Midland GXT550VP4 (7 Channels) 2-Way Radio Logo

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Posted on Sep 12, 2007
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One radio has to be set on channel 3 other on channel 18

My understanding that both radios should be set on the same channel. For my two to work one has to be set on channel 3 the other on channel 18. how can i fix this. no other channel combination will work.

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  • Posted on Sep 13, 2007
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Hi, One way this would be possible is if you have set offset/duplex operation. My understanding however is that this feature is not normally available for this model. Normally Ch3 is 462.6125 and Ch18 is 462.6250, this can either mean that one of the radio has drifted down (frequency) or the other radio up. Since both are still operational albeit the disparity in frequency, what is probably needed is a simple calibration/adjustment of the PLL/VCO's trim capacitor. Of course a frequency counter & a dummy load wattmeter is needed to perform this. I also understand that FCC requires that you be licensed to be able to adjust/calibrate. Hope this be of some help/idea. Post back should you need additional information. Good luck and kind regards.

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