Programming a R1225 from 25khz wide to 12.5 narrow ?

The General forum is where users can discuss any topic regarding Motorola communications equipment - hardware, software, etc. There are also several focused forums on this board, so please take the time to ensure that your questions doesn't fall into one of those categories before posting here!

Moderator: Queue Moderator

Post Reply
Satelite
Posts: 672
Joined: Sat Aug 12, 2006 10:43 am

Programming a R1225 from 25khz wide to 12.5 narrow ?

Post by Satelite »

Hello;
I have a Motorola r1225 uhf repeater coming in a day or so that was operating at 25 kHz wide band.
The license has been modified several months back and now before harvest gets going he wants it programmed for 12.5 narrow band.
Its been awhile since I did a r1225 but my question is .
After reading the r1225 repeater is changing the 25 kHz option to and selecting the 12.5 kHz option all you have to do to put the r1225 on 12.5 narrow band operation ?
Ill obviously check it per the service monitor but is that the only thing that needs changed to go to 12.5 narrow band ?
Thank You
Satelite
KG4INW
Posts: 285
Joined: Thu May 22, 2008 3:31 pm
What radios do you own?: Not enough apparently!

Re: Programming a R1225 from 25khz wide to 12.5 narrow ?

Post by KG4INW »

Yep, that's it, simple.
Satelite
Posts: 672
Joined: Sat Aug 12, 2006 10:43 am

Re: Programming a R1225 from 25khz wide to 12.5 narrow ?

Post by Satelite »

Hello:
Cool that's what my memory was telling me but it seemed too easy.
Thank you for the reply.
Satelite
User avatar
escomm
Queue Moderator
Posts: 5170
Joined: Fri Mar 24, 2006 8:24 pm

Re: Programming a R1225 from 25khz wide to 12.5 narrow ?

Post by escomm »

I would recommend a realignment of the station after the reprogramming, especially the oscillator since being off-frequency is much more likely to cause negative performance in narrow vs. wide
KG4INW
Posts: 285
Joined: Thu May 22, 2008 3:31 pm
What radios do you own?: Not enough apparently!

Re: Programming a R1225 from 25khz wide to 12.5 narrow ?

Post by KG4INW »

escomm gives sage advice, which didn't occur to me yesterday but as far as programming for NB, it's easy.
User avatar
Bill_G
Posts: 3087
Joined: Thu Sep 17, 2009 5:00 am

Re: Programming a R1225 from 25khz wide to 12.5 narrow ?

Post by Bill_G »

Yep. Align it. As we were pushing through narrowbanding last year for our customers, maybe six out of ten could have gotten away with just programming. Maybe closer to 50/50. Most of the time the NB deviation settings were too low - could hardly hear a word they said. But then you'd run across one that someone tuned the wrong section years ago setting them LOUD which came through as distorted crackle on the system. Pretty horrible sounding. It was as simple as program the radio, and check it on the service monitor.
PETNRDX
Posts: 872
Joined: Sun Nov 25, 2001 4:00 pm
What radios do you own?: Too many

Re: Programming a R1225 from 25khz wide to 12.5 narrow ?

Post by PETNRDX »

I ABSOLUTELY agree that it is best to check alignment after programming.
I found many radios that the dev was too low.
Keeps the radio within the "mask" but seriously affected coverage.
Steve K.
Post Reply

Return to “General Motorola Solutions & Legacy Radio Discussion”