ngel
Member
I used hear CIS Tampa on 462.3000 MHz on this system https://www.radioreference.com/apps/db/?sid=8606. I am not hearing anything at all now. Anyone know if they moved to a different system ?
CIS Tampa
- Thread starter ngel
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crash1
Member
Yes they moved all operations to 452.3375
TampaTyron
Beep Boop, Beep Boop
They used to be on Telecom Network's LTR system and are now on Telecom Network's Linked Capacity Plus system across the I-4 corridor.
crash1
Member
Yeah that was a long time ago they're on that frequency I'm monitoring them right now
TampaTyron
Beep Boop, Beep Boop
The LC0 system has been undergoing changes/maintenance over the last little bit. TT
tpredmore
Member
All comms are on this one frequency or just one county's comms?
When CIS used to be on 462.3000, they stayed put on that 1 frequency but trunked around both slots. Now I've been noticing there's 2 Capacity Plus frequencies, but I can't find the other one for the life of me.
Is this system in the RR database?
TampaTyron
Beep Boop, Beep Boop
Some of it is, yes. May not be accurate though.
I don't see anything for Hillsborough called Telecom. But there is something called Allcom: https://www.radioreference.com/apps/db/?sid=8588 .
TampaTyron
Beep Boop, Beep Boop
Telecom Network is owned by Allcomm Wireless out of Birmingham. TT
TampaTyron
Beep Boop, Beep Boop
452.100 is what I have in my notes from a few months ago. Unsure if it changed since then. TT
And actually, there's a 3rd license for MOBILE-ONE Communications and Electronics, Inc. So they would triple-up and interfere with each other. Never understood why the FCC allows licenses for the same frequency in the same area like that. They're only gonna interfere. And why do radio companies do that in the first place? That seems completely dumb. It is always a mystery trying to understand how/why these radio companies get all their frequency licenses.
I never understood that either. In my area the school district has 2 same freqs 1 can be for a high school the other for middle. It's all DMR.
So I did some monitoring with DSD+ tonight and think I mighta figured this out. Critical Intervention Services (CIS) used to have several Capacity Plus sites that were only 1 RF frequency per site. Still trunking, but they would just trunk between slots 1 & 2. Now it appears each site is using 2 RF frequencies with 4 slots total for greater capacity. 452.1000 is dead, not a peep. 462.3000 *is* still active, but it's only 1 of 2 frequencies on its site. So a lot of the time, it'll seem like 462.3000 is inactive. You used to be able to listen to just 462.3000 and hear everything because this whole system used to only use 1 RF frequency per site. But now it's 2, so you gotta program in both frequencies like a Capacity Plus trunking system to make sure you hear everything.
Here's the LSNs that I've figured out with DSD+. I'll submit an update to the RR database shortly. There could be other sites, but these are the 3 that I can hear. All of these use Restricted Access to System (RAS), but fortunately no encryption. I haven't been able to find any site 1 frequencies.
SITE 2:
1/2 461.9250 CC1 Neighboring sites 1 5 6
3/4 453.0125 CC1 Neighboring sites 1 5 6
SITE 5:
1/2 462.3000 CC1 Neighboring sites 2 6
3/4 452.3375 CC1 Neighboring sites 2 6
SITE 6:
1/2 452.6125 CC1 Neighboring sites 2 5
3/4 464.4625 CC1 Neighboring sites 2 5
There used to be a frequency of 463.3125 which I can no longer hear anything on. The rest channel on site 5 doesn't seem to change much, so 452.3375 seems to have most of the activity.
SITE 2:
1/2 461.9250 CC1 Neighboring sites 1 5 6
3/4 453.0125 CC1 Neighboring sites 1 5 6
SITE 5:
1/2 462.3000 CC1 Neighboring sites 2 6
3/4 452.3375 CC1 Neighboring sites 2 6
SITE 6:
1/2 452.6125 CC1 Neighboring sites 2 5
3/4 464.4625 CC1 Neighboring sites 2 5
There used to be a frequency of 463.3125 which I can no longer hear anything on. The rest channel on site 5 doesn't seem to change much, so 452.3375 seems to have most of the activity.
TampaTyron
Beep Boop, Beep Boop
Good job! TT
For updating the database, it's gonna be confusing, cos right now there's 2 different systems. One in Pinellas County, which is just site 5: https://www.radioreference.com/apps/db/?sid=8606 and the other in Hillsborough which has the wrong frequency info that needs updating: https://www.radioreference.com/apps/db/?sid=8588 . And the FCC licensing is all screwy, so there's no way to nail down which repeater is where. Some frequencies are licensed multiple times in different locations. What a mess. Why are these radio companies always so confusing with how they do their FCC licenses? I can't seem to wrap my head around who "STULL, CHARLES C" is and why he has frequencies licensed on the same frequencies that Allcom, BCI, & BRODIE COMMUNICATIONS have licenses on.
TampaTyron
Beep Boop, Beep Boop
The below is my perspective from when I worked in local radio shops around Tampa.......
Frequencies are a finite resource. There are only so many. In commercial radio systems, there are very few exclusive use frequencies (FB8 vs. FB2). Since there is a high likely hood that there will be other users on the frequency for my radio system, I license MANY frequencies in the hope that there will be enough clean channels at any one time to serve my customers. I often have to make "deals" with other shops for me to stay off one frequency if they stay off another (since we are often licensed on the same sets of frequencies). The frequency coordinators do not seem to care about minimizing interference. Often, there are many unlicensed users (Baofang/Wouxoun/etc), expired licenses, and people operating outside of their licenses on the same frequencies that my system is on. It is a constant battle to keep a system running for declining dollar revenue year-to-year. Now, with digital, it is much easier to design and deploy a multisite system that will automatically heal around interference, bad repeaters, network loss, etc.
I hope this helps, TT.
Frequencies are a finite resource. There are only so many. In commercial radio systems, there are very few exclusive use frequencies (FB8 vs. FB2). Since there is a high likely hood that there will be other users on the frequency for my radio system, I license MANY frequencies in the hope that there will be enough clean channels at any one time to serve my customers. I often have to make "deals" with other shops for me to stay off one frequency if they stay off another (since we are often licensed on the same sets of frequencies). The frequency coordinators do not seem to care about minimizing interference. Often, there are many unlicensed users (Baofang/Wouxoun/etc), expired licenses, and people operating outside of their licenses on the same frequencies that my system is on. It is a constant battle to keep a system running for declining dollar revenue year-to-year. Now, with digital, it is much easier to design and deploy a multisite system that will automatically heal around interference, bad repeaters, network loss, etc.
I hope this helps, TT.
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