motorola band limits

[svfd17]

Wirelessly posted (BlackBerry8530/5.0.0.654 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/389)

Hi, I have a question regarding motorola ht/ex series radios, a radio that is 403-470 how far into the 470 band can it be programmed to? Thanks.

 

[mmckenna]

The programming software will only let you program up to 470.000000MHz, and nothing above that. Some radios/RSS/CPS have tricks that will let you program frequencies out of the band split, but I think most of the newer stuff doesn't allow that. There are some tricks where you can get in a do some hex editing and move the limits around, but if you get too far away from the original limits, you'll have issues where the VCOs wont lock up and your radio will bonk on you. Depending on the exact radio you can sometimes get them a bit out of band without having to do a VCO adjust. Unless you have the right test equipment and are really comfortable doing the hex editing, it would be better to just get a radio in the correct band split you need.

 

[62Truck]

There are some tricks out there. I have a 450-527 split HT1250 and was able to get it to program down to 440 with out a problem. There is a thread on p25.ca that has a "how to" to mod that series radio. It requires some hex editing of the programming software.


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[svfd17]

Wirelessly posted (BlackBerry8530/5.0.0.654 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/389)

Thank you for your replies.