Greenville county Parker fire going digital?
- Thread starter KMG54
- Start date
- Status
W8RMH
Feed Provider Since 2012
The DB shows that 461.350 is depreciated and is actually a business frequency. 453.37500 is licensed for DMR.
I'm not sure about 461.350. But I know it is a DMR system running Color Code 9. That frequency is licensed to Greenville City Center Hotel downtown (WQXD204) but not for a repeater on that frequency. It may be Glenraven Woven Mills in Anderson County, which is licensed for a repeater on this frequency (WQSI525).
3 Greenville County FDs are using DMR channels for talk-around channels. I haven't verified which departments are which, but they are:
452.500 CC1 TG 6000 SLOT 1
461.725 CC1 TG 9000 SLOT 1
461.725 CC1 TG 4000 SLOT 2
These frequencies are licensed to Communication Service Center (WPNV775) on Paris Mtn. Additional frequencies on this license are also in use, with three of them part of a Cap+ system. There's little to no traffic on the Cap+ system. These three frequencies above are definitely "conventional" DMR channels.
There are also two private ambulance services operating on some of these UHF frequencies, also in Conventional Mode:
464.4375 CC1 TG 10 SLOT 1
464.7375 CC1 TG 20 SLOT 2
An additional talkgroup, 255, is also active on these frequencies, but I haven't nailed down which. It's infrequently active, mostly during the day, when I can't monitor. It may be a school security service, possibly BJU or GTC. BJU is also licensed for a DMR repeater on 464.525. Furman may be on 464.475 DMR but I haven't caught them from my location.
Greenville Sanitation is operating a UHF Cap+ system, WQRN866. 460.1125 and 460.2375 are voice channels, both CC1. 460.3625 is data transmissions only. TGs active are 10 and 11 plus some others.
Greenville Water (RenWa) still operates an analog LTR standard system on UHF.
There is lots of DMR in the upstate waiting to be discovered.
3 Greenville County FDs are using DMR channels for talk-around channels. I haven't verified which departments are which, but they are:
452.500 CC1 TG 6000 SLOT 1
461.725 CC1 TG 9000 SLOT 1
461.725 CC1 TG 4000 SLOT 2
These frequencies are licensed to Communication Service Center (WPNV775) on Paris Mtn. Additional frequencies on this license are also in use, with three of them part of a Cap+ system. There's little to no traffic on the Cap+ system. These three frequencies above are definitely "conventional" DMR channels.
There are also two private ambulance services operating on some of these UHF frequencies, also in Conventional Mode:
464.4375 CC1 TG 10 SLOT 1
464.7375 CC1 TG 20 SLOT 2
An additional talkgroup, 255, is also active on these frequencies, but I haven't nailed down which. It's infrequently active, mostly during the day, when I can't monitor. It may be a school security service, possibly BJU or GTC. BJU is also licensed for a DMR repeater on 464.525. Furman may be on 464.475 DMR but I haven't caught them from my location.
Greenville Sanitation is operating a UHF Cap+ system, WQRN866. 460.1125 and 460.2375 are voice channels, both CC1. 460.3625 is data transmissions only. TGs active are 10 and 11 plus some others.
Greenville Water (RenWa) still operates an analog LTR standard system on UHF.
There is lots of DMR in the upstate waiting to be discovered.
You also want to check the old Com Service Moto TRS Furman used to be on.. Its an MotoTRBO DMR TRS now.
Yep, I've been working on 800MHz too. BMW has a Con+ system but I can't monitor it from my location. Greenville Schools also has a Con+ system in 800 that I haven't spent much time on. CSC does have use of some of their 800Mhz freqs for DMR - some are Con+, some are Cap+, maybe some conventional.
Monitoring overnight, TG 230 CC9 Slot 1 was active on 461.350. Appears to be conventional. For a 1 hour period between 12:15am - 1:15am, it seems like this might have changed to a Cap+ rest channel, because I see lots of activity listed for other channels and talkgroups. But that activity stopped at 1:15am and didn't recur. Maybe a band opening occurred during that time.
Monitoring overnight, TG 230 CC9 Slot 1 was active on 461.350. Appears to be conventional. For a 1 hour period between 12:15am - 1:15am, it seems like this might have changed to a Cap+ rest channel, because I see lots of activity listed for other channels and talkgroups. But that activity stopped at 1:15am and didn't recur. Maybe a band opening occurred during that time.
aa4lb
Member
I live in Simpsonville and hear the FD dispatch on 460.625 normal FM, but the trucks appear to answer back on 453.075 digital. That's using my PRO106 scanner. I have a Tytera MD-380 DMR radio, but without something to go on as far as TG I'm not hearing anything on the MD-380.
