heh...
5-City Radio System Lorain County
- Thread starter tonya
- Start date
heh...
And there it is...
From the wrong FCC location thats about 3.6 miles line of site to the corrected location...
Anyone having issue with 5-City today? Using sdrtrunk I have to keep the tuners set to automatic. If I use HDSDR to check the signal it seems to pulsating. I'll be back at it again in the morning.
Thanks!
John
Thanks!
John
No problems monitoring it with my SDS100 or SDS200...
I'm down by Litchfield. It show a site in LaGrange. No matter which site I point my antenna is seems to be pulsating.
Thanks!
Yeah, I know were the site is on 303 west of the square...
I'm showing a solid full bars signal from the control channel on my scanners in my location...
Just heard LifeCare Amb and Elyria Fire just fine...
And LPD Patch...
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Are you sure you have SDRTRunk set up as LSM? You want to make sure you do. C4FM is for non-simulcast, LSM for simulcast.
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I don't think that site's online yet, but I don't get down that way at all. I should probably go out of my way to find out...
Went down that way sunday night-it's not online yet.
Yes. Set to LSM. This morning this was my screen. 10 minutes later is the second picture. I made no changes. System just came back.
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Clearly interference / dongle overload / dongle malfunction. One of those. In the screenshot with no signal, the noise floor is much LOWER. In the screenshot with signals, the noise floor is much LOWER. That change in the noise floor should not be occurring. Something is probably be turned on at specific times (in your house or a neighbors house) at particular times, causing that to occur.
Doggonit. I meant to say in the screenshot with no signal, the noise floor is very high. In the screenshot with all sorts of signals, the noise floor is much lower. I'd bet its an interference issue of some sort (something turning on at certain times and generating a lot of noise).
Here's another weird thing. I was using Unitrunker to gather some data and I noticed it shows 10 channels. Take a look at the frequencies. 3 of the frequencies are repeated 3 times each having different LCN's. I've never seen this on any other the systems around me.
When I run SDRTrunk I also get an error message - i. g. d. v. VectorUtilities - CPU supports maximum SIMD instructions of Species[float, 4, S_128_BIT] [10MB/28MB 38%]
I'm no programmer and don't have a clue.
Thanks all for the feedback.
John
Phase II P25 has two timeslots per freq. A P25 Phase II system may have all talkgroups TDMA (using both timeslots) or may have all talkgroups using FDMA (one timeslot) or a combination.
What you are seeing is the frequencies being broken into TDMA pairs as those frequencies are used for TDMA traffic. If you fired up UT and there was no TDMA traffic, you'd see just the normal frequency lineup -- until some TDMA talkgroup became active.
In the case of 5-cities, all traffic is Phase II TDMA voice
I see the slot column with the 1 & 0, but what about the ones with the slot showing nothing? Is that like the master and then the number ones are like slaves? If you have a link for people like me to help explain it - Time Slots for Dummies.
Thanks!
I don't have a link to explain it.
123.45678 (FDMA)
- 123.45678 TS1 (TDMA)
- 123.45678 TS2 (TDMA)
I'd post an actual frequency but I can't read the screenshots. Too small for my eyes. But I can't fathom a reason why you need even more of an explanation than what was already given.
Phase II systems allow for two simultaneous conversations on one frequency, because there are two timeslots instead of one.
DMR is also TDMA. (DMR / CAP+ / CON+ / TIII) all are TDMA and thus have two timeslots available per frequency.
Avon police is on Marcs... Avon Fire is on the 5 City...
N Ridgeville police is not on the 5 City but Fire is...
NR police is on Marcs, I don't monitor them so don't know if active or not...
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