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Combiner.

Posted: Wed Apr 02, 2003 12:19 am
by Cowthief
Hello.

on 800MHz, combiners are easy to deal with, there is always a 45MHz split.
The narrow band on UHF/VHF issue, might be addressed in the same way, we will need to see what the FCC is going to do.
The Nextel problem is a classic example of why we should consider staggering the bands, that is to say, PS in one part, SMR(s)"nextel", in another.
When 800 first opened, this was the plan, and it works, cellular phones and trunking were/are at least 20MHz apart, SMRs and PS was at least 6MHz apart, now you can have a nextel channel a few KHz away.

Thank You.

Re: Narrowband mandate..

Posted: Sun Nov 29, 2009 9:27 pm
by adlertom
Hartley wrote: I don't see why:

1. Motorola would need to have a Quantar/Astro Spectra replacement Type Certified by 1/1/2005? These radios are already Certified, and could be sold until 1/1/2008. If they wanted to sell 'em after that, they would have to mod the software to prohibit wideband operation - not difficult, IMHO. Any NEW radio they were looking at Type Certifying after 1/1/2005 would have to to be narrowband only, of course.
So, do I understand correctly that a Quantar purchased today cannot be programmed for wideband operation? Even if the customer just wants to use wideband mode until 2013, then go to narrowband?

Re: FCC Narrow Band Ruling

Posted: Mon Nov 30, 2009 5:43 am
by Bill_G
New license and new service, or existing license with a replacement base station? If they can demonstrate they are progressing towards a narrowband solution, they can probably replace a failed station with a wink and a nod.

Re: FCC Narrow Band Ruling

Posted: Mon Nov 30, 2009 7:13 am
by adlertom
Bill_G wrote:New license and new service, or existing license with a replacement base station? If they can demonstrate they are progressing towards a narrowband solution, they can probably replace a failed station with a wink and a nod.
An existing service and license (police department). New location however, we're building a new HQ a few blocks away from the old one (and will be modifying the licenses to reflect the new latitude/longitude).

We still have some wideband mobiles and won't be replacing them for about a year. Narrowband portables will come a few months sooner. We'll have a new Quantar repeater when the new portables come. So, for a few months we'll have a mix of wideband mobiles and narrowband portables.

Re: FCC Narrow Band Ruling

Posted: Mon Nov 30, 2009 8:25 am
by Bill_G
Then by all means make the license modification when the time comes, install the equipment, and put one foot in front of the other. Make them aware that all equipment will be operating wideband until everything is updated. Then they can make the switch to analog narrow. If your company has a licensing specialist, bring them up to date, and have them sign off on the strategy.

Re: FCC Narrow Band Ruling

Posted: Mon Nov 30, 2009 9:38 am
by Hartley
Wow, a thread from the dawn of time..:-)

AFAIK, the current Quantar product can be programmed for wideband just fine - it's right there in the CPS. Motorola is still selling Quantar - I understand the replacement is having some sort of issues, but I really don't know.
I also believe that most of the analog-capable products can also be programmed for wideband - for sure the XTS-series can. Any radio that is certified for part 87 (Marine) use will have wideband capability for some time to come.

73 DE Hartley

Re: FCC Narrow Band Ruling

Posted: Mon Nov 30, 2009 4:38 pm
by KitN1MCC
i heard a rumor of a possible push back to 2020 now seeing how a a lot of towns do not have the money to go narrow band.

Re: FCC Narrow Band Ruling

Posted: Mon Nov 30, 2009 4:58 pm
by Bill_G
Don't hold your breath. A year or two push out maybe. A seven year push out, not likely. My crystal ball is as good as anybody elses.

Re: Narrowband mandate..

Posted: Tue Dec 01, 2009 4:38 pm
by txshooter
adlertom wrote:
Hartley wrote: I don't see why:

1. Motorola would need to have a Quantar/Astro Spectra replacement Type Certified by 1/1/2005? These radios are already Certified, and could be sold until 1/1/2008. If they wanted to sell 'em after that, they would have to mod the software to prohibit wideband operation - not difficult, IMHO. Any NEW radio they were looking at Type Certifying after 1/1/2005 would have to to be narrowband only, of course.
So, do I understand correctly that a Quantar purchased today cannot be programmed for wideband operation? Even if the customer just wants to use wideband mode until 2013, then go to narrowband?

Do you realize you have brought up a thread that is over 5 1/2 years old......

Might have been better to start a new topic asking a question concerning this than to bring up a old thread...

Re: Narrowband mandate..

Posted: Tue Dec 01, 2009 5:09 pm
by adlertom
txshooter wrote:Do you realize you have brought up a thread that is over 5 1/2 years old......

Yes I do. The earlier discussions in this thread were germane to my question.