Icom M88 Instruction Manual - Page 33
Speaker-microphone
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10 SPEAKER-MICROPHONE HM-138 Description Attachments Insert the connector of the speaker-microphone into the [SP MIC] connector on the transceiver and tighten the screw. 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. w q Detaching: Unscrew (q), then detach the jack cover (w). Attaching: Attach the jack e cover (e), then tighten the screw (r). r CAUTION: Attach the speaker-microphone s connector securely to prevent accidental dropping, or water intrusion in the connector. 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. 27