Programing a GRE 500 with a P25 system

Status
Not open for further replies.

KC9DGX

Member
Premium Subscriber
Joined
Nov 30, 2012
Messages
23
I asked this question deep in another thread of mine, and I think it got overlooked, so I will start a new thread. I can understand the manual for the most part of how to enter a talk group, I just do not know what numbers to put where...

Per the manual, I hit PGM, NEW, and TGRP. The cursor is on the TSYS line. I have a few options to change it... from what I know, the system I am trying to monitor is a P25 system. I have the options P25 auto, or P25 Manual. Which one should I use? Here is what RR has listed... go down to Fond du Lac county...

Wisconsin Interoperable System for Communications (WISCOM) Trunking System, Statewide, Wisconsin - Scanner Frequencies



Next I will highlight the manual, and ask a question after...

"Next, scroll to the Frequencies: field to
begin entering the control channel frequencies for the My
System trunked radio system. Press the SEL key, and at the
Ch01: field you should enter the first control channel frequency
for your radio system. Simply key in the
frequency including the decimal point, and press the ENT key or
the DONE softkey to store the control channel frequency. Press
the arrow down key and repeat this step to add any other control channels
used by the system."

So what are the control channel freqs? here are some frequencies that are being used on this system per RR.


Go down to Fond du Lac, city of
Fond Du Lac County, Wisconsin (WI) Scanner Frequencies and Radio Frequency Reference


After this I will just copy what the manual says as it is all Greek to me. (No offense to any Greek members here. )

"Once you have finished entering the control channels, press the
SAVE softkey, then press the SAVE softkey again. This will store
the new TSYS into memory and return you to the TGRP
parameter entry. Your display will now appear as follows:

Notice that the system name has changed to reflect the name
you chose when you were entering the parameters for the
trunking system. As you enter this TGRP and other TGRP
objects for this system, you will just specify the system name
here. So, the TSYS parameters for a system need only be
entered once. You simply specify the already-entered TSYS as
needed when building more TGRP objects for the same system.
Scroll down one click to the ID: field. Note that by default, the
trunking talkgroup ID is set to Wildcard. Wildcard is a special
type of TGRP object that allows you to monitor all talkgroup call
traffic on the associated trunked radio system. Wildcard TGRP
objects allow you to quickly find and store new or unknown
talkgroups on a trunked radio system. When a Wildcard TGRP
object is mapped to an active Scan List and scanned, all
talkgroup traffic on the system is monitored, and you have the
option to save or lock out new talkgroups as they appear. You
may wish to save your TGRP object as a Wildcard with no further
changes. If so, just press the SAVE softkey to store your new
TGRP as a wildcard. By default it will take the tag name of
ID: Wildcard.
HINT:
Wildcard objects are easier to find and change later if you include an
abbreviated name for the system in the tag field.
If you would rather store a TGRP object for a specific talkgroup
ID on MySystem, just press the number keys to enter the
talkgroup ID of the desired talkgroup, then press the ENT key or
the DONE softkey to store the ID.
HINT:
TGRP objects are also used to receive Private/Individual Calls on
trunking systems that support these call types. Simply change the
Type: field from Group to Private. A Wildcard TGRP object with the
Type: field set to Private will monitor all Private/Individual Calls
seen on the system, or you can specify a radio ID to watch for in the
ID: field.
Youʼll want to scroll down two more clicks to the Tag: field and
enter an easy to remember name for your talkgroup that
corresponds with its purpose on the trunked radio system. For
this example, letʼs assume that this is a police dispatch
talkgroup, and we would like to use the name “POLICE
DISPATCH” for the tag. Scroll to the Tag: field and press the
SEL key on the 5-way pushbutton pad. Using the text entry
methods that you have previously employed for naming your
PSR-500 User Manual
Page 41
CONV and TSYS objects, name your new talkgroup “POLICE
DISPATCH”:
7 1 P
6 3 O
5 3 L
4 3 I
2 3 C
3 2 E
. <space>
3 1 D
4 3 I
7 4 S
7 1 P
2 1 A
8 1 T
2 3 C
4 2 H
Press ENT or DONE to store the name, then press SAVE to store
the TGRP as a new object. As with the other object types, there
are many other parameters you can edit for the TGRP, but for
now, thatʼs all you have to do to start monitoring traffic on that
TGRP!"
 

W8RMH

Feed Provider Since 2012
Joined
Jan 4, 2009
Messages
8,109
Location
Grove City, OH (A Bearcat not a Buckeye)
So what are the control channel freqs? here are some frequencies that are being used on this system per RR.

Control Channel Frequencies are the ones in Red and Blue.

On the Fond Du Lac County page I don't see any other system besides WISCOM. If you are referring to the "conventional" frequencies they do not use control channels or talk groups. Those would be entered as conventional frequencies.
 
Last edited:

KC9DGX

Member
Premium Subscriber
Joined
Nov 30, 2012
Messages
23
Yes county is still doing it the conventional way. City has gone to WISCOM. Thanks. I know see the red control chans.
 

KC9DGX

Member
Premium Subscriber
Joined
Nov 30, 2012
Messages
23
To get started though I still need to know what to select in the TSYS line. This is listed under WISCOM... P25 auto and P25 manual are my options in the TSYS line on my scanner.

System Type:

Project 25 Phase I
 

KB7MIB

Member
Joined
Aug 17, 2003
Messages
4,259
Location
Peoria, AZ.
Wirelessly posted (Mozilla/5.0 (X11; Linux i686; U; en-US) Gecko/20081217 Vision-Browser/8.1 301x200 LG VN530)

Use Auto. Manual is for more advanced users.
And make sure you're entering both the Red Primary and Blue Alternate control channels. There may be 1 or 2 of both. Enter all of them.
 

KC9DGX

Member
Premium Subscriber
Joined
Nov 30, 2012
Messages
23
Wirelessly posted (Mozilla/5.0 (X11; Linux i686; U; en-US) Gecko/20081217 Vision-Browser/8.1 301x200 LG VN530)

Use Auto. Manual is for more advanced users.
And make sure you're entering both the Red Primary and Blue Alternate control channels. There may be 1 or 2 of both. Enter all of them.

Thanks so much. I can finally get started at this. :)
 
Status
Not open for further replies.
Top