Understanding Capacity Plus trunking

[IanWraith]

Hi Eric

Reading other patent information turned up two new sync patterns that are used for both Time Slot 2 in Direct Mode and for the Rest Channel in a trunked system. I need to try out these patterns and see if it improves the sync on the Rest Channel.

#define DMR_BS_DATA_REST_SYNC 313113333311311311133131
#define DMR_BS_VOICE_REST_SYNC 131331111133133133311313

Thanks for that.

The DMR_BS_VOICE_REST_SYNC also appears in the DMR standard as RC_SYNC. I have just put DMR_BS_VOICE_REST_SYNC into the next version of DMRDecode and it will be interesting to see if it appears.

Ian

 

[EricCottrell]

Hello,

As I am continuing to add DMR Decoding to dsd, I came across what could be the site indication for Linked Capacity Plus.

SLCO = 15 and MFID = 16 is sent in the cach and indicates the rest channel for Capacity Plus. I noticed a few systems in the area that set the same bit in the Reserved portion.

00010000 00 0 00001 00001000
MFID     Op   Rest  Reserved

So could the five bits represent the site with a value of zero meaning no linked capacity plus? This would make sense since other DMR trunked systems put site id information in the SLCO.

00010000 00 0 00001 00001 000
MFID     Op   Rest  Site  Reserved

I also noticed ocassionally csbk+59 popping up with the same data as in the slco

  CACH: Motorola Capacity+ Op:0 RestCh:2 Rsrvd:8 
Sync:  -DMR       mod: GFSK inlvl: 20%  slot0  [slot1]  CC: 1  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 1 RestCh: 2 ActiveCh:         Idle  
Sync:  -DMR       mod: GFSK inlvl: 21% [slot0]  slot1   CC: 1  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 0 RestCh: 2 ActiveCh:         Idle  
Sync:  -DMR       mod: GFSK inlvl: 20%  slot0  [slot1]  CC: 1  CSBK          lb:1 pf:0 Motorola - csbk:111011 fid:00010000 payload:0xE208000000000000
Sync:  -DMR       mod: GFSK inlvl: 20% [slot0]  slot1   CC: 1  CSBK          lb:1 pf:0 Motorola - csbk:111011 fid:00010000 payload:0xC208000000000000
  CACH: Motorola Capacity+ Op:0 RestCh:2 Rsrvd:8

The beginning bits appear to be the same as the other Capacity Plus messages.

11 0 00010 00001 000
FL S Rest  Site

I wonder if csbk+59 is adjacent site information and there are no adjacent sites defined on the systems I saw. I need to find a system with multiple sites to see if the suspected site number changes.

73 Eric

 

[EricCottrell]

Hello,

I should read my own earlier posts on this thread as I already provided the information on decoding CSBK 59+FID=16, but had not put it into dsd yet. The new bit of information is the cach info. The only change would be separating out the Async flag from the Site info.

00010000 00 0 00001 0 0001 000
MFID     Op S  Rest A Site Reserved

Group 255 is the All-Call group and I picked up several group 255 transmissions on a system. The broadcast flag is set in the service options. The Cach changes as well with op code 1 messages alternating with op code 0 messages. Op code 1 messages are described in the patents I mentioned earlier in this thread, except the Rest Channel info is really the active channel fot the talkgroup.

00010000 01 0 00010  11111111
MFID     Op S Active Group

I also ran across some talkgroups with privacy turned on. Privacy is set in the service options and the PI Header is used. I apply 16 bit crc with a Data Type CRC Mask of 0x6969 (Hex) for error detection on the PI Header data. Here are the hex bytes I get.

21 10 01 E9 B1 B5 57 00 00 01
21 10 01 83 D7 15 55 00 00 01
21 10 01 98 F1 AA 0C 00 00 01
21 10 01 BE E0 33 89 00 00 02
21 10 01 53 99 93 E3 00 00 02
21 10 01 06 D6 10 80 00 00 07
21 10 01 BE 58 9C 7D 00 00 FF
   FI                Talkgroup

21 is likely the flco and 10 is the FID indicating Motorola. The 01 could be the key number The four bytes following are different each transmission and could be an initialization vector.

