’s
connector securely to prevent accidental
dropping, or water intrusion in the connector.
Detaching:
Pull up the cap
in the direction
of the arrow to
detach it.
Attaching:
Attach the cap
in the direction
of the arrow
completely.