UHF Business band to 6.25 ???

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

UHF Business band to 6.25 ???

Post by Satelite »

Hello:
Just read the posting below that mentions rail roads going to 6.26 splits.
Is this also true for the 450 to 470 mhz band ?
I know we need to eventualy go to 12.5 narrow band in 2011 or 2013 as i recall.
Im asking because i was thinking about getting a few M1225 mobiles and they only do the 12.5 split and not a 6.25 split.
Do i need to rethink my radios capabilities or am i safe in assuming at the moment that the 12.5 M1225 will still meet any known future FCC requiements per the narrow band ruling as we know at the moment ?
Thank you.
Satelite
Grog
On Moderation
Posts: 783
Joined: Sat Nov 17, 2001 4:00 pm

Re: UHF Business band to 6.25 ???

Post by Grog »

One thing to consider is you're talking about a radio that would cost $200 at the most, so you will likely get several years of use before any deadlines finally get here.

What are you using the radios for? It might not effect you for awhile.
Satelite
Posts: 672
Joined: Sat Aug 12, 2006 10:43 am

Re: UHF Business band to 6.25 ???

Post by Satelite »

Hello :
The radios at the moment are used for business band.
I realize that they are cheaper and i could use them for awhile at 12.5 narrow band.
But if i update the repeater to 12.5 narrow band and the FCC later on says 6.25 khz then i possibly wasted some time and money.
What im wondering is did they start anything about 6.25 khz splits for the 460 mhz area on business band and if so did they impliment a date of compliance for the 6.25 khz.
Or are they just bumping there gums about it for the moment?
Thank you.
Satelite
User avatar
escomm
Queue Moderator
Posts: 5170
Joined: Fri Mar 24, 2006 8:24 pm

Re: UHF Business band to 6.25 ???

Post by escomm »

The FCC has not mandated that business band move to 6.25KHz. The FCC has acknowledged that the technology is insufficient to support such a transition.
Satelite
Posts: 672
Joined: Sat Aug 12, 2006 10:43 am

Re: UHF Business band to 6.25 ???

Post by Satelite »

Hello:
Thank you for saying that.
I was hoping i wasnt wasting my time and money for the moment .
I thought i had read the very same statement you just posted and that makes me feel much better about it.
Thank you.
satelite
RKG
Posts: 2629
Joined: Mon Dec 10, 2001 4:00 pm

Re: UHF Business band to 6.25 ???

Post by RKG »

escomm wrote:The FCC has not mandated that business band move to 6.25KHz. The FCC has acknowledged that the technology is insufficient to support such a transition.
Correct, but add "at the moment." On the business side, Motorola is pushing MotoTRBO as "6.25 KHz equivalent" (two TDMA digital channels on 12.5 KHz physical channel), in large part because having trouble achieving reliable 6.25 KHz hardware performance.
User avatar
escomm
Queue Moderator
Posts: 5170
Joined: Fri Mar 24, 2006 8:24 pm

Re: UHF Business band to 6.25 ???

Post by escomm »

RKG wrote:
escomm wrote:The FCC has not mandated that business band move to 6.25KHz. The FCC has acknowledged that the technology is insufficient to support such a transition.
Correct, but add "at the moment." On the business side, Motorola is pushing MotoTRBO as "6.25 KHz equivalent" (two TDMA digital channels on 12.5 KHz physical channel), in large part because having trouble achieving reliable 6.25 KHz hardware performance.
The FCC will not be able to force anyone to go to TDMA, since it physically uses the same spectrum as a 12.5KHz channel, even if only one timeslot is being used.

Whether the technology for 6.25KHz spacing ever matures to the point of deployment is debatable. I doubt that it will happen any time soon. The technology just isn't there, it doesn't work up to par with 12.5KHz spacing. Even if it does there will be large issues, as just about every two-way user in the US would have to upgrade.
User avatar
Bat2way
Posts: 183
Joined: Tue Sep 04, 2001 4:00 pm

Just like the P1225 push...

Post by Bat2way »

MSS sales people sold the P1225 as a unit "mandated" by the FCC....etc...etc...

Forget about ANY mandates coming from the FCC about you throwing away your 12.5kc split radios. Still going strong here with the 25kc stuff.
Post Reply

Return to “General Motorola Solutions & Legacy Radio Discussion”