73 Eric

 

[EricCottrell]

Hello,

A nearby city has what appears to be a 2 channel Capacity Plus system (overkill?). I also noticed what appears to be a data channel associated with the system. There seems to be polling of different units and other data transmissions.

 slot0  [slot1]  CC: 1  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x0000000D00FC0000
[slot0]  slot1   CC: 1  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x0000000D00FC0000
 slot0  [slot1]  CC: 1  Slot idle     
[slot0]  slot1   CC: 1  Slot idle     
 slot0  [slot1]  CC: 1  Slot idle     
[slot0]  slot1   CC: 1  Slot idle     
 slot0  [slot1]  CC: 1  Slot idle     
[slot0]  slot1   CC: 1  Slot idle     
 slot0  [slot1]  CC: 1  Slot idle     
[slot0]  slot1   CC: 1  Slot idle     
 slot0  [slot1]  CC: 1  Slot idle     
[slot0]  slot1   CC: 1  Slot idle     
  CACH: Activity Update - Slot 0: Individual Data   Slot 1: Individual Data  
 slot0  [slot1]  CC: 1  Slot idle     
[slot0]  slot1   CC: 1  Slot idle     
 slot0  [slot1]  CC: 1  Slot idle     
[slot0]  slot1   CC: 1  Slot idle     
  CACH: Activity Update - Slot 0: Individual Data   Slot 1: Individual Data  
 slot0  [slot1]  CC: 1  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x0000000E00FC0000
[slot0]  slot1   CC: 1  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x0000000E00FC0000
 slot0  [slot1]  CC: 1  Slot idle

On a recent trip to Montreal I found a Linked Capacity Plus system. The two sites I recieved have a data repeater with similar polling, but transmitted the Capacity Plus status. The first byte of the csbk 101001 payload contains the rest channel.

[slot0]  slot1   CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 0 RestCh: 5 ActiveCh:         Idle  
 slot0  [slot1]  CC: 3  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x0500003E0EFC0000
  CACH: Motorola Linked Capacity+ RestCh:5 Site:1       Rsrvd:0 
[slot0]  slot1   CC: 3  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x0500003E0EFC0000
 slot0  [slot1]  CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 1 RestCh: 5 ActiveCh:         Idle  
[slot0]  slot1   CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 0 RestCh: 5 ActiveCh:         Idle  
 slot0  [slot1]  CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 1 RestCh: 5 ActiveCh:         Idle  
[slot0]  slot1   CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 0 RestCh: 5 ActiveCh:         Idle  
 slot0  [slot1]  CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 1 RestCh: 5 ActiveCh:         Idle  
[slot0]  slot1   CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 0 RestCh: 5 ActiveCh:         Idle  
 slot0  [slot1]  CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 1 RestCh: 5 ActiveCh:         Idle  
  CACH: Motorola Linked Capacity+ RestCh:5 Site:1       Rsrvd:0 
[slot0]  slot1   CC: 3  CSBK          lb:1 pf:0 Motorola - Linked Capacity+ Site Info FL:3 Slot 0 RestCh: 5 Site:1       Neighbors: 4(4) 
 slot0  [slot1]  CC: 3  CSBK          lb:1 pf:0 Motorola - Linked Capacity+ Site Info FL:3 Slot 1 RestCh: 5 Site:1       Neighbors: 4(4) 
[slot0]  slot1   CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 0 RestCh: 5 ActiveCh:         Idle  
 slot0  [slot1]  CC: 3  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x0500003F0EFC0000
  CACH: Motorola Linked Capacity+ RestCh:5 Site:1       Rsrvd:0 
[slot0]  slot1   CC: 3  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x0600003F0EFC0000
 slot0  [slot1]  CC: 3  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 1 RestCh: 6 ActiveCh:         Idle

