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Re: buzzing on radio
Initial suspect would be: 1. Loose speaker grill cover or retaining clips of the speaker itself; 2. You are using CTCSS codes for personal communication and your code number is actually a buzz/tone where the frequency is sub-audible (still could be heard by some though barely). The said tone is super imposed on the voice signal which the radio uses to allow reception. The lowest is 1 which is 67Hz. Some Motorola uses A - 77Hz, B - 88.5, C - 97.4 with the highest at G - 136.5. Alternately, other Motorola models uses #s 1 - 38 corresponding to CTCSS frequencies from 67Hz to 250.3 Hz; or 3. Either of the radio is being charged while operating.
Hope this be of some help/idea. Pls post back how things turned out or should you need additional information.
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It is possible your Code for transmit is different than your Code for receive. Cobra makes so many models, you are not giving enough information. Also, Transmit takes a LOT of power, so even if everything is setup, if your batts are weak or old, the radio will receive, but not transmit. Also check your antenna, make sure it is tight and NEVER transmit without an antenna. Yes, all lights will work even with old batteries.
From reading through your settings, they appear to be identical. Except, I am not certain what Vox 2 is, or B5 0. If the number 2 beside VOX is a setting, you should set it to off or zero. Otherwise, they appear like they should work. (VOX = voice activation, and when enabled will cause a radio to transmit when it hears a sound, voice, etc.)
If you are using an audio device such as an earpiece or headset, be certain you are plugging it in with the radio turned OFF.
Lack of transmit can also be a sign of a bad battery or bad battery connection. You might try swapping the batteries and see if the problem moves to the other radio.
If these are less than one year old, use the number in your user guide to contact Motorola for a possible warranty replacement.
Check your programming, and also check your battery. It will take more energy to transmit than to receive. Sometimes this is simply an indication of a bad battery. If this does not solve the problem, you might want to have your radio serviced. (Current flat rate repair is around $85 at dealers where this model is repaired.)
That means that it will Transmit, like pressing the "Talk" button, BUT ONLY when it hears the "Voice" it was "Trained" on. So this is so No-one else could use this unit. With this method. You "Identify" yourself, and after that every-time you speak, the Transmitter is keyed, and the channel is opened and the voice sent, when you stop talking,it goes back to receive, again. Some are less sophisticated, in that they are really a "Sound Switch" and when the unit "Hears" a "Voice" it, switches OFF receive, and ON the transmitter, and Transmits the audio out.
First I would check the interference code on both radios to see if it is set the same. It is possible you have one set to zero and the other set to another number. This would cause the problem you describe. The interference eliminator is designed to block out transmissions from radios whose settings do not match it.
If all your settings are identical, and you have only 2 radios, it is not possible to tell which one has the problem. You either have one with no transmit or one with no receive. The only way to tell which you have is to get a 3rd radio involved, set to the same settings.
I have never seen this problem before, check if the VOX is activated, this could cause to transmit the radio, but the voice must be transmited.
check if the Accesory connector is not dirty, clogged or damaged