Question about Midland GXT550VP4 (7 Channels) 2-Way Radio
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.
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.
Posted on Sep 13, 2007
Tips for a great answer:
Setting a Channel
Your radio has 22 channels. Channels 1-7 and 15-22 are 1 watt. Channels 8-14 are
0.5 watt. When the radio is on a 1 watt channel, displays. When the radio is on
a 0.5 watt channel, displays.
1. With the radio on, press . The current channel flashes.
2. Press or to set the channel.
3. Press to save the channel setting. You have a pretty straight forward Low wattage FM Walki/Talki
I would have them returned or replaced.
If you can not transmitt on one to the other
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Reset to Factory Defaults (Pg. 34)
Reset to Factory Defaults will set back all radio
features to the original factory default settings.
To do so, press PTT, SB2 and SB1
simultaneously while turning ON the radio until
you hear a high tone chirp.
Here is a link to the user guide: http://www.twowayradiosfor.com/pdf/RDX-Non-Display-manual.pdf
Programming instructions begin on page 36.
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