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W2LIE.net | Monitor Long Island, Inc. :: Forums :: Scanner Radio :: Long Island - Suffolk
Moderators: w2lie, Chieftaz, BobLandau, quint14, LI_Scan_Guy, cwerner
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New Suffolk County Trunk System OBSERVATIONS

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Posted: Fri Sep 06 2019, 08:38pm
Posted by: LIScanner101Posts: 381
Location: Hicksville, NY
Joined: Sun Jun 16 2013, 09:29pm

I've been mostly successful monitoring this P25 system from my home office in Hicksville with a PRO-668 and a Shure UA820 elevated feed antenna (774MHz - 865MHz). This antenna really pulls in trunked systems. However, today I'm having a really tough time keeping the "T" on, it keeps going to "S" and when it does that it just doesn't pick up. I checked to see if there were any changes to the system on RR and don't see anything. My programming seems spot on. Dumb question but could it be the weather???
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Posted: Mon Sep 09 2019, 02:37pm
Posted by: Dave3825usPosts: 957
Old Display Name: Dave
Premium Member Premium MemberJoined: Fri Mar 24 2006, 10:47pm

Saw there was some activity on site 3 on tg 6301. The rid's with hits had conversations and the ones without hit only registered with the tg and did not talk yet. I do not have any info logged on any of these rid's. Does anyone have any of these rid's logged and identified?

Thanks


P25, BEE00.3CE, 6301, 55127, 50, Normal, 0, 0000/00/00 0:00, ""
P25, BEE00.3CE, 6301, 55132, 50, Normal, 0, 0000/00/00 0:00, ""
P25, BEE00.3CE, 6301, 55135, 50, Normal, 0, 0000/00/00 0:00, ""
P25, BEE00.3CE, 6301, 55137, 50, Normal, 3, 2019/09/07 19:48, ""
P25, BEE00.3CE, 6301, 64132, 50, Normal, 9, 2019/09/06 10:43, ""
P25, BEE00.3CE, 6301, 64135, 50, Normal, 7, 2019/09/06 10:44, ""
P25, BEE00.3CE, 6301, 5141001, 50, Normal, 2, 2019/08/22 15:36, ""
P25, BEE00.3CE, 6301, 5141004, 50, Normal, 0, 0000/00/00 0:00, ""
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Posted: Mon Sep 09 2019, 09:57pm

Posted by: w2liePosts: 2798

User Buff Group ID
Old Display Name: w2lie
Location: Long Island, NY
Your Admin
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Joined: Fri Nov 04 2005, 03:28am


LIScanner101 wrote ...
I've been mostly successful monitoring this P25 system from my home office in Hicksville with a PRO-668 and a Shure UA820 elevated feed antenna (774MHz - 865MHz). This antenna really pulls in trunked systems. However, today I'm having a really tough time keeping the "T" on, it keeps going to "S" and when it does that it just doesn't pick up. I checked to see if there were any changes to the system on RR and don't see anything. My programming seems spot on. Dumb question but could it be the weather???
 
It could be the simulcast.
What happens if you don't use the external antenna?
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Posted: Fri Sep 20 2019, 07:42am
Posted by: Dave3825usPosts: 957
Old Display Name: Dave
Premium Member Premium MemberJoined: Fri Mar 24 2006, 10:47pm

GTR8000 wrote ...


The P25 system is TDMA capable, which means those 8 frequencies become 1 control + 14 traffic channels. That is actually more capacity than the current analog SmartZone primary simulcast cell (1 control + 13 traffic channels), and of course doesn't take into account the other sites/simulcast cells in the P25 system, which increases the capacity even more. 700 and 800 MHz are considered a single band on these systems and the subscriber radios, which means they will have no trouble at all roaming between any of the P25 sites when permitted to do so.


So its 330 am and my kid is sick. But I noticed more freqs on site 4. I do not see a license yet for 853.9. But I am half asleep..



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Posted: Fri Sep 20 2019, 01:12pm
Posted by: Dave3825usPosts: 957
Old Display Name: Dave
Premium Member Premium MemberJoined: Fri Mar 24 2006, 10:47pm

Once I actually see a call on 853.9, I will submit the info.
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Posted: Fri Sep 20 2019, 01:16pm

Posted by: w2liePosts: 2798

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Old Display Name: w2lie
Location: Long Island, NY
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Thanks Dave. Nice job catching the additional channels.
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Posted: Fri Sep 20 2019, 01:19pm
Posted by: LIScanner101Posts: 381
Location: Hicksville, NY
Joined: Sun Jun 16 2013, 09:29pm

w2lie wrote ...


<div>
LIScanner101 wrote ...
I've been mostly successful monitoring this P25 system from my home office in Hicksville with a PRO-668 and a Shure UA820 elevated feed antenna (774MHz - 865MHz). This antenna really pulls in trunked systems. However, today I'm having a really tough time keeping the "T" on, it keeps going to "S" and when it does that it just doesn't pick up. I checked to see if there were any changes to the system on RR and don't see anything. My programming seems spot on. Dumb question but could it be the weather???
</div>
<div> </div>
<div>It could be the simulcast.</div>
<div>What happens if you don't use the external antenna?</div>



Sorry for the late response. The Shure antenna I have is actually a duck antenna. I’ve been told it’s an elevated feed.

I’ve tried my RS 800MHz duck and it didn’t help.

