Models with a "U" as the 4th character are 800 MHz units and WILL NOT work on 33cm amateur. If the 4th character is a "W", it'll work on 33cm regardless.
Clueless sellers on eBay often site the model # in the listing, but you're only interested in the ID#. Tip: When looking for a 900 MHz radio, look for a "W" as the 4th character in the ID#. SAVE the codeplug and edit from the file for future programming changes.These radios are great performers on 33cm and can be found for cheap on eBay. use the saved file to restore the radio if this happens.ġ2. It will not be bricked, just the information would be lost. Any attempt to read the radio will result in the deletion of all “out of band” frequencies in the radio. TEST AND ALIGN is not required and the radio will perform to 420MHz at full spec.
Read the radio and then start the modification again at step 3.
If you upgrade the firmware you will have to use the recovery option in the CloneEditor which will default the radio back to a basic state. This saved codeplug will now ALWAYS have the modified band split and should be used from now on instead of reading the codeplug from the radio!ġ1. AND SAVE THE FILE (codeplug) under a new, different name IMPORTANT! the next step is to edit your all of your channels/frequencies, contacts etc. Return to your open CPS program, Click on Channels and make some changes in the frequencies, and then back to VXD720 to see if the changes took affect at the “device information” page in the right pane (note the new split - 420 - 512 MHz).ġ0. Click on “Save” (in the Hex software utility) and leave He圎ditor open.ĩ. Keep “datatype” at text-string, check the “unicode string” and “all” boxes, and click “Replace All”Ĩ. Next, press control+R (or edit > replace)ĥ. Launch your hexeditor (HXD.exe), Click on “Extras”, “Open RAM” and then click onĤ. Note the band limits (450.000 - 512.000 MHz) by clicking on VXD720 at the top. Launch the Vertex CloneEditor, Read the radio and save the file. Download and install HXD hex editor, do a Google search.Ģ. Vertex Clone Editor CPS software and the HXD hex editor.ġ. (450-512 MHZ), to be programmed into the amateur 440 band using the These are the instructions for modifying a Vertex VXD-720 high band split radio
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