 slot0  [slot1]  CC: 9  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 1 RestCh: 1 ActiveCh:         Idle  
  CACH: Motorola Linked Capacity+ RestCh:1 Site:4       Rsrvd:0 
[slot0]  slot1   CC: 9  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 0 RestCh: 1 ActiveCh:         Idle  
 slot0  [slot1]  CC: 9  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 1 RestCh: 1 ActiveCh:         Idle  
[slot0]  slot1   CC: 9  CSBK          lb:1 pf:0 Motorola - Capacity+ Ch Status FL:3 Slot 0 RestCh: 1 ActiveCh:         Idle  
 slot0  [slot1]  CC: 9  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x010000450BFC0000
[slot0]  slot1   CC: 9  CSBK          lb:1 pf:0 Motorola - csbk:101001 fid:00010000 payload:0x010000450BFC0000

I assume the difference is to provide the radio with site information in the CACH and the CSBK like a voice channel.

73 Eric

 

[bravo14]

In my area we have 1 Capacity Plus system and I have the psr800 sit on the Control Channel and run the DSDplus 1.51. I don't hear no voices just the Control Channel and the program doesn't show Talkgroups or Freq's. I do see Con+ NID: Site: NL: The channel Activity is blank. I have try to lock out the Control Channel and took out the Control Channel freq out and try to see if I can pick up the other freqs I have no luck hearing any voices. When I put the control back in and run the program it keeps scrolling that's about it. Any ideas thanks.

 

[BamaScan]

DSD Plus will not show the talk group numbers like a scanner will. Sounds like to me you don't have all of the frequencies that the system is using. Go to the FCC database and get the frequencies. Also don't lock out the control channels keep them. It will be a pain to monitor the system because you will have to manually scan the scanner. The scanner will stop on a control channel and you may miss the voice channel. The controls can also act like a voice sometimes.

 

[bravo14]

DSD Plus will not show the talk group numbers like a scanner will. Sounds like to me you don't have all of the frequencies that the system is using. Go to the FCC database and get the frequencies. Also don't lock out the control channels keep them. It will be a pain to monitor the system because you will have to manually scan the scanner. The scanner will stop on a control channel and you may miss the voice channel. The controls can also act like a voice sometimes.

I have all the correct Freqs and put all of them in a Conventional Freqs and have the Control Channel on and I get 2 bars during the day and 3-4 bars at night on the Control Channel. I even tried to pause on a freq and let it sit for a hour or two and nothing coming across.

 

[Forts]

If you have a control channel then it's not a Capacity Plus system, its Connect Plus. You should see a System ID if this is the case. And DSD+ most certainly does show talkgroup ID's... They will be listed in the activity window.

I'd suggest sitting on the control channel and making a recording for us to have a look at. Just hit R and a raw audio file will be created. Upload it to a sharing site like SendSpace and post the link here.

 

[bravo14]

If you have a control channel then it's not a Capacity Plus system, its Connect Plus. You should see a System ID if this is the case. And DSD+ most certainly does show talkgroup ID's... They will be listed in the activity window.

I'd suggest sitting on the control channel and making a recording for us to have a look at. Just hit R and a raw audio file will be created. Upload it to a sharing site like SendSpace and post the link here.

I thought it might be Connect Plus. I'll try the "R" and go from there. I have dropbox I'll try to post all this before I go to work

 

[bravo14]

Here is the file of a few seconds of recording of the Control Channel.

https://www.dropbox.com/s/dn4x7alolhnmhwr/DSDPlus-Raw-Input_2014-11-10@133317.wav?dl=0

Here is some screen shots.

 

[Forts]

As your screenshot shows it's a Connect Plus control channel. System 164, Site 11. Frequencies you have to add yourself, the software won't determine them for you.

