Re: SDS100 Upgrades?

don robinson

True: P25 was pushed into the US for interoperability, but also because the phone company took away some radio spectrum many radio agencies had been using, including TV. The government grant to get cities into P25 was not enough to really make it work though at first. P25  began as barely operable, but for 10's of millions of dollars more it could be made to work. There also is annual maintenance, costing cities millions per year as well. That is very lucrative for the providers of P25 systems, but some cities choose not to be on the hook for millions more dollars in annual cost to replace something they have that still works well for them. But, for us little guys, it meant replacing our analog trunking scanners with digital trunking scanners- not cheap either. Phase II ruined  it for some of us. Encryption will ruin it for all of us.

Stay well, friends.

It's not just Motorola.  Public safety agencies that are buying digital
radios are STRONGLY encouraged to use the P-25 standard in order to
maintain inter-operability with their neighbors.  To help push that, the
federal government has deemed that if you are going to get federal grant
money to buy radios, it MUST be P-25 capable.
Going into the Way Back machine, when trunking first got started,
largely every manufacturer built their own system.  None were compatible
with each other.  Many years ago, it was realized that this was a
problem.  APCO came together and created the P-25 standard to avoid that
problem in the future.  Granted that radio systems do not get major
updates or replacements on a fast schedule, so it has taken YEARS, but
the vast majority of digital radio systems in use in the USA by public
safety agencies today are P-25. Of course there are lots of agencies
(especially in more rural areas) that are still analog conventional, and
likely will be for a long time.

Jim Walls - K6CCC


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