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Anyone have any experience with this radio? One of mine (UHF model) is messing with my head. Even with a full battery, and any battery I choose to attach, it thinks that the batteries are low. After every transmission, I get the the 'low battery' chirp and "BATT" flashes on the display.

Thoughts?

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President-in-Exile, Seattle Area Radio Communications And Scanner Traffic Intercept Crew (SARCASTIC)
Don't feel bad if you can't use your STD100/200; there are still people using Digital Frequency Search!
Bunnery definition for the under-fives

This guy may be able to help :D

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" SILENCE IS CONSENT "

Made to Government Specs:
1) Measured with a micrometer.
2) Marked with a chalk.
3) Cut with an axe.

Jim N7UAP - Bellingham, WA / InterceptRadio.com

or this?

you sure your batts good? you have a smart charger that will give you feedback on the charge to see if its still taking a full charge and discharge as spec?

this is what I usehttp://www.rcuniverse.com/magazine/n ... ct_id=1644

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If I had an antenna, I would; but I can only transmit on 160 meters.
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DE K7MHI

The batteries are good; I use them in other radios all the time. It's just the UHF model that's having a fit.

_________________
President-in-Exile, Seattle Area Radio Communications And Scanner Traffic Intercept Crew (SARCASTIC)
Don't feel bad if you can't use your STD100/200; there are still people using Digital Frequency Search!
Bunnery definition for the under-fives

Found a few things...

http://www.fixya.com/support/t1773001-m ... eeps_comes

http://www.eham.net/reviews/detail/1295

_________________
" SILENCE IS CONSENT "

Made to Government Specs:
1) Measured with a micrometer.
2) Marked with a chalk.
3) Cut with an axe.

Jim N7UAP - Bellingham, WA / InterceptRadio.com

They all do that.








:chaingun:

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Did you read where he said ?


I have zero repair experience with the GP68's, but here is a few suggestion.

The first thing I would do is clean the battery contacts, and terminals (they are gold so do not use any abrasive, or rubbing alcohol). If no joy with that then hook the radio up to a bench power supply and see what the current draw is and confirm that is within specs. Assuming it is a 7.2 volt battery pack you should not see over 2 amps at 7.5 volts in TX. If it is pulling more current than that then it is probably not the low battery waring circuit. If it is not pulling to much current then slowly lower the voltage as you TX (into a dummy load, or service monitor) and see where it gives you the low battery warning.

If you have the RSS check to see if there is a low battery voltage adjustment in the service mode (if there is even a service mode in the RSS for this unit). If there is a low battery setting then hook it up to a bench power supply and set it according to the service manual specs. If no manual I would set it around 6.5 to 6.8 volts (assuming it is a 7.2 volt battery,). Most Motorola's like to have the low battery warning to come on with a voltage of about 1.1, or even 1.15 volts per cell, most other manufactures take it down to 1.0 volts per cell. Never set it below 1.0 volt per cell as that is a good way to ruin your battery pack.

Feel free to drop me a PM if you have any more questions or need further help.


Jim

I don't know these radios, but I do know another manufacturer uses a pin in gthe battery compartment to "sense" the difference between a standard batt and a AA/AAA pack. When the AA pack is in use, the radio is forced to low power.

On the battery side, the plate that makes contact with the sense pin is held at minus VDC.

Does this radio do anything like this?