 

[bravo14]

As your screenshot shows it's a Connect Plus control channel. System 164, Site 11. Frequencies you have to add yourself, the software won't determine them for you.

I see. Now how I add the freqs?

 

[Forts]

You have to manually edit the DSDPlus.frequencies file.

 

[bravo14]

You have to manually edit the DSDPlus.frequencies file.

I try to open it up and gives this ↓

 

[Forts]

Just open it with any text editor. I use Notepad++ myself.

Also, none of this really has anything to do with the technical details of Capacity Plus trunking, so I'd suggest maybe starting a new thread if you need more assistance.

 

[bravo14]

Just open it with any text editor. I use Notepad++ myself.

Also, none of this really has anything to do with the technical details of Capacity Plus trunking, so I'd suggest maybe starting a new thread if you need more assistance.

Thanks I'll give that a try.

 

[EricCottrell]

Hello,

I am working on figuring out the channel status for channels above 8. I was able to make some progress thanks to jcardani's recordings. Discussion in this thread.
http://forums.radioreference.com/vo...g-thread-plus-raw-recordings.html#post2486983

73 Eric

 

[natedawg1604]

So, I have a question about a somewhat odd Cap+ system. Basically I'm monitoring a single UHF frequency, which registers as Cap+ in DSD+. Notably, I've not found any other frequencies associated with this system. The odd thing is, it appears the system is utilizing 4 system channels on 1 RF frequency. Now, the channel activity screen displays 4 channels active at various times. Unlike other Cap+ systems, when I monitor the one frequency in DSD+ manually, when the rest channel moves between 1/2 and 3/4 in the channel activity window, I continue to see LRRP & ARS messages in the event log, regardless of which channel is active.

As you can see below, this system generates a lot of LRRP & ARS messages. Although it also generates occasional voice headers, I've never heard any audio from the TG's, nor has DSD+ ever generated a per-call audio file from the TG's. (Incidentally, I think this system might be somehow tied-in to another Cap+ system used for voice calls, not really sure though). So, has anyone heard of a Cap+ system using 4 virtual/system channels on a single RF frequency? Here's an except of the event log:

2016/05/31 16:15:24 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=531 39.88251 -104.85647 0mph 338°
2016/05/31 16:15:24 Freq=[UHF Freq] DCC=1 Group call; TG=1 Ch=2 11s
2016/05/31 16:15:30 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=539
2016/05/31 16:15:43 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=642 39.97803 -104.74194 0mph 124°
2016/05/31 16:15:48 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=767 39.97790 -104.74098 0mph 348°
2016/05/31 16:16:06 Freq=[UHF Freq] DCC=1 Group call; TG=1 Ch=4 5s
2016/05/31 16:16:07 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=515 39.97767 -104.74209 0mph 48°
2016/05/31 16:16:48 Freq=[UHF Freq] DCC=1 Group call; TG=1 Ch=4 5s
2016/05/31 16:17:05 Freq=[UHF Freq] DCC=1 Group call; TG=1 Ch=3 4s
2016/05/31 16:17:18 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=930 39.92899 -104.88410 0mph 58°
2016/05/31 16:17:24 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=611 40.13156 -104.98341 4mph 94°
2016/05/31 16:17:31 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=512 39.97786 -104.74116 0mph 52°
2016/05/31 16:17:43 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=689 39.93357 -105.45515 6mph 230°
2016/05/31 16:18:30 Freq=[UHF Freq] DCC=1 Group call; TG=1 Ch=4 1s
2016/05/31 16:18:35 Freq=[UHF Freq] DCC=1 Group call; TG=1 Ch=4 1s
2016/05/31 16:19:07 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=531 39.88261 -104.85648 0mph 46°
2016/05/31 16:19:31 Freq=[UHF Freq] DCC=1 LRRP; Tgt=65535 Src=767 39.97794 -104.74091 0mph 162°
2016/05/31 16:19:36 Freq=[UHF Freq] DCC=1 ARS; Tgt=65535 Src=623