I will program the 3 fire departments above into the MD-380 and see if I hear anything.
I will program the 3 fire departments above into the MD-380 and see if I hear anything.
I note that the license for 453.075 (WQJL912) doesn't provide for digital transmissions. That's not to say they aren't using a digital format, just that they are not licensed for it.
If you're adventurous and good with computers, give DSDPlus a try with one of the inexpensive RTL SDR dongles. It takes a while to learn how to use it, but it will show you all the information you need to program DMR system into your MD-380.
The three FD systems I listed above are pretty quiet most of the time. Listen at 8am each morning for radio checks. The two private ambulance services are much more active.
If you're adventurous and good with computers, give DSDPlus a try with one of the inexpensive RTL SDR dongles. It takes a while to learn how to use it, but it will show you all the information you need to program DMR system into your MD-380.
The three FD systems I listed above are pretty quiet most of the time. Listen at 8am each morning for radio checks. The two private ambulance services are much more active.
mattbrissey
Member
452.500 is being used as Berea FD ch2
aa4lb
Member
Well Brian has really got me heading down a new trail...
I bought a RTL-SDR, installed it and SDR# and DSD+. What an adventure! I've had limited time to devote to this project, but last night I finally got DSD+ to print some meaningful data in the screen. I don't hear any voice yet, but do see this information.
CC=1 SLOT=1 TG=11 (This should be enough to program my MD-380, but ran out of time for that.)
I also see RID=7000, RID=1050, RID=8000. I guessing this must be individual radios. 7000 for engine 7, 8000 for engine 8 and 1050 for dispatch. I'm basing this on what units were just dispatched on the non-DMR channel.
My not hearing voice may be something with the VB Cable setup. This was a little confusing and seems backwards to me. I'll play with this some and see it I can get voice.
Also, I'll input my new information into my MD-380 and see if I hear anything there.
I bought a RTL-SDR, installed it and SDR# and DSD+. What an adventure! I've had limited time to devote to this project, but last night I finally got DSD+ to print some meaningful data in the screen. I don't hear any voice yet, but do see this information.
CC=1 SLOT=1 TG=11 (This should be enough to program my MD-380, but ran out of time for that.)
I also see RID=7000, RID=1050, RID=8000. I guessing this must be individual radios. 7000 for engine 7, 8000 for engine 8 and 1050 for dispatch. I'm basing this on what units were just dispatched on the non-DMR channel.
My not hearing voice may be something with the VB Cable setup. This was a little confusing and seems backwards to me. I'll play with this some and see it I can get voice.
Also, I'll input my new information into my MD-380 and see if I hear anything there.
Good work! DMR certainly is an interesting new monitoring target for me also, now that I've learned how to do it.
aa4lb
Member
I programmed the SFD information from DSD+ into my Tytera MD-380 and heard nothing. I found a post on the Tytera Forum that digital receive would not work without a transmit frequency. So I loaded the transmit frequency and it not works great. It really does not have to be the correct TX frequency, just has to have a frequency.
Also got the synthesized voice working on DSD+. There was activity on 451.375 (TG=1000, SLOT=1, CC=2) last night, but not enough to confirm who or what.
I listen to 461.350, but never heard anything there. I hope to get a discone up this weekend and that may help.
Also got the synthesized voice working on DSD+. There was activity on 451.375 (TG=1000, SLOT=1, CC=2) last night, but not enough to confirm who or what.
I listen to 461.350, but never heard anything there. I hope to get a discone up this weekend and that may help.
SFD = Simpsonville Fire Department? If so, can you post the details? Maybe this is in relation to the information you posted in post #10, TG=11, CC=1, SLOT=1? Which frequency are you receiving this on? 453.075, presumably?
Keep in mind that on "business" DMR frequencies, there tends to be a lot of non-voice digital data transmitted. With DMR Ham repeaters, not so much. But I frequently see the Green "Activity" LED on my MD-380 light up, but don't hear voice. Looking at DSDPlus, it's non-voice data. Might be LRRP (location data) or something else.
aa4lb
Member
Yes, Simpsonville Fire Department.
453.075 is DMR TG=11 SLOT=1 CC=1
You still hear the dispatch of the call on 460.625 NFM, but after that all comms are on DMR channel.
453.075 is DMR TG=11 SLOT=1 CC=1
You still hear the dispatch of the call on 460.625 NFM, but after that all comms are on DMR channel.
Thanks for the clarification.
- Status