Today, it’s much better for some reason.
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Posted: Fri Sep 20 2019, 09:52pm

Posted by: GTR8000Posts: 138
Joined: Fri Nov 25 2016, 07:07am

853.900 is not licensed, not pending, and there's nothing in CAPRAD for it either. Possibly just a bad decode since it looks like it never popped up in the Channel Activity window, even though it was written to the DSDPlus.P25data file. I've learned to take stuff like that with a grain of salt, as I've seen DSD+ and Unitrunker both do some strange stuff from time to time.
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Posted: Sat Sep 21 2019, 01:41pm
Posted by: Dave3825usPosts: 957
Old Display Name: Dave
Premium Member Premium MemberJoined: Fri Mar 24 2006, 10:47pm

Bad decode?

Nah, Not here, lol.


For kicks, I set up an instance of dsdplus on 853.9 to see if anything comes up. There is a very weak signal coming from somewhere. Most likely CT or NJ.
For whatever reason, dsdplus thinks its seeing NAC:3C4. I will delete it from p25data file but have a feeling it will come back.

2019.09.21 8:21:29 Initiating TCP connection to 127.0.0.1:20002...
2019.09.21 8:21:29 Connected to 127.0.0.1:20002
2019.09.21 8:21:29 TCP link established
2019.09.21 8:41:10 Sync:+P25p1 TDULC ERR12 UNHANDLED EXPLICIT OPCODE: #15 90100000B16CBD99
2019.09.21 8:41:10 Sync:+P25p1 TDULC ERR30
2019.09.21 8:41:10 Sync: no sync
2019.09.21 8:41:12 Sync:+P25p2 Sync: no sync
2019.09.21 8:41:25 Sync:+P25p1 NAC:3C4 LDU2 e:DrErBrErFrErErCrEr
2019.09.21 8:41:26 Sync: no sync
2019.09.21 8:43:24 Sync:+P25p2
2019.09.21 8:43:25 Sync: no sync
2019.09.21 8:44:14 Sync:+P25p2 Sync: no sync
2019.09.21 8:45:33 Sync:+P25p1 LDU1 e:BrErCrErErErDrErEr
2019.09.21 8:45:33 Sync: no sync
2019.09.21 8:47:26 Sync:+P25p1 LDU1 e:ErFrFrFrFrFrDrErFr
2019.09.21 8:47:27 Sync: no sync
2019.09.21 8:48:18 Sync:+P25p2 Sync: no sync
2019.09.21 8:49:09 Sync:+P25p2 Sync: no sync
2019.09.21 8:49:21 Sync:+P25p1 unrecoverable NID
2019.09.21 8:49:21 Sync:+P25p1 unknown/invalid DUID: 11
2019.09.21 8:49:21 Sync: no sync
2019.09.21 8:49:28 Sync:+P25p2 Sync: no sync
2019.09.21 8:52:08 Sync:+P25p2 Sync: no sync
2019.09.21 8:52:30 Sync:+P25p2 Sync: no sync
2019.09.21 8:53:36 Sync:+P25p1 unrecoverable NID
2019.09.21 8:53:37 Sync: no sync
2019.09.21 8:54:19 Sync:+P25p2 Sync: no sync
2019.09.21 8:54:28 Sync:+P25p2 Sync: no sync
2019.09.21 9:01:05 Sync:+P25p2 Sync: no sync
2019.09.21 9:02:40 Sync:+P25p2 Sync: no sync
2019.09.21 9:02:43 Sync:+P25p2 Sync: no sync
2019.09.21 9:05:55 Sync:+P25p2
2019.09.21 9:05:55 Sync: no sync
2019.09.21 9:06:17 Sync:+P25p2 Sync: no sync
2019.09.21 9:06:54 Sync:+P25p2 Sync: no sync
2019.09.21 9:07:46 Sync:+P25p2
2019.09.21 9:07:46 Sync: no sync
2019.09.21 9:08:29 Sync:+P25p2 Sync: no sync
2019.09.21 9:11:11 Sync:+P25p2 Sync: no sync
2019.09.21 9:11:20 Sync:+P25p2 Sync: no sync
2019.09.21 9:13:43 Sync:+P25p2 Sync: no sync
2019.09.21 9:13:51 Sync:+P25p2 Sync: no sync
2019.09.21 9:14:20 Sync:+P25p2 Sync: no sync
2019.09.21 9:14:50 Sync:+P25p2 Sync: no sync
2019.09.21 9:16:47 Sync:+P25p2
2019.09.21 9:16:48 Sync: no sync
2019.09.21 9:18:35 Sync:+P25p2 Sync: no sync
2019.09.21 9:19:15 Sync:+P25p2 Sync: no sync
2019.09.21 9:23:05 Sync:+P25p2
2019.09.21 9:23:06 Sync: no sync
2019.09.21 9:23:06 Sync:+P25p1 unknown/invalid DUID: 2
2019.09.21 9:23:07 Sync: no sync
2019.09.21 9:23:07 Sync:+P25p1 TDULC ERR30
2019.09.21 9:23:08 Sync: no sync
2019.09.21 9:23:08 Sync:+P25p1 LDU1 e:FrDrDrFrFrFrErFrFr
2019.09.21 9:23:09 Sync: no sync
2019.09.21 9:23:23 Sync:+P25p1 unknown/invalid DUID: 13
2019.09.21 9:23:24 Sync: no sync
2019.09.21 9:23:39 Sync:+P25p2 Sync: no sync
2019.09.21 9:24:07 Sync:+P25p1 LDU2 e:ErErFr3FrFrFrDrFr
2019.09.21 9:24:08 Sync: no sync

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Posted: Sat Sep 21 2019, 04:45pm

Posted by: GTR8000Posts: 138
Joined: Fri Nov 25 2016, 07:07am

Connecticut has 853.900 licensed in a few counties, and it was in use on the old SmartZone system for the Troop A/I simulcast in and around New Haven County. That system is supposedly off the air now, and I do not see 853.900 listed for any site of the new P25 system.
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