[TrunkCom] Ohio M.A.R.C.S. Neighbor Sites/Affiliations

[Tom Swisher]

JERRY NONE wrote:

> Could somebody please explain to me the purpose of
> each of the following:  Ohio M.A.R.C.S. Neighbor
> Sites/Affiliations.  I am NOT well versed in the
> aspect of trunking.  Motorola, EDACS, LTR, yes I
> understand this now but the whole concept of Ohio
> M.A.R.C.S. Neighbor Sites/Affiliations is confusing 
> to me.

Basically and without getting too technical:

Neighbor sites are those adjacent to a specific site in the system. For 
example, the neighbor sites for Beachwood would be Cleveland, Hopkins 
Airport, Strongsville, Wickliffe, and so on. The control channel sends 
out information on neighbor sites and the control channels in use at 
those sites so radios know where to start looking if the site they're 
currently on gets too noisy.

Affiliation is when a radio tells a site "here I am, and here's the 
talkgroup I'm on," usually when the radio is first turned on, or changes 
talkgroups. Transmissions to that talkgroup are thus routed to that site 
as well as other sites that talkgroup may be affiliated with. When a 
radio switches to another site it deafiiliates with the old site and 
affiliates with the new site. That way transmissions follow the radio.

Tom WA8PYR
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Tom Swisher, WA8PYR         wa8pyr-scan@sbcglobal.net
          "They're not going to catch us...
   we're on a mission from God" - Elwood Blues, 1979
     WA8PYR Radio - http://www.qsl.net/wa8pyr