Intermittently Receiving York's P-25 system
Okay, below please find the information of the problem that I am having with my GRE PRS-500. Since this is the system that I am having problems with I thought this would be the place to ask...
As far as I can tell the scanner works fine on conventional frequencies, but it only intermittently works on the York County, PA P-25 system. I live less than 5 miles (as the crow flies) from the York City square, so I am not too far away for good reception. Most recently, the scanner seemed to working fine for a day or two (after a number of days of intermittent operation), but after I added some additional conventional frequencies to other scan lists it didn’t work on the P-25 system at all. While I’m not absolutely certain, I don’t believe I had made any changes to the original trunkgroup or talkgroups since it was originally uploaded to the scanner and working properly from the (at that time) most recent upload.
Please excuse the included detail, but I didn’t want to have a number of replys asking if I did “this” or “that”. Below is what I have done and my findings.
To make solving this problem simpler I started a “New” file so that the Bu-tel software would be at factory default settings, and after uploading the new file into the PSR-500 I am assuming that all the scanner settings would be at “factory” values too. I didn't want any previous changes I may have made to effect the new test.
I don’t know if this matters, but the computer I’m using is a Windows Vista v6.0 with service pack 1.
1. First, I imported “York County Public Safety – Project 25” and the 42 “law enforcement” talk-groups by using the RR Trunk feature found in Bu-tel Software BV – 1.11 build 1 – Full Version.
2. After importing the trunk system and talk groups I found the following results in the GRE Object Editor;
a. Trunk System (TSYS); System Type – MOT VHF/UHF; Alpha Tag – York County Publ; Frequencies (double click) 500.312500, 502.362500, 501.062500, 501.187500, 500.637500; Digital AGC - On; SuperTrack – On; Multisite – Roam; Threshold High – 95; Threshold Low – 75; T-Tables – Custom; Edit TTables – (double-click) Low channel – 0; High Channel – 759; Offset – 0; Base – 500.000000; Step – 12.5; Fleetmap – Type 2; Check all CC – No.
b. Talkgroup ID (TGID); Talkgroup ID – 12100; Alpha Tag - Police 1 City; Scan List - -1; Trunk System - York County Publ; TType – Group; LED – Solid; Delay – On; Delay time – 20; Object ID – 0. All other Talkgroups appear to be have the same settings.
3. I next Uploaded this programming into my PSR-500 scanner. It completed the upload, the scanner completed a restart and I then pressed SCAN to begin scanning. While the scanner was scanning I was listening to the audio of
http://www.ycdesonline.com/P25Police.htm. The audio feed of the website indicated a lot of activity but the scanner did not stop on any talkgroups and I had the volume turned fully clockwise. I monitored the audio feed for about 10 minutes with the scanner not stopping on any talkgroups. The scanner indicated that it was scanning the the lowest line on the LCD displayed “York County Publ”.
4. Suspecting that the TSYS type (MOT VHF/UHF) is wrong I changed the scanner’s settings PGM>EDIT>TSYS>EDIT > from the above setting to “Type: P25 Auto”. I saved the setting and pressed scan again. The scanner scanned as previously described, but did not stop on any talkgroups. After about 10 minutes or listening to a lot of activity on the on-line audio feed of the Police Talkgroups I also tried the P25 Manual for a similar duration but that made no difference either.
So, does anyone have any ideas? I suspect that there may be some setting that is wrong since the original Trunk System download type was wrong (MOT VHF/UHF vs. P25 Auto), but I’m not sure. I have noticed that when the scanner seems to be working properly the LCD display intermittently shows a letter “T” to the left of the letter “G”, but when it is not working properly the “T” does not display. Currently, the “T” is not displayed at all.
Any help you can offer is greatly appreciated. I suspect that the problem is a minor one, but I can’t figure it out.
- Greg