[TrunkCom] Nextel Digital system

[b52hbuff@att.net]

...nice story, but there is a new wrinkle in the story.

Adding Mhz to scanners, say from VHF-lo to T-band and 
then to 800MHz wasn't a big trick.  Wait for component
manufacturers to build the parts and you're all set.

The trunking was a bit more involved because there was
'digital' technology involved.  However, by and large
the modulation has remained analog.

When we move into totally digital systems, the game
changes.  Now, it's not a 'component' issue, but a
patent or even algorithmic issue.  Once you transform
voice into a series of digital bits, there is no limit
to what can be done.

Sure Uniden has release an APCO-25 radio.  How long do
you think it'll take to come out with a radio that
decodes triple DES in real time?

...good luck charlie...

As far as I can see there are only two issues that need
to be resolved.  The first is reliable digital 
transmission.  My understanding is that since digital
modulation has issues with 'all or none' decoding and
multiple voting sites, it still isn't a slam dunk.

Note that cost is also an issue, but components always
get cheaper and cheaper.

Anyway, when the gain of digital modulation outweighs
the pain...  All you'll be left to scan is FRS.
>  So right now the Nextel system is being used by cell phone service, but it 
> might move into the public safety band. So you cannot monitor Nextel, and the 
> scanners in the future will not be able to monitor a Nextel system if it goes 
> into the public safety band. I remember in the early 90s, people said there 
> is no way a trunked system could be monitored. Scanning as a hobby as we know 
> would be gone. Then the same companies that made the trunked systems sold its 
> secrets to the scanner companies. I think this whole trunked system service 
> is just a cat and mouse game being played between use the scanner listeners 
> and the companies that build these systems, its all about money. They build a 
> new system that cannot be monitored, then later on they sell the secrets of 
> the system to the companies that build scanners (for a pretty penny ), then a 
> new scanner comes out that can monitor it, then all of us hobbyist run out to 
> buy it. Then something else will come out. It keep's going and going. When 
> will it end? It's just a cat and mouse game, so both the radio companies and 
> scanner companies can make money, and thats it. There will probably be a 
> scanner out soon the will monitor a Nextel system. Then a new system will 
> come out that can't be monitored. Then a scanner will come out that can 
> monitor it and it will keep going on like that, its big money.
> 
> 
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