MRK UHF out of band

radio259 · Post by **radio259** » Wed Aug 17, 2005 8:51 pm

Any way to get a 440-470 MRK ll to go to 474.## transmit and 471.## receive on two freqs???

i have both the programmer, ( newer software,) and the older Orion/MRK software.

Thanks greatly in advance.

Paul B

Meatball · Post by **Meatball** » Thu Mar 30, 2006 1:45 am

The old DOS software and the suitcase programmer always had little tricks to put out of band frequencies into the radio. I don't know about Windows ProGrammer (never tried putting out of band freqs in with that), but often in the DOS programs if you pressed INSERT (instead of Return) after entering the frequency, it would take it. Sometimes it was CTRL+I, just I, or some other weird key combination.

There were a lot of hams in Lynchburg and I suspect they kept this little "back door" open so they could put in ham frequencies

n9llo · Post by **n9llo** » Thu Mar 30, 2006 7:43 am

The "INSERT" trick never worked with EDACS 3 dos programmer for the M-RK. If you are determined enough you can hex edit the codeplug. The frequency is defined as the number of steps from the base freq (low end of the radios bandsplit). I did this once to get the NWS frequencies in my 136-150 M-RK. I really didn't keep notes so dont ask me to recreate my work for a UHF radio, you are on your own. You must use EDACS 3 to program in your modified codeplug as Programmer will flag the out of band freqs and terminate the load.

Chris
N9LLO