Question about Motorola HT1000, MTS2000, MTX8000/9000 Compatible 2 Way Radio Battery Eliminator

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HT 1000, MT1000, Radius P110 Tx problems

I have a problem, all (3) models Mt 1000 Ht 1000, and P110's will recv fine but will not Tx. You can hear the channel clear, but thats it. Tried new batteries, ran older batteries thru BMS (trianalyzer). Still same problem. My question= Can Tx freq be knocked out of whack alone? Or will both Tx and Rx freq's be affected and knocked out of whack?

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  • eradiostore
    eradiostore May 11, 2010


    Did these radios Tx previously? Did this problem just arise?

    Have you tried transmitting to another unit which is in open squelch mode? (Depress the monitor button on the Rx-ing unit and see if you can transmit to it.)

    Are you trying these radios with a known-good radio, one which will both Tx and Rx? Or only with one another?


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Sounds like if you had them reprogrammed you might want to look at the "Transmit Shifting" A few years ago the FCC changed the shifting on somebands to tighten them up. Also if your not running a repeater and someone programmed it to shift in transmit then that, can be a problem. Also if your radios are programmed with a PL transmit and receive tone and they don't match then that's a cause.... If you can give more information on what frequencies, PL's, repeater your using would be a great help. Example.... Transmit 468.500, Receive 463.500, PL transmit & receive tone 100.
A slip of a number or PL tone will cause you a headache....

Posted on Oct 30, 2008

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No, it is not likely 3 radios, different models would have the same problem at the same time, unless the circumstance were the same to damage each one. The answer to your frequency out of whack question is yes and no. If you have had the radios recently reprogrammed using Motorola software, it is possible the Tx side was reprogrammed incorrectly. Conversely, if you have not had the frequency altered by programming, NO it is not likely 3 different radios would fail in the same way, at the same time.

Likely causes to your problem:
1) Bad batteries. It takes more energy to Tx than to Rx. Check your date codes. On the 3-digit date codes, the first number is the year, followed by the week of the year 840 is 2008 the 40th week. 4-digit date codes read 0840, the first two numbers are the year, followed by the week. Batteries last approx. 18-24 months.
2) A lightning strike or power surge while on the charger, might cause damage to all your units at the same time. Less likely to cause lack of Tx unless they were turned on while charging or if you accidentally depress the PTT while the radio is on the charger and turned on. (This is a big no-no)
3) Your radios operate through a repeater tower and you are out of range, or the repeater is down.
4) You are simply on the wrong channel.
5) Bad re-programming.
6) Recent antenna change to the wrong antenna style.

Try a known good battery on the radio and see if it solves the problem. Think through, what have you changed since last use. Have they been in to a dealership, could the programming have been changed? Have you moved and are no longer in range of a repeater (if you use one)? Try going open squelch as previously described and report back your findings.

Posted on Oct 05, 2008

Sorry about taking so long to respond. These radios have worked properly in the past. They have increasingly become worse to the point they will not Tx. I have tried to com-cate with a good radio but unsucc. I'm thinking the Tx freq has been altered? Can one freq (Tx) be altered and not the other (Rx) or will both become altered?

Posted on Oct 05, 2008

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