So, I was wondering if anyone in Baldwin County has had any success monitoring the NEXEDGE system that these cities use. I acquired an SDR a while back for SW/HF monitoring and since conditions have been poor down in those bands, I've expanded into seeing what else this thing can do. With DSDplus I've had good luck decoding digital modes including NXDN.
I can't do trunking since that would require two radios, but with the SDRuno application I can have up to four virtual windows (three is maximum with my slower processor) and so I've been able to build a mini-tracking system with some of the frequencies listed on this site. For example, the Foley site shows four frequencies. After finding the control channel (which has been 460.0875 every time I've checked this week) that leaves three for audio. As long as there's not traffic on two or more frequencies at once, it actually works pretty well and I'm having no real difficulty following conversations. For example, here at 1:30 am there's not much going on in Foley so everything is coming through clearly. Earlier this evening Daphne and Foley were both full of activity and these three channels on the Foley system stayed pretty much full-duty!
I've snagged some data for this system, but since I'm not really familiar with trunking systems I wanted to post all this here before actually submitting it to the database, in case it's missing something critical. If this is useful, I'll be a happy camper.
In addition to the System ID of 69 listed on the page for this system, I'm also seeing a System ID of 0 when listening to the Foley tower site. 69 appears to pop up when I'm tuned to Magnolia Springs, and possibly Summerdale. There was no activity or control channel audible for me tonight to double check on the Summerdale frequencies.
Here are the groups I've logged and the ones I've been able to identify based on audio and/or the "radio alias" field that some transmissions include:
Groups:
One thing that surprised me is the sheriff patch or interconnect is completely in the clear, when it is listed as encrypted on the AFRN system.
I can't do trunking since that would require two radios, but with the SDRuno application I can have up to four virtual windows (three is maximum with my slower processor) and so I've been able to build a mini-tracking system with some of the frequencies listed on this site. For example, the Foley site shows four frequencies. After finding the control channel (which has been 460.0875 every time I've checked this week) that leaves three for audio. As long as there's not traffic on two or more frequencies at once, it actually works pretty well and I'm having no real difficulty following conversations. For example, here at 1:30 am there's not much going on in Foley so everything is coming through clearly. Earlier this evening Daphne and Foley were both full of activity and these three channels on the Foley system stayed pretty much full-duty!
I've snagged some data for this system, but since I'm not really familiar with trunking systems I wanted to post all this here before actually submitting it to the database, in case it's missing something critical. If this is useful, I'll be a happy camper.
In addition to the System ID of 69 listed on the page for this system, I'm also seeing a System ID of 0 when listening to the Foley tower site. 69 appears to pop up when I'm tuned to Magnolia Springs, and possibly Summerdale. There was no activity or control channel audible for me tonight to double check on the Summerdale frequencies.
Here are the groups I've logged and the ones I've been able to identify based on audio and/or the "radio alias" field that some transmissions include:
Groups:
- 001 = ?
- 100 = ?
- 101 = Baldwin 911 (Central FD Dispatch?)
- 109 = ?
- 120 = Foley PD
- 121 = ?
- 137 = ?
- 142 = ?
- 251 = Daphne PD
- 260 = ?
- 276 = Daphne FD
- 287 = ?
- 351 = ?
- 430 = ?
- 501 = Foley FD
- 1176 = Baldwin Central (Sheriff, unencrypted)
- 1617 = ?
One thing that surprised me is the sheriff patch or interconnect is completely in the clear, when it is listed as encrypted on the AFRN system.
