Waris/Professional Series

Mobiles

CDM Series

• Instructions for modifying a CDM1250 to 222MHz - From W5TXR.net Thanks Mark!!

This lays out the basic steps for changing band edge information in a WARIS radio. Useful information for other haX0ring inside these WARIS units.

CM/PM Series

Nothing yet....

Portables

HT750/1250/1550

Converting HT750 Lowband 35-50MHZ to 6M

Huge thanks to Bryan W9CR for publishing all his amazing work in diving into these radios. Most of this information is a mimeograph of his work.
I was given a HT750 Lowband R2 (35-50MHz/PMUB1026A/AAH25CEC9AA3AN) that had a corrupt codeplug and would not read or write with CPS. I also had a HT1250 Lowband R2 (from eBay) that was purchased as a parts unit and probably has a bad AT49LV001 flash IC and wasn't worth the trouble repairing. I used the functional HT750 board and the HT1250 limited keypad and display housing to make a good unit that only had a EEPROM CS ERROR problem. Easy fix!!
I played around with several TANAPAs and found PMUB1023A (xxH25CEH9AA6xx) to be what I wanted and used US Waris CodeplugTool to blast from 0x000h-0x2FFh into the target Franken-Radio. I now had a functional HT1250 Limited Keypad Lowband Radio!! The problem is, NCSHP is no longer on 42MHz and I have no other use for radios in this frequency range. Time to make this radio useful again!!

• Moving up the street 5MHz

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