I was recently given a pair of GP300 HTs and am trying to get them reprogrammed for some new hams in the area.
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I have the programmer and RSS and can download the codeplug.? But, these are 398-443 MHz RX radios (P94YPC20C1) and won't allow me to put the Amateur repeater frequencies in.
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I've tried the Shift key trick when entering frequencies to no avail (have used this successfully on Radius and GM300 models).? Even tried using a Hex editor and directions I found here to alter the ID bit associated with the model.
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Neither works.
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Any thoughts on what to try next?
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ron
