Motorola HT1250 Pdf User Manuals. View online or download Motorola HT1250 User Manual, Brochure.

Contents • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Waris This was originally put together when I got into the HT1250 200 MHz radios. They modified ok, but the way of doing it as suggested left much to be desired, and the DTMF pad didn't work and the radios were narrow band only.

Over time, I've gotten more into these with the CDM1250/1550 and other waris series radios. I've not seen any of the European ones, but I've been working with the US versions for FM service in ham radio.

What I've found is the radios features are determined by the 'codeplug' settings. This is simply a packed (hex) data written into the eeprom chip of the radio containing tuning, feature and programing data. This is the same area the programing data from CPS is written in, but CPS is unable to change it. The majority of modification of these radios to amateur service is done with modifications to the codeplug.

The codeplug layout appears to be the same for most US versions of the radios, but there are some which are different. Flash adapter for CDM1250 radio 220 HT1250ls and CDM 1550ls This is the same as any other to modify to the amateur service from a software perspective. Sherlock Holmes Game Download Free Full Version. The issue is these radios are narrow band only on the receive path, as the 200 MHz band was never used for 25 KHz channels.

Transmit will support wide band (and must be aligned for wide band first!) The IF filters simply need to be swapped with their wide band parts and wide band receive alignment performed. Hardware Mod Their are 3 filters in the radio, 1 at 44.85 MHz 1st IF and 2 at 455khz, 2nd IF. In a VHF/UHF Waris there is a 15KHz filter at the 1st IF followed by a 15KHz filter at the second IF and then followed by another filter. It's this last filter that is switched between narrow and wide in the VHF/UHF radios.