bunkeyslocksmith
Member
I used to monitor a site around ten or more years ago in Saskatoon at RPC on Central Ave. I used a Uniden HomePatrol 1 with a decent modified TV antenna and it received well. That also was when most of the city went P25 Phase 1 for almost all services, which can be heard loud and clear with the exception of Police, both city and neighboring RCMP are fully encrypted.
The site I am wondering about has changed to digital (non encrypted as far as I can tell) from analog when the rest of city implemented the P25 system. The old analog frequency was and still is 155.9850. All that can be heard now with the HomePatrol is digital encoded voice that can not be heard (squealing).
I have since began trunk monitoring with OP25 on Linux and DSDPlus Fastlane (windows) and have it working reasonably well using a good discone antenna. At this time and has been the case for the last 10 years or so my good old HomePatrol 1 picks up digital audio that is distorted digital not compatible with the old HomePatrol which is only a P25 Phase 1 capable scanner (I think).
I purchased the Extreme upgrade which frankly I consider to be of little use for me. I also tried programing it with the free trial of ARC software which was good, but not great and I would not feel it justifies purchasing for the aging HomePatrol 1.
Using my various monitor methods with RTL-SDR and the software mentioned, I see nothing indicating activity on the normal operational frequency I used to listen to, which was 155.9850. It appears that whatever encoding they presently use must be something I am missing.
Doubting they are associated to the city P25 system. I have attempted to monitor sources on RadioReference databases for Saskatoon and through eliminations think I have narrowed it down to Prairie Mobile or Becker communications being the carrier.
No information is available for the couple suspect source NXDN96 site 1 and LTR site 11 (may be the other way around). The listed control channels are not correct but in the same ranges. Internet searches with supposed spectrum allocations shows nothing. RadioReference and scanner programming software the GPS of that site located at 2125 Central Ave Saskatoon RPC, are in the close vicinity of the site as site 11 and 1 both Prairie Mobile and no identifying information.
I would appreciate any help in identifying what type of digital encoding is being used and if the voice channel can be heard on a different frequency. I am pretty new to SDR but always playing around with it to learn more. Feel free to private message me if you have any insight into this paradox. Thanks.
The site I am wondering about has changed to digital (non encrypted as far as I can tell) from analog when the rest of city implemented the P25 system. The old analog frequency was and still is 155.9850. All that can be heard now with the HomePatrol is digital encoded voice that can not be heard (squealing).
I have since began trunk monitoring with OP25 on Linux and DSDPlus Fastlane (windows) and have it working reasonably well using a good discone antenna. At this time and has been the case for the last 10 years or so my good old HomePatrol 1 picks up digital audio that is distorted digital not compatible with the old HomePatrol which is only a P25 Phase 1 capable scanner (I think).
I purchased the Extreme upgrade which frankly I consider to be of little use for me. I also tried programing it with the free trial of ARC software which was good, but not great and I would not feel it justifies purchasing for the aging HomePatrol 1.
Using my various monitor methods with RTL-SDR and the software mentioned, I see nothing indicating activity on the normal operational frequency I used to listen to, which was 155.9850. It appears that whatever encoding they presently use must be something I am missing.
Doubting they are associated to the city P25 system. I have attempted to monitor sources on RadioReference databases for Saskatoon and through eliminations think I have narrowed it down to Prairie Mobile or Becker communications being the carrier.
No information is available for the couple suspect source NXDN96 site 1 and LTR site 11 (may be the other way around). The listed control channels are not correct but in the same ranges. Internet searches with supposed spectrum allocations shows nothing. RadioReference and scanner programming software the GPS of that site located at 2125 Central Ave Saskatoon RPC, are in the close vicinity of the site as site 11 and 1 both Prairie Mobile and no identifying information.
I would appreciate any help in identifying what type of digital encoding is being used and if the voice channel can be heard on a different frequency. I am pretty new to SDR but always playing around with it to learn more. Feel free to private message me if you have any insight into this paradox. Thanks.