Site 0

[CrewRest]

What does a listing for "Site 0" mean in a Motorola TRS? UniTrunker shows a Site 0 for my local TRS. Site 0 Freq's are comprised of a few of the Site 1 Freq's but not all and not any of the control channels or alt control channels. In our local TRS there are 6 sites (1-6) with control channels but a total of 7 towers.

Doug Anderson
KG4QCR

 

[SCPD]

Hi Doug;

Zero is the site number used by the program (a) for single-site / island systems or (b) when the actual site number is unknown. The RR DB uses "1" as the default site number - which is fine for the DB but not such a good thing for live decoding.

Suppose the program defaulted to using site 1. At start-up would accumulate channels under that site - then discover the monitored signal was Site 03 on a SmartZone system (that also has a site 01 with different channels). To avoid adding junk like this, the program assumes site zero - until it sees evidence otherwise.

A consequence of this is you'll end up with a bogus site zero for a SmartZone system. You can safely delete the site (which removes all the associated channels) like so ...

[F]ind -> Ste -> type in site number to remove -> press [Enter]. Select [Del]ete from the menu.

-rick

 

[CrewRest]

Thanks Rick,

I knew I could delete the information but I didn't understand why it was there. Makes sense!

Thanks.

Doug

 

[unitcharlie]

OK.... now I am stumped.... Site Zero in the system info posted here is a real site:
System Site Control Channels
4 0 5 6
4 3 0 1
That matches what I have monitored.... the site with six channels and #5 as control is site 4 per the Uniden...it is also on the same tower as the one channel no control that has me stumped.... (This is the New Lexington, KY TRS discussed in another thread... but the Site 0 caught my eye.)

In Props it tells me:
EDACS 96 for type /no Failsoft/ NO SCAT (darn it, back to square 1)/ Delay 2/ Priority 0 / Normal Signal/ 7 Peers AND Island/ 0.77 Profile

The info listed as Site 0 is a working site in a three tower EDACS... the info listed as Site 3 is the freq I thought was a SCAT system but the UniTrunbker read out tells me otherwise....

So can this site be Site 0.... and what is the difference between the 7 peers and Island listed in the Properties output?

 

[SCPD]

Steve;

Apologies in advance. I'm about to confuse the matter even more. EDACS is treated differently than Motorola. Here's a quick synopsis of why ...

1. P25 always has a site number and system id.
2. Motorola always has a system id and may (or not) have a site number.
3. EDACS always has a site number and never a system id.
4. MPT1327 has a (weak) system id and may have a weak site number.
5. LTR has not a system or site number.

By "weak", I mean the number may not be unique which means you can't assume that system "X" decoded today is the same as system "X" decoded yesterday.

Notice that EDACS does not have a system ID. We can't tell if site 1 and site 2 are part of the same network or completely different systems. To cope with handling two EDACS sites in the same area - the program treats the site number as a system id. That way - EDACS sites 1, 2, 3, etc. all get their own data files. To allow sharing EDACS data across sites - you can use the delegate feature to pull talkgroup and radio id data from another EDACS site.

For a given EDACS site that announces neighbors - you can see the list of neighboring sites in the [V]iew -> Stes list. The [V]iew -> Pr[o]ps display will tell you the number of neighbors (among other things).

So ... in the context of EDACS ... site 0 means "this" site. The displayed system number is the real site number.

-rick

 

[unitcharlie]

Thanx Rick.... that actually clears a lot of stuff. The site in question, Site 4 jas two systems. One of these is Virtual Site 4 on the New Lexington TRS with LCN #5 as the CC, 6 freqs total; the other is also site 4 but has no control and only one freq. It isn't a SCAT per UniTrunker so I'll have to wait until a call is dispatched down that way to see what happens. Someday I will learn all the functions available!
Thanx again

 

[SCPD]

Hi Steve;
If you're up to it - I'd like to see some logs from this system. I'm not sure what "virtual site" is in the context.
-rick

 

[unitcharlie]

I'll see if I can figure out how to make the logs.... This system has four sites split between two licenses.... those four sites are then configured into "Virtual" Sites 1,3 &4 using freqs from the four different FCC sites. for example, Virtual Site #1 uses freqs from the second license and from FCC Site #2 but is identified by the Uniden as Site #1 with the approp[riate freqs in use per UniTracker.... the same holds for Virtual Sites #3 and #4. There is one non-Nextel freq between the two licesnes that isn't used in any of the "Virtual" sites which is what led to the SCAT theory.... Here is the link to the latest discussions on the New Lexington (KY) Public Safety TRS

This thing is really an ingenious TRS with improved coverage, at least from a scanning perspective....

 

[SCPD]

I'll see if I can figure out how to make the logs....

From the main menu, select [O]ptions ... tab over the where it says "Loggin is [Off]" and change it to "On". Watch your disk space.
-rick

 

[unitcharlie]

I'll give it a try....