Question about Motorola Talkabout T5100 (14 Channels) 2-Way Radio

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How can I increase the volume of the radio

The volume is very low and the batteries are good please advise

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Check the grill in front of the speaker area for debris or plugged holes. Check the transmitting radio for debris blocking the mic hole. When turning volume up on the radio, do not max out the volume knob, back it off slightly for best sound. If these do not help, your radio is probably malfunctioning and needs replaced.

Posted on Jan 05, 2009

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The internal speaker probably got wet. Repair would cost as much or more than a new pair.

Posted on Jan 04, 2009

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Turn up the volume all the way on the radio!

Posted on Jan 09, 2009

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1 Answer

Every time I press the talk button the radios show low battery icon and I'm not able to transmit on either radio. How can I rectify this problem?


Are you SURE that your batteries are up to snuff? I.E. when they have a light current load on them they are ok but as soon as you try to increase that current load they die off quickly. With two-way radios, the actual current drain depends on whether you are transmitting or in standby (receive) mode. Transmitting requires significantly more current than standby mode. So, I would look at what kind of batteries you are using. If they are a good name brand alkaline, check to see if they measure close to 1.5 volts with a voltmeter or check them with a battery tester to ensure they are good. If they are ni-cad or ni-mh rechargeable batteries, make sure they are rated at least 1200 mah (milliamp hour). I use Sanyo eneloop rechargeable batteries. They last a long time for me. One other thing, make sure your battery compartment is clean and there is no corrosion on the contacts the batteries are placed into.

Hope this helps,

Sep 08, 2014 | Uniden Radio Communications

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Uniden uho36sx

Check the "settings". You may have it set so the volume buttons only adjust the beeps. I've seen this happen on a couple of different units.

Apr 30, 2014 | Radio Communications

1 Answer

Low outgoing transmission volume

Check to see your radio and the other radios are the same as to narrowband and wideband. A narrowband channel spacing radio will talk more softly to other radios which remain on the older wideband channel spacing. In the USA, all radios (with a few exceptions) were required to change to narrowband by Jan. 2013.

Another problem which commonly occurs comes from something (tape, sticker or debris) covering the mic hole on the transmitting radio. Look at the face of your radio and try to determine where the mic hole is, and then check it for obstructions.

Lastly, you can check the setting of your Mic Gain on radios equipped with this user programmable feature. Generally this setting offers the numbers 1, 2, or 3. Experiment to see which setting is best for your voice type.

Best regards.

Feb 11, 2014 | Radio Communications

1 Answer

Sound volume is very low in one of the units. battery power shows three bars.

You do not mention how many units you are using, so first if you have only two radios, check the mic hole on the 'good' radio to see if it is clogged with dirt or debris. On the radio with poor volume, try the volume knob at different settings. Example: turn it up to full volume then incrementally back it off a quarter turn to see if you find a 'sweet spot'. The volume potentiometer is a common failure part on this model. The other issue you could be having is bad speaker. If this is the case, the radio would need to be repaired by a trained service technician. (Flat rate repair on this unit can usually be found for around $69) Lastly, you might check your programming to see if you have something set incorrectly, or if you might be on a nearby frequency instead of exactly the same. For your convenience here is a link to the manual:

Best regards.

May 25, 2011 | Motorola Talkabout T7200 (22 Channels)...

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Voice problem

its a new one so change it its a cell phone problem

May 07, 2010 | Ericsson GE- MRK. Compatible ACT iCHARGE...

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President Harry 2 classic does not listen (receive)

Hi and welcome to FixYa,

Initial tests:
  • if there is likewise no TX modulation, check / replace audio IC4 TDA1905;
  • if RX signal strength (S meter reading) is low, check RX + 8VDC;
  • try using an external speaker in case of a faulty internal speaker;
  • exercise the AM/FM switch.
If all of the above checks good, then signal tracing from the front end down to the audio amp. Would the schematics help?


Good luck and thank you for asking FixYa.

Jan 30, 2010 | Radio Communications

1 Answer

Low volume on speakers

You have posted this question under the heading for the Motorola SP50 battery pack. I will assume you are referring to the SP50 radio. Check your radio's grill to be certain it is clear of debris. Was this radio previously working correctly? If so, that eliminates a programming or narrowband-wideband issue. If the radio is new to the group, you might check the programming and verify if the others in your workgroup are narrow or wideband. Two common failure parts which could effect the sound coming from the speaker would be the volume potentiometer (the part your volume knob sets on top of), and the speaker itself. It is possible your radio may need repair. In most cases this style radio is repairable for approx. $85 flat rate.

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If you are talking about a new from the factory radio, there is no way to increase volume. If you are talking about an existing radio which has lost volume over time, short of cleaning the grill of debris, and using a known good battery, there is no fix for low receive audio.

Jun 28, 2009 | Motorola Talkabout T6200 (14 Channels)...

1 Answer

Very low volume on T5210

Sorry to hear of your difficulty. There are a few things which come to mind. First, if you have only two radios, check the good radio to see if anything is plugging or covering the mic hole. Then if the good radio is not the problem, check the bad radio for debris or something covering the speaker holes. If this does not reveal a problem, the next issues are possible, but not resolveable: You either have a bad volume potentiometer (internal volume device) or your speaker is bad.

May 25, 2009 | Motorola Talkabout T5210 2-Way Radio

1 Answer

Short Battery Charge

Hello Dave2794875,

According to manufacturer specifications the NiMH rechargeable batteries should provide about 12 hours of operating time assuming a 90/5/5 operating cycle (90% standby, 5% receive, and 5% transmit). Theoretically, decreasing the volume can help somewhat but should have a minimal effect.

If you are only seeing two hours of standby time then you are definitely not getting the specified amount of time. This could be indicative of a problem with the charger or the battery pack or both.

Using disposable alkaline AAA batteries, you should see an increase in operating time because alkaline batteries have more capacity and last longer then rechargeable batteries. However, if yu do a lot of operating the cost of disposable AAAs can add up fast. For most users the rechargeable batteries are much less expensive in the long run. If you only use the radio occasionally then alkaline batteries are the way to go.

Hope this helps,
"Go Ahead. Use Us."

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