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But the transit system is going to be TDMA. That's been known for quite some time. I actually got those dates above from the project manager. He couldn't give more specific dates because there are no specific dates.

With regards to the county trunked system, I've heard bits and pieces about it and know that nothing is for sure yet. Nexthell was holding up the process for a while.

sorry didnt read metro.

as for the county trunked I put the info in my first post. it is real nextell is paying inventory starts in about 2 months about 1 year out they turn up 700

seriously did no one read my post and just decide to slam it?

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If I had an antenna, I would; but I can only transmit on 160 meters.
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DE K7MHI

Not "slamming" but there are some things said here that do not make sense.

1) Do not confuse re-banding with 700MHz or P25. They are separate issues.
2) We are in the process of re-banding now. Some agencies/systems are slightly ahead of others.
3) As Sean said, we have not agreed to any new frequencies yet.
4) All new (re-banding) frequencies will be 800 band.
5) If you have a list for "post re-banding" it would be interesting to see where it came from. BTW, if it is 700MHz frequencies, then it may be for Metro, but is not for the King County-wide system.
6) I would like to view your list of frequencies and the sites they are supposed to be assigned to.
7) My best guess is it will be 1-2 years before we cut to any new frequencies.
8 ) As Network Manager, I am not aware of any plans to "scrap" the existing system.
9) As Chair of the Region 43 700MHz RPC (Regional Planning Committee), I am not aware of a sufficient quantity of 700MHz frequencies assigned to King County to support radio operations (IE replace the existing 800MHz frequencies).

Wiz
Network Manager
King County Regional System

the info I have was the packet given to network users I assume. with some add on from people in the know.

as you stated the channels are for lower 800mhz and some control channels in the high 700's that I was aware of, but your post does a better job of the re brand 411 post that I tried to start not this giant shit storm of posts.

we got on a tangent of scrapping a system I think I used the term scrap wrong in the 4th post that caused this confusion when I said "scrapped" to use the term the OP did I was replying to

sorry for the confusion on that post which I guess started the mess. also we started off talking KC system (which I equate to TRS for e-comm) then switched to the metro transportation system after that.

_________________
If I had an antenna, I would; but I can only transmit on 160 meters.
_____
DE K7MHI

Interesting. The 800 band is 806/851-809/854 and the 700 band is 769/799-775/805. So if the "low 800" frequencies are below 806, it is the 700 band.

Wiz

your the one on the 700mhz board of directors and knows the proper terms. I am not. I never implied I was stating a fact. When I say LOWER 800 MHZ I mean below 850 ..that help

seriously I give up on trying to defend this thread any more. its just a big pissing match now? WTF?

I AM SORRY I WOULD LIKE TO RECANT ALL POSTS IN THIS THREAD AS I HAVE NO F'N CLUE WHAT I AM TALKING ABOUT.

you win.

_________________
If I had an antenna, I would; but I can only transmit on 160 meters.
_____
DE K7MHI

Good info. All flamage aside, I appreciate the update. Always interesting to hear where things are headed!

what just happened here? WTF? when will my scanner implode and not work for our area is all i want to know.

1-2 years is likely, going by Wiz's point #7.

So when this is all done will we be able to monitor if we have a scanner that has downloaded the new rebanding firmware like the uniden 246T.

Until a shuffled band plan is implemented I don't see why re-banded ready scanners won't work.

Moto vs Everyone else, tonight on FOX
:starwars:

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I taste copper.
Comments, views, opinions - and trails of destruction - are my own.

I will reply so that someone can continue the spud bashing for what ever reason I deserve that on this thread.

I should just paste this block before every post ...

====The information contained in this post is to my understanding and in my own opinion with the limited professional view on the trunking system for king county emergency and public safety. ====

There is no current dates or soft dates in place that will renter your scanner useless with the KC-Trunking system. The upcoming nextel shuffle will be supported by the new firmware if not by the firmware that is already out. at Most the control channels will be in the 7xxx range for some limited groups on the system. In 2 years time this nextel shuffle will be done by today's numbers. The question that I understand is ... if the voice channels are in the current LOWER 800mhz area where currently scanners are blocking "cell frequency" thus causing a issue with the old FCC mandate of blocking cell. So your scanner would not pick up the voice channels because they are in a 800mhz spectrum that is 'blocked' by your scanner. but the 1-2 year timeframe will not be introducing some new trunking format that is not currently supported by something like the BCT15/246 etc today.

ok call me a idiot again...

_________________
If I had an antenna, I would; but I can only transmit on 160 meters.
_____
DE K7MHI

From what I can tell, the only frequencies blocked in the US by ECPA are 824-849 and 869-894 MHz. The output frequencies of the King County trunked system currently occupy two blocks, one from 851.0125 to 854.7375 MHz and the other from 866.0125 to 868.9875 MHz. The effect of rebanding, from a scanner user's point of view, will be to shrink this allocation by consolidating all of its frequencies within the 851.0125 to 853.9875 range. It will not expand or otherwise move into the ECPA-blocked range.

Nextel will then take over the space vacated by the KC trunk system and other users above 861.9875 MHz.

The Motorola Smartnet channel-assignment algorithm will have to change somewhat in order to map talkgroups into the new, smaller allocation. I haven't seen any code or data tables for the new algorithm, or for dealing with any so-called "shuffled band plan" mechanism that some have mentioned in connection with the rebanding process. Presumably the scanner manufacturers are on top of it, though. Either way, all of this stuff is entirely unaffected by cellular-blocking regulations.

Disclaimer: this is my own interpretation of various confusing documents found in random corners of the Intarwebs. It could all be completely wrong. Corrections, additions, and personal insults are always welcome. 8)

The shuffled band plan is not something that is being casually kicked around. It's happening. I'm neck deep in the industry from the command and control equipment perspective (read: dispatch consoles) and it's looking like a killer in those markets. Right now legacy consoles have a foot into Moto systems through a couple different avenues (EFJ-5300 radio, DIU-3000, iRIM etc). Once the modified band plans roll out the only way to do it is with Moto branded equipment since every system will be using a unique 'shuffle key'. 3rd parties may be able to engineer equipment to operate with that band plan but you'll require that special key, the math, in order to properly track the system.

I'm hoping that EFJ gets the engineering license to use the keys in addition to the license they already poses to operate on SN/SZ.

_________________
I taste copper.
Comments, views, opinions - and trails of destruction - are my own.

My observations from this thread:

1. "SpudGunMan": Thanks for your original post--we appreciate your efforts in keeping us informed--even if some of your info is questionable to some. But it seems you are moderately in the know with this issue.

2. The "Radio Elites" on this thread--and I use that term with toungue firmly planted in cheek--flamed-out a little too much. Take it easy folks...

3. I've pretty much stopped asking about re-banding, and how it affects my department. In other words--I'm not holding my breath, and really don't give a f*#k about it anymore. The decision makers on this whole thing will let us know when/if we need to replace our equipment.

4. I'm not going to lose any sleep over it.

CAR

P.S. On a related vane, pehaps the next county-wide system will be designed for in-building coverage. Have my portable showing "out of range" the other day while on the 6th floor of a building during an incident really pissed me off.