Iowa City Hawkeyes DMR

sempai

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Iowa City, IA
It's the IA/ISU game today and Verizon may as well not even exist when you approach Kinnick. Are those frequencies in RRDB or in a format I can pull them into one of my scanners or radios?? In the RRDB all I see is big10 towing ;)
 

sempai

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Iowa City, IA
i plugged these into ezscan for my 1080 with DMR, i set them up as conventional frequencies and you didn't provide the header to that chart and i'm not a DMR user so i don't know what MO means and while 16 could be a talk group it could also not be so i wildcarded them but haven't heard anything on them but i'm not near kinnick, either.

i'm really curious on the source of that chart since it isn't in RRDB, and i worked for the UI for about a decade and the big 10 network people and athletics mostly kept to themselves, i'm surprised they wouldn't be using a trunked system but what they actually want people watching and listening to is on their TV so they might not need more than 300 yards of coverage anyway.
 

timsheff

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"MO" means mobiles "FB" is fixed base, , and it is IG, not 16 which is the type category (General Business I think). I doubt they are conventional, but you would probably hear some digital noise if close enough.

I came across this info using digital freq search web site under Johnson county.
 

sempai

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Iowa City, IA
"MO" means mobiles "FB" is fixed base, , and it is IG, not 16 which is the type category (General Business I think). I doubt they are conventional, but you would probably hear some digital noise if close enough.

I came across this info using digital freq search web site under Johnson county.
thank you - sorry i couldn't be faster on the draw or the uptake. if i can find enough information to get it as correct as i can, i'll leave it active. i don't stream it over ip or anything but i have most things set to record and leave them running often. if i hear anything i'll probably remember this thread.
 

sempai

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Iowa City, IA
That website you referred to has ICCSD on a P25 system and that's not the case. They also have another school district wrong. I think I will stick to what my scanners discover and the RRDB because I don't have confidence I'd be using good data if I set this up for myself.
 

cubn

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Recently the Big Ten licensed DMR frequencies at each school for coach to player headset comes (like the NFL). I'm watching the Illini game now and the quarterback has a Green Dot on his helmet.

I'm assuming this is DMR encrypted.
 

timsheff

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That website you referred to has ICCSD on a P25 system and that's not the case. They also have another school district wrong. I think I will stick to what my scanners discover and the RRDB because I don't have confidence I'd be using good data if I set this up for myself.
Yes, I'm sure some info is not correct, but there is also bad info in RRDB. I've just discovered a DMR system that is on neither RRDB (well it is now) or digitalfreqsearch. And I was confused as hell cause RRDB listed one of the freqs on another DMR system (Which I now believe is no longer).

Thing is, you need to research ALL sources and not put your eggs in one basket.

Search of the FCC database shows that Big10 Conference was issued a license in June of 2024, so in this case, I think the digitasearch results ARE correct.

I'm just getting into the DMR scanning, but I've had some luck at plugging each freq in as a single site DMR and scanned them all till I found something.
 

Guldnerk

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Yes they are encrypted (I think). Being a season ticket holder I got excited, programmed them in and in the stadium was listening to my scanner through my phone and complete silence. That is unless my radio doesn't pick up the broadcast given I am in Benton County but I typically don't have an issue picking up Johnson County.

I have Google FI cell service by the way and don't have an issue with service on game days.
 

sempai

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Iowa City, IA
Yes they are encrypted (I think). Being a season ticket holder I got excited, programmed them in and in the stadium was listening to my scanner through my phone and complete silence. That is unless my radio doesn't pick up the broadcast given I am in Benton County but I typically don't have an issue picking up Johnson County.

I have Google FI cell service by the way and don't have an issue with service on game days.

the UI made a weird (imo) decision to pay AT&T Wireless to manage a guest WiFi network but AT&T benefited the most from that relationship because they had very little spectrum in this market a decade ago. back then most of the cellular data traffic was backhauled over gigabit ethernet which was also terrible.

if your scanner has a discriminator tap feature you can confirm if there is anything over the air, my scanners (1080 and SDS100) can display an icon or play an audible chirp when encrypted data is being received but i have no idea how that is presented on any other equipment.

but i don't think big 10 network would want that radio system to extend much beyond Kinnick so i wouldn't be surprised if my house off Sycamore is too far to pick up 5-8W of DMR nevermind another county; the main county systems are trunked and have infrastructure to cover territory so it's no surprise Linn/Benton can listen to systems here but all that would do for Big 10 is give them problems so it wouldn't surprise me if it was intentionally designed for short distances. they want you watching the game on TV, not listening to or worse capturing and sharing embarrassing traffic. i don't know how robust encryption systems are for DMR but in my line of work we don't assume encryption is even functional and have to design for weak and broken.

edit: i'm not advocating for decrypting encrypted traffic, i'm pointing out that encryption isn't magic and like many things can be as effective as the implementation and planning for forward secrecy, etc. big 10 network takes that sort of thing very seriously and would likely design any solution in relation to the risk and remediation work required for a variety of attacks that are not only possible but are likely to happen. someone eavesdropping on coach comms would be a nightmare, so anything to minimize is likely in place. technology and hygiene/practices.
 
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Guldnerk

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sempai

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Iowa City, IA
> revealed the vendor to the Power Four conferences has been using unencrypted frequencies that could be hacked by anyone knowledgable about the use of scan technology, multiple sources told 247Sports on Wednesday.

"hacked with scan technology" 😆
 

sempai

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Iowa City, IA
The WSDI670 license has 24 repeater output frequencies, 4 frequencies each at 6 different locations. All are licensed for DMR and only 10 watts. Location 5 is Kinnick Stadium. The 4 frequencies of interest are:

451.37505FB2
452.32505FB2
461.40005FB2
461.60005FB2
this is great thank you.
 

Guldnerk

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> revealed the vendor to the Power Four conferences has been using unencrypted frequencies that could be hacked by anyone knowledgable about the use of scan technology, multiple sources told 247Sports on Wednesday.

"hacked with scan technology" 😆
I commented on that about how it is not hacking, all you needed was a scanner that had the ability to receive DMR and if that makes me a hacker you better put me on a watch list.
 
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