[Scan-DC] Rebanding Montgomery County

[Jeff Krauss]

Sorry, I don't get it.
What's the relationship between the Motorola channel plan assumptions 
and a channel that has a 0 in the 4th place after the decimal point 
and the way my scanner operates?



At 04:40 PM 1/25/2012, Eric C. Carlson wrote:
>It may seem silly on the surface but you have to understand how the
>Motorola trunked system protocol communicates to radios to tell them
>what frequency to use for a given conversation.  It is LCN based under
>the covers (like an EDACS or LTR system) but it uses a fixed channel
>plan for an entire band (versus ad hoc for EDACS or LTR).  Motorola
>made an assumption about how channels are laid out in the 800 MHz
>band.  Rebanding changes that layout.
>
>-Eric
>
>On Wed, Jan 25, 2012 at 3:34 PM, Jeff Krauss <jeff at krauss.ws> wrote:
> > Why does a scanner have a problem finding a frequency with a 0 in the
> > 4th place after the decimal point?
> >
> >>------------------------------
> >>
> >>Message: 4
> >>Date: Wed, 25 Jan 2012 12:48:43 -0500
> >>From: Dave <afdltret at comcast.net>
> >>Subject: Re: [Scan-DC] Rebanding Montgomery County
> >>To: scan-dc at mailman.qth.net
> >>Message-ID: <4F20407B.9080701 at comcast.net>
> >>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >>
> >>   Well it is true that all frequencies will come down 15Mhz, as an
> >>earlier poster explained even if they don't change the present control
> >>channels, the other frequencies that have an 0 in the 4th place after
> >>the decimal point will require you to use the rebanding tables to hear
> >>all transmissions. Without the tables the Control Channel might look for
> >>one of those frequencies but the scanner itself will not be able to find
> >>them.
> >>
> >>Dave M.
> >>
> >>
> >
> > ______________________________________________________________
> > Scan-DC mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/scan-dc
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Scan-DC at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html