And here's a few excerpts of the terminal log (note the LRRP & ARS messages appear when the Rest Ch. =1, AND 3):

2016.05.31 14:24:12 101111100001000011000011000000000000000000000000000000000000000000000000000000001011101011011011
2016.05.31 14:24:12 +DMR slot2 BS DATA DCC=1 CSBK Cap+ RestCh=3
2016.05.31 14:24:12 [LB=1 CSBKO=62 (?) FID=16 v16=E300 id1=0 id2=0]
2016.05.31 14:24:12 3E 10 E300 000000 000000
2016.05.31 14:24:12 101111100001000011100011000000000000000000000000000000000000000000000000000000001100000110110011
2016.05.31 14:24:12 +DMR slot1 BS DATA DCC=1 CSBK Cap+ RestCh=3
2016.05.31 14:24:12 [LB=1 CSBKO=62 (?) FID=16 v16=C300 id1=0 id2=0]
2016.05.31 14:24:12 3E 10 C300 000000 000000
2016.05.31 14:24:12 101111100001000011000011000000000000000000000000000000000000000000000000000000001011101011011011
2016.05.31 14:24:12 Cap+ RestCh=3
2016.05.31 14:24:12 +DMR slot2 BS DATA DCC=1 CSBK ERR1 [LB=1 CSBKO=41 (?) FID=16 v16=0300 id1=12546 id2=16515072]
2016.05.31 14:24:12 29 10 0300 003102 FC0000
2016.05.31 14:24:12 101010010001000000000011000000000000000000110001000000101111110000000000000000001110010000000010
2016.05.31 14:24:12 +DMR slot1 BS DATA DCC=1 CSBK [LB=1 CSBKO=41 (?) FID=16 v16=0300 id1=12546 id2=16515072]
2016.05.31 14:24:12 29 10 0300 003102 FC0000
2016.05.31 14:24:12 101010010001000000000011000000000000000000110001000000101111110000000000000000001110010000000010
2016.05.31 14:24:12 +DMR slot2 BS DATA DCC=1 Data Header ERR1 DPF=[2:UcData] Tgt=65535 Src=638 Conf=0 SAP=[4:IP Data] Blocks=6 Pad=10 Last=0 Seq=0
2016.05.31 14:24:12 +DMR slot1 BS DATA DCC=1 Data Header DPF=[2:UcData] Tgt=65535 Src=688 Conf=0 SAP=[4:IP Data] Blocks=6 Pad=10 Last=0 Seq=0
2016.05.31 14:24:12 Cap+ RestCh=3
2016.05.31 14:24:12 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data ERR1 45 00 00 3A 00 21 00 00 40 11 5F 15 E..:.!..@._.
2016.05.31 14:24:12 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data 45 00 00 3A 00 4B 00 00 40 11 5E B9 E..:.K..@.^.
2016.05.31 14:24:12 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data 0C 00 02 7E 0D 00 FF FF 0F A1 0F A1 ...~........
2016.05.31 14:24:12 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data 0C 00 02 B0 0D 00 FF FF 0F A1 0F A1 ............
2016.05.31 14:24:12 Cap+ RestCh=3
2016.05.31 14:24:13 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data 00 26 0F BE 0D 1C 22 04 00 00 00 01 .&....".....
2016.05.31 14:24:13 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data ERR1 00 26 7F 7F 0D 1C 22 04 00 00 00 01 .&....".....
2016.05.31 14:24:13 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data 34 1F 81 7F 46 09 51 38 DB 79 86 B5 4...F.Q8.y..
2016.05.31 14:24:13 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data 34 1F 81 7F 46 0A 51 38 E1 59 2F B5 4...F.Q8.Y/.
2016.05.31 14:24:13 Cap+ RestCh=3
2016.05.31 14:24:13 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data 84 56 A3 00 59 6C 00 05 56 2B .V..Yl..V+
2016.05.31 14:24:13 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data 82 95 88 00 57 6C 00 03 56 1A ....Wl..V.
2016.05.31 14:24:13 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data LRRP; Tgt=65535 Src=638 39.97780 -104.74179 0mph 86deg
2016.05.31 14:24:13 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data LRRP; Tgt=65535 Src=688 39.99393 -104.75143 0mph 52deg
2016.05.31 14:24:13 Cap+ RestCh=3
2016.05.31 14:24:13 +DMR slot2 BS DATA DCC=1 CSBK [LB=1 CSBKO=41 (?) FID=16 v16=0300 id1=12802 id2=16515072]
2016.05.31 14:24:13 29 10 0300 003202 FC0000
2016.05.31 14:24:13 101010010001000000000011000000000000000000110010000000101111110000000000000000000000101011010000
2016.05.31 14:24:13 +DMR slot1 BS DATA DCC=1 CSBK [LB=1 CSBKO=41 (?) FID=16 v16=0300 id1=12802 id2=16515072]
2016.05.31 14:24:13 29 10 0300 003202 FC0000
2016.05.31 14:24:13 101010010001000000000011000000000000000000110010000000101111110000000000000000000000101011010000
2016.05.31 14:24:13 +DMR slot2 BS DATA DCC=1 CSBK Cap+ RestCh=3
2016.05.31 14:24:13 [LB=1 CSBKO=62 (?) FID=16 v16=E300 id1=0 id2=0]
2016.05.31 14:24:13 3E 10 E300 000000 000000
2016.05.31 14:24:13 101111100001000011100011000000000000000000000000000000000000000000000000000000001100000110110011
2016.05.31 14:24:13 +DMR slot1 BS DATA DCC=1 CSBK Cap+ RestCh=3
2016.05.31 14:24:13 [LB=1 CSBKO=62 (?) FID=16 v16=C300 id1=0 id2=0]

