[Scan-DC] ASTRO vs. APCO-25

Mon, 27 May 2002 15:09:06 -0400

First generation ASTRO systems used the VSELP vocoder. Current versions use
IMBE, which is compatible with P25. There are no VSELP systems in the
Scan-DC area.

Jack

----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Cc: <[email protected]>
Sent: Monday, May 27, 2002 12:06 PM
Subject: Re: [Scan-DC] ASTRO vs. APCO-25

> Thank you for the info. So, I guess that means older digital systems will
> still not be able to be monitored.
> ----- Original Message -----
> From: <[email protected]>
> To: <[email protected]>
> Cc: <[email protected]>
> Sent: Monday, May 27, 2002 10:14 AM
> Subject: Re: [Scan-DC] ASTRO vs. APCO-25
>
>
> Motorola's original Astro and APCO-25 ARE different; fortunately, most new
> Motorola digital systems are APCO-25 compliant.  Check  <A
> HREF="http://www.trunkedradio.net/trunked/apco25.htm">
> http://www.trunkedradio.net/trunked/apco25.htm</A>
> for a good summary.
>
> Jim
>
> In a message dated 5/26/2002 6:50:51 PM Eastern Daylight Time,
> [email protected] writes:
>
>
> >
> > Forgive me if I am wrong, but the spec sheet for the new scanner claims
it
> > to be APCO 25 digital compatible. I don't believe APCO 25 is the same
> > digital protocol as the Motorola Astro digital which many states and
> > counties are migrating to. As far as I know, the only agencies intending
> to
> > use APCO 25 are the Feds. Can someone clear this up for me?
>
>
>
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