Question about Motorola Spirit HP 2-Way Radio

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Buzzing on radio

When we transmit to another radio you hear a buzzing along with the voice transmission

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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.

Good luck and kind regards.

Posted on Nov 08, 2007

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