I have been switching between Scan and Search, the two original ones pick up everything, sometimes with a bit of distortion, the two new ones I have with me are picking up nothing. They all have the same firmware and same codeplugs.
996P2 and CLMRN
- Thread starter sefrischling
- Start date
Good catch!
The two that work just find are not displaying DAT either.
Is 773.93125 the actual current control channel?
It is, with one other scanner, an older one, picking up DEEP Police East, DEEP Police Marine and Troop E.
wtp
Member
is there any way to borrow an SDS unit or a unication to try at the station ?
I'd like to point out that you can't really "hear" simulcast distortion (multipath, more accurately). In your first post you mention knowing what that sounds like, however the simple fact is that if the scanner is having trouble locking onto the control channel (which it very clearly is as evidenced by the lack of DAT being displayed while dwelling), then you're probably experiencing an issue with the signals from multiple subsites being received by the scanner, which it is going to have issues with. Why do the other scanners work fine, then? Who knows, can't answer that, perhaps they are on different antennas and/or happen to be in a sweet spot where the multipath is not as strong.
Make sure you're comparing apples to apples and are using the same antennas/antenna system with all scanners being tested, and make sure they are in the same location when testing. Even a difference of a few inches can make a difference when dealing with linear simulcast.
Make sure you're comparing apples to apples and are using the same antennas/antenna system with all scanners being tested, and make sure they are in the same location when testing. Even a difference of a few inches can make a difference when dealing with linear simulcast.
wtp
Member
with some questions, the answer you get, is not the one you want. that is your answer .
He may have to change the display mode to see DAT or LNK.
Need to be in display mode 1 and parked on talkgroup
This brings up a good point, and may just be the exact answer. Your newer 996's are fresh out of the box. They've been calibrated, the RF section is still new, so they are a lot more sensitive than the ones that have been in service for quite some time. No two scanners have the exact same level of sensitivity, and I have seen where that changes over the years. Without a real attenuator (not the internal one) to determine if this is the case, you can experiment with other ways to drop the signal some.
One of the more confusing things that happens here (on RR) is exactly what GTR mentioned above. People see the word distortion and automatically think it's audio distortion, like a broken signal, so they'll hear it in the voice. The issue at play is RF signal distortion from simulcast transmitters. It's a digital signal, you can't hear it. So the "distortion" isn't audible, per se. You only notice the effects of it based on the receive quality of the signal you're trying to receive. The signal distortion can happen on any digital signal, conventional or trunked. Phase I or II. RISCON near you has some areas where it's also bad, and they're a built out Phase I system.
I use 8 for the filter but the signal I am receiving is 5 bars on all 3 sites. I don't think it makes a big difference.
My experience is if you are trying to scan a simulcast system and you don't see the CC frequency or if it is appearing intermittently (obviously with no traffic), you are having the issues with the simulcast reception.
If I recall, there is a way to get the scanner to stream the CC data to a file with Proscan. Perhaps try that with each new and old to see if the scanners are behaving differently.
My experience is if you are trying to scan a simulcast system and you don't see the CC frequency or if it is appearing intermittently (obviously with no traffic), you are having the issues with the simulcast reception.
If I recall, there is a way to get the scanner to stream the CC data to a file with Proscan. Perhaps try that with each new and old to see if the scanners are behaving differently.
tvengr
Well Known Member
Do the new 996P2's work at the firehouse where you have a direct line of sight to a tower?
After reading all your posts, I get that you have ruled out simulcast distortion by using the same programming, location, and antenna as the older 996P2, and still no joy.
Wondering if you tried the Waterford, RISCON, or Suffolk County (New P2 system) systems, I have been in Groton by the water and got all 3 of those on my 996P2
Im 1/2 Mile from a CLMRN site and 1 of my 6 996P2s will not trunk that site but the other 5 will with the ATT on, I'm thinking it might be a better RX than the others, and is getting overloaded even with the ATT on, but I can see a G & A site both around 6 miles away and it works on those fine
Just some food for thought for you, maybe one of my scanner issues is the same as yours?
Wondering if you tried the Waterford, RISCON, or Suffolk County (New P2 system) systems, I have been in Groton by the water and got all 3 of those on my 996P2
Im 1/2 Mile from a CLMRN site and 1 of my 6 996P2s will not trunk that site but the other 5 will with the ATT on, I'm thinking it might be a better RX than the others, and is getting overloaded even with the ATT on, but I can see a G & A site both around 6 miles away and it works on those fine
Just some food for thought for you, maybe one of my scanner issues is the same as yours?
I have not tested Suffolk, but I have Waterford loaded in the radios. I have had no issues with the Waterford system in Niantic, Waterford, New London, Oakdale or Uncasville. All 5x5. This past Saturday I was monitoring RISCON from Westerly to Wickford, changing antennas along the way, no issues. Also 5x5. I have tossed in the NLON trunking system to monitor NLON Fire, no issues there either. It is just CLMRN with the two new radios.
Uniden tech support seems to no longer exist.
Yes, the 996P2 scanners were all swapped for SDS200 scanners.
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