Icom IC-M88 - 10 Speaker-Microphone; HM-138 Description; Attachments

■ HM-138 Description
Alligator type clip
To attach the speaker-mic.
to your shirt or collar, etc.
PTT switch
Transmits during push
Receives during release
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-microphone, as shown in the diagram above. To
maximizethereadabilityofyourtransmittedsignal(voice),
holdthemicrophoneapprox.5to10cm(2to4inches)
from your mouth, and speak in a normal voice level.
■ Attachments
Insert the connector of the speaker-microphone into the [SP
MIC] connector on the transceiver and tighten the screw.
CAUTION: Attach the speaker-microphone’s
connector securely to prevent accidental
dropping, or water intrusion in the connector.
Detaching:
Unscrew (q),
then detach the
jack cover (w).
Attaching:
Attach the jack
cover (e), th-
en tighten the
screw (r).
q
w
e
r
IMPORTANT: KEEP the [SP MIC] jack cover attached
(transceiver)whenthespeaker-microphoneisnotinuse
asillustratedabove.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 connector becomes wet.
10
SPEAKER-MICROPHONE
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