RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog
 

Go Back   The RadioReference.com Forums > Scanners, Receivers and Related Equipment Forums > Uniden Forums > Uniden Tech Support


Uniden Tech Support - For discussion of all technical aspects of current or future Uniden scanners.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 02-09-2018, 5:16 PM
Go-West's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2010
Location: Dona Ana county, NM
Posts: 217
Question Strange behavior this morning

I monitor the Las Cruces radio system with my 436 and around 11 it lost control of the bars indicating reception, or not. Was working fine then stopped with LC. Its working fine with Dona Ana County VHF/UHF and city of El Paso P-25 Phase I is working okay. Just Weird. LC's system is working fine with my other scanners.

Any ideas? Thanks in advance.
Reply With Quote
Sponsored links
  #2 (permalink)  
Old 02-12-2018, 1:23 PM
Go-West's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2010
Location: Dona Ana county, NM
Posts: 217
Default

Its working fine today after leaving it alone for a couple of days.
Reply With Quote
  #3 (permalink)  
Old 02-13-2018, 7:41 AM
Member
  Amateur Radio Operator
Amateur Radio
 
Join Date: Jan 2016
Location: Schwenksville, PA
Posts: 231
Default

Do you have all the control channels programmed? Maybe they lost the main control transmitter and had to go to an alternate. If that one wasn't defined, you'd lose the entire system.
Reply With Quote
  #4 (permalink)  
Old 02-13-2018, 8:58 AM
jonwienke's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jul 2014
Posts: 5,405
Default

I agree, a control channel change is the most likely cause. Make sure you have ALL the site frequencies programmed. The additional scanning overhead is less than 1%, and you will have fewer outages.
__________________
Uniden scanner internal GPS installations--making mobile scanning work the way it always should have.
Reply With Quote
  #5 (permalink)  
Old 02-13-2018, 9:44 AM
Go-West's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2010
Location: Dona Ana county, NM
Posts: 217
Default

I have all twelve frequencies programmed in the correct order and they worked fine with my other older scanners.
Reply With Quote
Sponsored links
  #6 (permalink)  
Old 02-14-2018, 4:23 PM
KR7CQ's Avatar
Member
  Shack Photos
Shack photos
Amateur Radio Operator
Amateur Radio
 
Join Date: May 2013
Location: Phoenix
Posts: 298
Default

I'm seeing the same issue on the Phoenix RWC P25 PH1 simulcast a with my 436. I can literally see the tower from my desk at work and reception is typically pristine (rare for a scanner on simulcast). However lately I have noticed periods of hours at a time where there is nothing....no signal bars, no transmissions received. I only have the control channels entered so putting all frequencies in is my next step, but I sure hope that's it.

Update: All frequencies (not just listed control frequencies) entered in the CC table, still not a peep from one of the busiest PD's in the country...something is very wrong. I would honestly rather it just be the scanner than what I fear it might be....an unannounced switch to encryption. They already encrypted all hot call TG's, and of course all tac ops and C2C and info TG's were encrypted from day one, so this might be it for PPD monitoring...sure hope not. Once I get home to turn on my G4 I'll know for sure I guess. I've posted a request for reports on this simulcast from other AZ scanner buddies, so I'll probably hear on that before I get home, and will update with what I find out.

Last edited by KR7CQ; 02-14-2018 at 5:00 PM..
Reply With Quote
  #7 (permalink)  
Old 02-14-2018, 4:32 PM
Go-West's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2010
Location: Dona Ana county, NM
Posts: 217
Thumbs up

Thanks. Its working fine and my older scanners are working well, too. GRE 500, BCD396T (2).
Reply With Quote
  #8 (permalink)  
Old 02-14-2018, 5:02 PM
KR7CQ's Avatar
Member
  Shack Photos
Shack photos
Amateur Radio Operator
Amateur Radio
 
Join Date: May 2013
Location: Phoenix
Posts: 298
Default

Quote:
Originally Posted by Go-West View Post
Thanks. Its working fine and my older scanners are working well, too. GRE 500, BCD396T (2).
If this is the scanner, I may be switching to something else...not tolerable.

