spectra code error

[mp501mp]

does anyone have or know how to reprogram a spectra uhf 403-430 mhz
with systems 9000 head.
problem is the current mlm board was programmed for 450mhz band but radio is 403mhz hence wont work gives error 0001 or something like that.
any help would be nice.
thanks

ps i have the software

[mp501mp]

oooops forgot it is a 40 watt radio.
thanks

[kc7gr]

does anyone have or know how to reprogram a spectra uhf 403-430 mhz
with systems 9000 head.
problem is the current mlm board was programmed for 450mhz band but radio is 403mhz hence wont work gives error 0001 or something like that.
any help would be nice.
thanks

ps i have the software

You're abusing a very dead equine. This topic has been covered at length in other threads.

In short: Outside of major surgery to the VCO, receiver front end, and RF PA section, it is not possible to make a 403-433 Spectra into a 438-470. This is probably the biggest reason why the government-split units sell so cheaply on Greed-bay.

Sorry to be the bearer of bad news. Oh, FWIW: 'FAIL 001' means synthesizer unlock, which is exactly what you'll get if you try to push an unmodified Range 1 VCO into Range 2.

Keep the peace(es).

[mp501mp]

actually i want to bring it back to 403mhz split .
when i got the radio it had no mlm installed i had to buy one.
i am not trying to modify the band just the code plug file. i read the mod that you all have tried but that is how to convert it to range 2, i need range 1.

the radio needs to tune to 410mhz