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IC-92 Options - 9/16/2008 2:17:57 PM

n3wcm

Posts: 1
Joined: 9/16/2008
Status: offline

I just bought my IC-92 and already a question. I have read the caution about using the OPC-1797 connector cable with a device having a monaural plug. I have read the list of optional Microphones.
The question: I have a HM-46 Speaker/Mic that I use with my IC-31W31A. Can I use a HM 46 Speaker/Mic with the I-92? I think that I can use the Mic because both the W31 and the 92AD list the HM-75A Speaker/MIc as an option.
Just don't want to see any smoke if I plug it in. . . . .

Post #: 1

RE: IC-92 Options - 10/13/2008 8:54:45 AM

KA0BBQ

Posts: 8
Joined: 5/30/2008
Status: offline

I have used the ICOM HM-46L Speaker Microphone with the OPC-1797 successfully.

The OPC-1797 terminates into two recepticals. One is for the "Miniture" monural 3.5mm (1/8") TS speaker plug and the other is a "Subminiture" stereo 2.5mm (3/32") TRS Microphone plug. "When connecting a monaural plug to 2.5 (d) mm, it acts as a short and becomes a cause of failure." In other words always use accessories which have the "Subminiture" stereo TRS plug to prevent shorts!

I think it goes without saying but I will repeat it anyway... ALWAYS "Turn power OFF when connecting or disconnecting the OPC-1797." or the OPC-1799 Data Communications Cable. This includes pluging the microphone into the OPC-1797 while connected to the radio! Also don't try using TRRS Cables which are common with todays cell phones and Yaesu Handhelds. It two could short the contacts in the OPC-1797 Connection Cable.

TS - Tip Sleeve
TRS - Tip Ring Sleeve
TRRS - Tip Ring Ring Sleeve

Barry Wilson KAØBBQ
ARES CO District 13 Emergency Coordinator
Serving City and County of Denver
barry@americamail.com

Colorado D*STAR - WØCDS
WØCDS++A 1283.9625 -12.00MHz DV
WØCDS++B 446.96250 -5.000MHz DV
WØCDS++C 145.2500 -0.600MH DV
WØCDS++D 1299.9000 Simplex DD

(in reply to n3wcm)

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