Added information: Signal bars come up full scale for about a half second, randomly, maybe on average every 30 seconds, and then all bars are gone.

Last edited by KR7CQ; 02-14-2018 at 5:09 PM..
Reply With Quote
  #9 (permalink)  
Old 02-14-2018, 5:35 PM
Go-West's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Aug 2010
Location: Dona Ana county, NM
Posts: 217
Default

I've had the 436 for 3.5 years and this was the first issue I'd ever experienced with it. I did pick up a pro voice talk group over that last few days.
Reply With Quote
  #10 (permalink)  
Old 02-14-2018, 5:44 PM
KR7CQ's Avatar
Member
  Shack Photos
Shack photos
Amateur Radio Operator
Amateur Radio
 
Join Date: May 2013
Location: Phoenix
Posts: 298
Default

Quote:
Originally Posted by Go-West View Post
I've had the 436 for 3.5 years and this was the first issue I'd ever experienced with it. I did pick up a pro voice talk group over that last few days.
Overall I have felt that it's the best handheld scanner ever made, and does better on simulcast than other scanners in my neck of the woods. However Phoenix PD is where 90% of the action happens and if it's going to flake out on that simulcast that's not going to work. It's done this before, for short periods, but I chalked it up as an anomaly. But now this is an obvious problem that is not letting up. Best case would actually be that they have added new frequencies, but I consider that unlikely in this case. I'll know by tonight.
Reply With Quote
  #11 (permalink)  
Old 02-14-2018, 6:04 PM
jonwienke's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jul 2014
Posts: 5,405
Default

I would do a careful side-by-side comparison to see exactly what the 436 is scanning vs the other scanners. The 436 is better than most scanners at handling simulcast.
__________________
Uniden scanner internal GPS installations--making mobile scanning work the way it always should have.
Reply With Quote
  #12 (permalink)  
Old 02-14-2018, 6:19 PM
KR7CQ's Avatar
Member
  Shack Photos
Shack photos
Amateur Radio Operator
Amateur Radio
 
Join Date: May 2013
Location: Phoenix
Posts: 298
Default

Quote:
Originally Posted by jonwienke View Post
I would do a careful side-by-side comparison to see exactly what the 436 is scanning vs the other scanners. The 436 is better than most scanners at handling simulcast.
Agreed, the X36 scanners are the best scanners on simulcast, I've done all of the comparisons and they are the clear winners, at least here in Phoenix. I will check it against a BCD396XT, and a PRO-106 tonight, as well as my G4. If those are all silent, I'll know instantly that the issue is with my simulcast.

***Update: The 436 just came to life after hours of hearing nothing on this simulcast. It appears this scanner does have some kind of annoying issue that has cropped up. Very frustrating, as I liked this scanner, so I sure hope I can find a solution to this issue.

Last edited by KR7CQ; 02-14-2018 at 6:26 PM..
Reply With Quote
  #13 (permalink)  
Old 02-14-2018, 8:19 PM
UPMan's Avatar
Uniden Representative
  Premium Subscriber
Premium Subscriber
Amateur Radio Operator
Amateur Radio
 
Join Date: Apr 2004
Location: Arlington, TX
Posts: 11,305
Default

I would try a new SD card. A dying card can cause some random things to happen.
__________________
Uniden Product Ninja
Who is UpMan and why doesn't he answer my email/phone call?
Professional Scanner Developer
Personal Blog
Reply With Quote
  #14 (permalink)  
Old 02-14-2018, 9:23 PM
jonwienke's Avatar
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Jul 2014
Posts: 5,405
Default

Get a high endurance card. They last longer.
__________________
Uniden scanner internal GPS installations--making mobile scanning work the way it always should have.
Reply With Quote
  #15 (permalink)  
Old 02-14-2018, 11:19 PM
KR7CQ's Avatar
Member
  Shack Photos
Shack photos
Amateur Radio Operator
Amateur Radio
 
