Question about Uniden Hand Held Scanner - BC-246T 2-Way Radio

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Uniden uh038sx 2

Tx stays on how do i fix

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Your radio is either stuck in VOX mode, or has a bad PTT button. Sometimes when using an audio device a radio will stick in Tx if the device is plugged in while the radio is turned on. When using any remote mic, earpiece, headset, or audio device be certain the radio is turned off when plugging or unplugging the device.

If no audio device is being used, the next possibility is a sticky or bad PTT button. This can sometimes be just the external button sticking, or it can be the internal button has simply worn out from repeated use.

One final thought, if your radio has programmable VOX, check to see if your programming is correct. VOX features when turned on make the radio Tx when it hears any sound, a voice or ambient noise can cause the radio to transmit.

Best regards.

Posted on Sep 28, 2013

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Posted on Jan 02, 2017

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Hi,

Initially, pls check/clean your antenna, mount, coaxial cable, RF connector, power leads, grounding straps.

Based on your post description, a couple of ideas:
1. Since you receive OK, chances are the antenna/cable is good. You verify though with an SWR meter;
2. Since TX light comes on, looks like the mic, PTT and coiled cord are all OK;
3. All else works but no one can hear you, you have no power output. Use an RF wattmeter with dummy load to verify that you are pushing at least 25 watts. In the absence of a power meter, the SWR would also do or even an indication of a significant current flow to the radio ( use an inline ammeter) would indicate power.
As you will note, some specialized instruments are needed. Perhaps your best bet would be to seek the services of a qualified communications technician. TMore often it is the finals or power pack that fails resulting in no TX. In some cases, it is either the RF diode or the power regulator that causes no TX. It may also be worth your while to do a full check over of your antenna system.

Hope this be of some help. Pls post back how things turns up or should you need additional information.

Good luck and kind regards.

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