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CP200 XLS Band Split Changes

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CChamblee25

CChamblee25

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Feb 5, 2021
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I have a CP200XLS, PN H50SDH9AA6AN. It is equipped for 465 MHz to 495 MHz (UHF3). Does anyone know a way to open the bandwidth to cover the UHF1 frequencies? I'd even settle for UHF2. I've used hex edits for the Waris line of radios (HT750, HT1250) to do this, but haven't found any tools to modify the CP200, or Commercial series. Any help would be appreciated.
 
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FormerSoCalradioBenchTec

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Oct 3, 2020
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there isn't a hex edit available to do what you want to do.
1. The board design will not allow it to be expanded beyond the stated bandwidth.
2. On few models I heard of that could be hacked were made back in the Late 80's early 90's and were wideband (25 KHz) only.
And could only be shifted down approx 1 MHz below bandwith any lower risked bricking the unit.
And they were not CP200's or HT 750/1250's.
Also there are internal differences in the firmware between 3 models that govern the tuning range of the alignment.
If you need 440 see list below.

AAH50QDH9AA6AN CP200XLS, 403-440 MHz, 4W, 128 Ch. Full Keypad Model
AAH50RDH9AA6AN CP200XLS, 438-470 MHz, 4 W, 128Ch. Full Keypad Model
AAH50SDH9AA6AN CP200XLS 465-495 MHz, 4 W, 128Ch. Full Keypad Model
 
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