Join Date: May 2013
Location: Phoenix
Posts: 298
Default

Quote:
Originally Posted by jonwienke View Post
Get a high endurance card. They last longer.
I'll try that, can't hurt.
Reply With Quote
  #16 (permalink)  
Old 02-15-2018, 3:56 PM
KR7CQ's Avatar
Member
  Shack Photos
Shack photos
Amateur Radio Operator
Amateur Radio
 
Join Date: May 2013
Location: Phoenix
Posts: 298
Default

Update: I've tried everything including switching cards but no dice. The 436 now decides to simply not receive the RWC Simulcast A, for whatever period of time it feels like not working (zero reception / transmissions). Then in maybe a half an hour, maybe a few hours later, it starts working normally.

Sitting on the same desk the G4 just hums along with constant activity.

I think I'll be going back to the nearly ten year old PRO-106, my BCD396XT, and to using my G4, and put this thing on ebay. That's too much money sitting there for something that works when it decides to work on the system I most want to monitor (all other simulcasts / systems work perfectly...of course).
Reply With Quote
  #17 (permalink)  
Old 02-15-2018, 4:10 PM
Member
  Premium Subscriber
Premium Subscriber
Amateur Radio Operator
Amateur Radio
 
Join Date: Aug 2017
Posts: 11
Default

Have you tried significantly changing the location of the 436. Has this also occurred far away from your primary monitoring location? It is possible there could be intermodulation interference, or maybe a nearby device splattering the band. Other radios could be immune or more resistant to one of these forms of interference.
Reply With Quote
  #18 (permalink)  
Old 02-15-2018, 4:20 PM
KR7CQ's Avatar
Member
  Shack Photos
Shack photos
Amateur Radio Operator
Amateur Radio
 
Join Date: May 2013
Location: Phoenix
Posts: 298
Default

Quote:
Originally Posted by K4FLB View Post
Have you tried significantly changing the location of the 436. Has this also occurred far away from your primary monitoring location? It is possible there could be intermodulation interference, or maybe a nearby device splattering the band. Other radios could be immune or more resistant to one of these forms of interference.
Great question, and unfortunately I have seen this problem to a lesser extent in other locations, primarily at home. The strangest thing is that this is a relatively recent issue that has cropped up and there I'm fairly confident that there are no changes which I have made that could have impacted this issue.

Sent from my SM-G955U using Tapatalk
Reply With Quote
  #19 (permalink)  
Old 02-15-2018, 4:30 PM
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Dec 2002
Location: KZZV - SE Ohio
Posts: 2,386
Default

Have you tried the analyse feature? I'm assuming the 436 has it, I have a 536. It will show you a better display of signal strength.



Quote:
Originally Posted by KR7CQ View Post
Update: I've tried everything including switching cards but no dice. The 436 now decides to simply not receive the RWC Simulcast A, for whatever period of time it feels like not working (zero reception / transmissions). Then in maybe a half an hour, maybe a few hours later, it starts working normally.

Sitting on the same desk the G4 just hums along with constant activity.

I think I'll be going back to the nearly ten year old PRO-106, my BCD396XT, and to using my G4, and put this thing on ebay. That's too much money sitting there for something that works when it decides to work on the system I most want to monitor (all other simulcasts / systems work perfectly...of course).
__________________
BCD536,Hp2(e),HP-1(e)x2, BC780, BCD996t ,BCD996P2, BCD325P2, Pro 2005, 2006(x2), Pro34,VR500,AT803,R5000and other RF capture devices

Reply With Quote
  #20 (permalink)  
Old 02-15-2018, 4:35 PM
KR7CQ's Avatar
Member
  Shack Photos
Shack photos
Amateur Radio Operator
Amateur Radio
 
Join Date: May 2013
Location: Phoenix
Posts: 298
Default

No because since I sit in view of the tower, and since my other scanners and G4 all read full scale, if it does read low signal that's an issue with the scanner not the signal.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 6:46 AM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
All information here is Copyright 2012 by RadioReference.com LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2015 by RadioReference.com LLC Privacy Policy  |  Terms and Conditions