Icom Hm-234 Speaker Microphone For A14 / A6 / A24

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Part# 11-15225
MFR Model# HM234


HM-234 speaker microphone for the A14, A6 & A24. This is the replacement microphone for the HM-173. L-Style Connector.


This WILL work with the A6 as well as the other A14/A24 models. The reason why a squealing sound is being heard is because a feedback loop is being presented to the radio. To eliminate the feedback and effectively use the HM234 handheld speaker microphone on the ICOM A6 one must TURN-OFF the Side-Tone Function by setting it to 0. To do this follow these steps: While keying the PTT button rotate the squelch knob CCW until 0 setting achieved. This information is also in the ICOM Technical Support Knowledge Base under the FAQ section. IC-A6 Radio and HM-234 will/does work as advertised. ICOM is a great company and top notch radio manufacturer and they stand behind their products.

Berj K
September 21, 2020

Does not work on IC-A6

Crawfordsville M
September 26, 2018


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

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