Identifying Talk Group ID's
- Thread starter n2mdk
- Start date
- Status
I'm glad someone is going to try and find the active ones. Most of the ones listed are from when I first identified the system back around 1997. I'm sure that many things have changed in the 10 years since then. Make sure you post your findings here or submit them to the database and I will get them updated in the database.
Eric
Eric
mikeydcg2003
Member
I noticed that Ames and ISU run on the same freqs. Does ISU just run off of the ames trunk or is there another control channel that runs the ISU TGID's. When i did a channel listen, i heard 2 control channels last weekend at the isu game.
The control channels are different on both systems. Ames uses 860.0125 and 859.0125 and ISU uses 860.5625 and 859.5625. The two 860 frequencies seem to be primary. I tried looking up the locations of each system and it looks like they are at the same site. The funny thing is the ISU system comes in better than the Ames does. It's weird, also one of the Ames PD TGs is on the ISU trunk it's Ops 2/57488.
I'm trying to make heads or tails of the non public safety TGs but it's not easy they aren't all that active, when they are it's generally brief. I'm going to keep at it though.
I'm trying to make heads or tails of the non public safety TGs but it's not easy they aren't all that active, when they are it's generally brief. I'm going to keep at it though.
Last edited:
mikeydcg2003
Member
good work.. i am trying to pinpoint all the stuff i can hear on the DSM Racom network. I have found the 2 control channels that it switches between and found i can hear things as far away as eastern ia
what are the ones you have found so far
mikeydcg2003
Member
I am in the process of making a list for the DSM racom tower. I should have it up in a few days!
w0fg
Member
"Towers" (more properly, EDACS systems) have no direct relationship with talk groups. If an authorized user of any talk group affiliates with any given RACOM system ("tower"), then traffic for that talk group will be routed to that system, and any other systems that are hosting other affiliated users. That is why you will sometimes hear "foreign" talk groups appearing on your local system. Certain talk groups also may, under normal circumstances, have their traffic forced to multiple systems.
The biggest problem with Ames is that there are so many different things on the system. It's not just City/Public Works there are users going throughout Story Co. and what appears to be some commercial users as well.
mikeydcg2003
Member
I did a search today and found that the dsm tower picks up at least 30 different talk groups. The one i know that is on every tower is tgid #1. This is the racom company network. They do a roll call @ 11:45 daily. Interesting to hear where people are calling from. I know i heard a few from Souix City, a few from davenport, a few from waterloo and heard one as far as moline,ill. The cool thing is, they came in clear as a bell. Now that's a powerfull network to be repeating as it does
w0fg
Member
mikeydcg2003 said:
They're not "repeating" in the sense that you mean. The links between systems are all hard wired fiber optic or equivalent. The switching center in Marshalltown has much more in common with a telco CO than it does with a radio dispatch center.
mikeydcg2003
Member
w0fg said:
That would make a lot more sense. Didn't think wireless could repeat as far as that in that clarity.
- Status
