Im still somewhat new to the digital programming. On my WV SIRN: West Virginia Statewide Interoperable Radio Network - there are induvial sites for different counties that have 5 or 6 frequencies on them that i can upload to my scanner. Then there are TGIDS that i can add as well. Do i need to have the tower or sites for my county uploaded for the TG's in my county to work?
Trunked Sites and TGIDs
- Thread starter KasePaul
- Start date
Yes
Simple answer was given by @jtwalker and that was YES.
The control channels (CC) are what drives the system, those need to be programmed in, the voice channels are not needed on most scanners, the alt control channels are recommended by not required, after that you need the talkgroups, these are like the code the cc will be looking for to open and let you hear. Additionally, you didn't mention what type of scanner you had, some like the Uniden, then service types need to be turned on.
Welcome to the RR forums. Have a read at the wiki below so you're familiar with how trunked radio systems work. Keep in mind that all sites in your county may or may not carry the same traffic. What make & model scanner(s) are you using? Will you be traveling with said scanner(s)? If you're just monitoring from home or other stationary location, best advised to program the closest geographical site to your operation assuming it carries the traffic you're most interested in hearing. Location specific inquiries would best be answered in your state's discussion forum.
wiki.radioreference.com
Trunking Basics - The RadioReference Wiki
BinaryMode
Blondie Once Said To Call Her But Never Answerd
I'll just add to this to help in a very "non-technical" way so you may understand better.
You have a tower.
The tower transmits and receives on more than one frequency at any given time.
One frequency that's in constant use is called the control channel. Hear what it sounds like here. This frequency (the control channel) is pushing constant data over the air 24/7/365 and all radios listen to this channel.
When someone on the system keys up on the radio the control channel tells the radio what voice channel (frequency) to use. The two-way radio uses the input voice channels (frequencies) to the tower and when you monitor the tower you are hearing the output voice channels (frequencies).
Since this is all digital data being delivered over the frequencies, a talkgroup is just a digital channel being broadcast.
So, you program the tower/s near you. The control channels and the voice channels for those towers. Though, some scanner users use the "control channel only" monitoring mode allowing their scanner to auto tune to the right voice channel. This is fine and works in most cases, but if that control channel frequency ever changes you will miss transmissions. So I personally program the control channels and the voice channels for each tower near me (two towers in total). Now if any voice channel or alternative control channel is used I won't miss anything. I've seen this happen.
Trunking is just a way to utilize more than one frequency more efficiently. All the voice channels (frequencies) are shared by everyone. It's the digital talk groups themselves that offer the differentiation. PD dispatch will be on one talkgroup, fire dispatch will be on another talk group, etc. But all will utilize the same set of voice channels (frequencies) as the control channel dictates.
The average tower will have about 6 voice channels (frequencies). So 6 conversations can take place at once on the tower, but this doesn't happen often, really, but can. Just depends on how busy that tower happens to be in its area. And if it is busy the two-way radio will indicate as such when you key up on the radio.
Another way to look at trunking is like standing in line at a bank waiting for the next available teller. One person goes to this teller ("frequency" if you will), another person to this teller, another to this teller, etc.
Hope that makes sense.
PS.
I personally use the ProScan software to make life easier... Though I can hand edit too.
You have a tower.
The tower transmits and receives on more than one frequency at any given time.
One frequency that's in constant use is called the control channel. Hear what it sounds like here. This frequency (the control channel) is pushing constant data over the air 24/7/365 and all radios listen to this channel.
When someone on the system keys up on the radio the control channel tells the radio what voice channel (frequency) to use. The two-way radio uses the input voice channels (frequencies) to the tower and when you monitor the tower you are hearing the output voice channels (frequencies).
Since this is all digital data being delivered over the frequencies, a talkgroup is just a digital channel being broadcast.
So, you program the tower/s near you. The control channels and the voice channels for those towers. Though, some scanner users use the "control channel only" monitoring mode allowing their scanner to auto tune to the right voice channel. This is fine and works in most cases, but if that control channel frequency ever changes you will miss transmissions. So I personally program the control channels and the voice channels for each tower near me (two towers in total). Now if any voice channel or alternative control channel is used I won't miss anything. I've seen this happen.
Trunking is just a way to utilize more than one frequency more efficiently. All the voice channels (frequencies) are shared by everyone. It's the digital talk groups themselves that offer the differentiation. PD dispatch will be on one talkgroup, fire dispatch will be on another talk group, etc. But all will utilize the same set of voice channels (frequencies) as the control channel dictates.
The average tower will have about 6 voice channels (frequencies). So 6 conversations can take place at once on the tower, but this doesn't happen often, really, but can. Just depends on how busy that tower happens to be in its area. And if it is busy the two-way radio will indicate as such when you key up on the radio.
Another way to look at trunking is like standing in line at a bank waiting for the next available teller. One person goes to this teller ("frequency" if you will), another person to this teller, another to this teller, etc.
Hope that makes sense.
PS.
I personally use the ProScan software to make life easier... Though I can hand edit too.
BinaryMode
Blondie Once Said To Call Her But Never Answerd
Ah, it doesn't look programed right. At least on the surface. Are Parkersburg, Pennsboro, etc all sites or systems? Keep in mind you only need to program the sites (towers) you can hear. Unless you want to travel to those areas or whatever...
I can create a small sample file for you, you upload that and have a look and then you can see how it all comes together. I have ProScan. I have both Uniden P2s, the 396XT and BC296D.
It's:
System (Create any name here)
|
|
|
Site (add the tower frequencies and give the site a name. Typically the name of the tower location is what I use.)
|
|
|
Talkgroups
The system is comprised of the site (or sites) and the talkgroups wanting to be heard.
The site is the P25 tower and its frequencies.
You can have more than one site (tower) per system.
Now add the talkgroups you want to hear in the system by right clicking the system name. System name can be anything you want. Same for Site Name.
Pretty much all right click and select. The copy/paste from clipboard option in ProScan is a life saver inconjunction with the awesome Notepad ++ software...
What scanner are you programming? Because SIRN is Project 25 Phase II and you need a scanner capable of Project 25 Phase II.
I can create a small sample file for you, you upload that and have a look and then you can see how it all comes together. I have ProScan. I have both Uniden P2s, the 396XT and BC296D.
It's:
System (Create any name here)
|
|
|
Site (add the tower frequencies and give the site a name. Typically the name of the tower location is what I use.)
|
|
|
Talkgroups
The system is comprised of the site (or sites) and the talkgroups wanting to be heard.
The site is the P25 tower and its frequencies.
You can have more than one site (tower) per system.
Now add the talkgroups you want to hear in the system by right clicking the system name. System name can be anything you want. Same for Site Name.
Pretty much all right click and select. The copy/paste from clipboard option in ProScan is a life saver inconjunction with the awesome Notepad ++ software...
What scanner are you programming? Because SIRN is Project 25 Phase II and you need a scanner capable of Project 25 Phase II.
OP gave the system in the opening post, WV SIRN. Screenshot shows sites on said system
I did not see any TGIDs programmed in the attached screenshots. I only see sites.
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