..... [Rest Channel =1]

2016.05.31 14:16:35 +DMR slot2 BS DATA DCC=1 CSBK Cap+ RestCh=1
2016.05.31 14:16:35 [LB=1 CSBKO=62 (?) FID=16 v16=E100 id1=0 id2=0]
2016.05.31 14:16:35 3E 10 E100 000000 000000
2016.05.31 14:16:35 101111100001000011100001000000000000000000000000000000000000000000000000000000000100111000010101
2016.05.31 14:16:35 Cap+ RestCh=1
2016.05.31 14:16:35 +DMR slot1 BS DATA DCC=1 CSBK Cap+ RestCh=1
2016.05.31 14:16:35 [LB=1 CSBKO=62 (?) FID=16 v16=C100 id1=0 id2=0]
2016.05.31 14:16:35 3E 10 C100 000000 000000
2016.05.31 14:16:35 101111100001000011000001000000000000000000000000000000000000000000000000000000000011010101111101
2016.05.31 14:16:35 +DMR slot2 BS DATA DCC=1 CSBK [LB=1 CSBKO=41 (?) FID=16 v16=0102 id1=11543043 id2=16515072]
2016.05.31 14:16:35 29 10 0102 B02203 FC0000
2016.05.31 14:16:35 101010010001000000000001000000101011000000100010000000111111110000000000000000000110110011010111
2016.05.31 14:16:35 639 group records saved; 73 aliases
2016.05.31 14:16:35 +DMR slot1 BS DATA DCC=1 CSBK [LB=1 CSBKO=41 (?) FID=16 v16=0102 id1=205315 id2=16515072]
2016.05.31 14:16:35 29 10 0102 032203 FC0000
2016.05.31 14:16:35 101010010001000000000001000000100000001100100010000000111111110000000000000000000101100110011011
2016.05.31 14:16:35 +DMR slot2 BS DATA DCC=1 Data Header ERR2 DPF=[2:UcData] Tgt=65535 Src=933 Conf=0 SAP=[4:IP Data] Blocks=4 Pad=6 Last=0 Seq=0
2016.05.31 14:16:35 Cap+ RestCh=1
2016.05.31 14:16:35 +DMR slot1 BS DATA DCC=1 Data Header ERR1 DPF=[2:UcData] Tgt=65535 Src=634 Conf=0 SAP=[4:IP Data] Blocks=6 Pad=10 Last=0 Seq=0
2016.05.31 14:16:35 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data 45 01 00 26 00 57 00 00 40 11 5D CB E..&.W..@.].
2016.05.31 14:16:35 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data ERR1 45 00 00 3A 00 40 00 00 40 11 5E FA E..:.@..@.^.
2016.05.31 14:16:35 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data 0C 00 03 A5 0D 00 FF FF 0F A5 0F A5 ............
2016.05.31 14:16:35 Cap+ RestCh=1
2016.05.31 14:16:35 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data ERR1 0C 00 02 7A 0D 00 FF FF 0F A1 0F A1 ...z........
2016.05.31 14:16:35 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data ERR1 00 12 9D 26 00 08 F0 40 03 39 33 33 ...&...@.933
2016.05.31 14:16:35 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data ERR1 00 26 7F CC 0D 1C 22 04 00 00 00 01 .&....".....
2016.05.31 14:16:35 CACH Sig ERR2
2016.05.31 14:16:35 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data ERR1 00 00 .. ARS; Tgt=65535 Src=933
