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Author Topic: Power problem?  (Read 898 times)
KB3DLP
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« on: June 18, 2003, 04:05:09 AM »

Was wondering:
I use an Icom T81A quad bander HT. I have bought a RS DC cigarette lighter power cord for it (the one with the changable polarity, and tips). It worked great for about 5 weeks. Now all of the sudden when it's pluged into the HT, the HT at times will not recieve...well it recieves, but pushes no audio through the speaker. Was wondering if anyone had any clue why.

Specs: 6 to 10.5 VDC selectable
Correct sized pin, correct polarity
12VDC cigarette lighter in vehicle
93 Geo Tracker is the vehicle
10.5VDC is selected on the selector
Using a cell look alike dual band 2m/70cm mag mount, mounted on a home made light bar in center of vehicle.
Tracker is a soft top

Not sure of any other factors to list, looking for any information to hopefully solve this problem, it's annoying to charge it at work, and at home just to use it mobile.
Thank you in advance,
Jeremy KB3DLP
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K0BG
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« Reply #1 on: June 18, 2003, 09:44:48 AM »

Have you measured the output voltage? If you have, is it in the ballpark?

Alan, KØBG
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KB3DLP
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« Reply #2 on: June 18, 2003, 10:01:02 PM »

Power coming out of the cigarette lighter plug is 12.2 volts, and coming out of the adapter is 10.4. So they're fairly close to where they should be.
Jeremy KB3DLP
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K0BG
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« Reply #3 on: June 19, 2003, 09:39:49 AM »

You should see about 13.6 to 14.6 volts with the engine running. Unless the battery is dead, it'll never read 12.2 volts at rest. Further, you should measure the voltage while it is connected to the radio. It just could be that the voltage regulator is not working correctly and thus dropping the voltage too low.

Alan, KØBG
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