Batboard

Hello,

Has anyone mixed splinter and non splinter control channel freqs in a smartnet maxtrac?

Thanks,
Tom

The FCC won't assign splinter and non-splinter freqs in the same area so it's highly unlikely the system has that kind of mix. No Motorola radios support it anyway.

We have atleast one system here that does. It is an Astro IMBE system. I don't have the freq's handy but there in the 868 area.

Tom

A few points. I have been working on trying to get the Smatrnet Maxtrac to do both but have not succeded as yet. It can be done because the radio is capable of doing both. The problem is in the control channel section. Some systems still use both regardless of what anyone says. I know because it is being used here in the San Bernadino County system on system 10. When you put in the control chanels and then try to set it for both standard and splinter, the control channels will not stay the same if they are one or the other. I have tried to edit the configuration so this does not happen but have not found the right bytes in the software yet.
Second , such as MTS2000, MTX8000, MT2000, Spectra, Astro, STX, XTS, MCS2000 and a couple of others will do this provided the system configuation with the control channels.
This all stemmed from the early days when 800 trunking first came out and public safty started grabbing what ever was available in there areas. quite a few major cities had to grab channels bellow the 821 band because there were not alwats enough to go around. this has been a big problem in the Southern California area with counties like San Diego, Orange County, Riverside County, San Bernadino County, and Los Angeles County settung up systems on some of the mountain tops which end up covering more than what is needed.
This is why FCC has opened up the 700 band for public saftey.

For Motorola radios: when you choose splinter or standard it should only affect 851.0000 through 865.9875. The 821(866) band doesn't have any type of offset.

Is it possible the Maxtrac won't do 866 freqs? I'm totally unfamiliar with it but can look at a codeplug if someone will send me one.

Another thing I wanted to mention... When frequencies are sent out over the control channel they are represented by a hex number. All frequencies from 851.0125 to 869.0000 have representation. When you select 'splinter' it just offsets the base freq from 851.0125 to 851.0000. Being all freqs in the 866 band have representation, there is no need for splinter to affect them.

Maybe there is something different with the Maxtrac but with all other Motorola radios, they follow the above pattern.

<font size=-1>[ This Message was edited by: Twisted_Pear on 2001-12-13 02:30 ]</font>

I WISH the FCC didnt assign splinter and non splinter. In Houston the County system is a big mess of both varieties as various enteties all assign their freqs to a pool
for a wide area smartzone system. Massive quantities of analog spectras out there working fine. And maxtracs wont. Just the design. Phrawg

If Mexico would frequency coordinate we wouldn't have a problem.