2016.05.31 14:16:35 +DMR slot1 BS DATA ERR1 DCC=1 Rate 1/2 Data 34 1F 81 7F 43 F4 51 39 18 30 01 B5 4...C.Q9.0..
2016.05.31 14:16:35 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data ERR2 00 00 00 00 00 00 00 00 72 B7 F7 D1 ........r...
2016.05.31 14:16:35 +DMR slot1 BS DATA DCC=1 Rate 1/2 Data 83 B6 79 00 5E 6C 00 01 56 23 ..y.^l..V#
2016.05.31 14:16:36 +DMR slot2 BS DATA DCC=1 Rate 1/2 Data 00 00 00 00 00 00 00 00 72 B7 F7 D1 ........r...

 

[tikev]

Hi,

If you haven't heard any voice call on that frequency, I am pretty sure it's because you are monitoring to the data revert channel of the system. Only data calls can pass on that kind of channel, but it will show what's going on on the voice system, probably to allow the radio which is sending the data to move to the voice channel on a call...


So, you still need to find 2 frequencies to have your system complete

Tikev

 

[EricCottrell]

So, I have a question about a somewhat odd Cap+ system. Basically I'm monitoring a single UHF frequency, which registers as Cap+ in DSD+. Notably, I've not found any other frequencies associated with this system. The odd thing is, it appears the system is utilizing 4 system channels on 1 RF frequency. Now, the channel activity screen displays 4 channels active at various times. Unlike other Cap+ systems, when I monitor the one frequency in DSD+ manually, when the rest channel moves between 1/2 and 3/4 in the channel activity window, I continue to see LRRP & ARS messages in the event log, regardless of which channel is active.

As you can see below, this system generates a lot of LRRP & ARS messages. Although it also generates occasional voice headers, I've never heard any audio from the TG's, nor has DSD+ ever generated a per-call audio file from the TG's. (Incidentally, I think this system might be somehow tied-in to another Cap+ system used for voice calls, not really sure though). So, has anyone heard of a Cap+ system using 4 virtual/system channels on a single RF frequency? Here's an except of the event log:



And here's a few excerpts of the terminal log (note the LRRP & ARS messages appear when the Rest Ch. =1, AND 3):



..... [Rest Channel =1]

Hello,

A Cap+ site can have up to 3 data repeaters defined. They are put in a separate data list from the voice list in the radio programming software. I noticed a similar repeater when I was monitoring a Cap+ system up in Montreal.

73 Eric