How to identify Cap+ Site Frequency Channels

CrewRest

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I'm not new to scanning but I am new to DSD+(FastLane) and digital. I have a 2 site system (it's a Hotel/Resort) that is not in the Database. DSD+ shows that each site has 3 frequencies / 6 Channels. On site one I let DSD+ run on just one of the Frequencies. It returned that the Frequency was CH1/2 on site 1 and Ch3/4 on site 2. The DMR search database and the FCC database show a total of 6 Frequencies for the License. I have changed the frequency to all the other Frequencies to see if it would give me more Channels but it did not. Now what I find very interesting is that each channel has a different DCC . What should I be doing to finding the correct mix? I'm close enough to both sites that I'm not losing data. Comments please!
 

CrewRest

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You won't find the missing channel IDs until the rest channels change on each site. This may take a while (hours? a day or more?) Every Cap+ system is different. Keep an eye on the remaining channels, it may take a while to fill in the unknowns
OK, I do see the Rest Channel jump around, change channel. Is that what you mean by changing?
 

Whiskey3JMC

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OK, I do see the Rest Channel jump around, change channel. Is that what you mean by changing?
Right, you'll see data bursts every few seconds on the active rest channel. Park your SDR here when you see this and it should give you the channel ID info for that particular frequency/timeslot pair. So in this example the rest channel is the first slot of the third LCN frequency on the system (Ch ID 5 & 6)
1668471032323.png
 
Last edited:

CrewRest

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Didn't have to wait long, lucky me! SO! the Frequencies for the system are

Freq, DCC, Site, Ch

451.775, 4, 1, 1/2
461.100, 7, 2, 1/2
461.475, 6,
463.450, 5,
463.625, 8,
463.9375, 9,

It appears that the DCC may be pointing to the Ch numbers. Now that I have the two CH 1/2 for both sites what next? Same process?
 
Last edited:

dave3825

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If you have not seen this, it's in the notes file.


Code:
Cap+ monitoring
  ---------------

    Follow these steps to monitor / follow the rest channel and voice calls on a Cap+ system
     a) select a network ID
        Cap+ systems do not broadcast a network ID
        If the system has been added to the RadioReference database, use its page number
        Otherwise, assign the system a unique NID (9999, for example)

     b) create an entry in the DSDPlus.networks file
        Example:
          Cap+, 9999, "Mayberry PD"

     c) if the network has multiple sites, create entries in the DSDPlus.sites file
        Example:
          Cap+, 9999, 1, "North"
          Cap+, 9999, 2, "South"
          Cap+, 9999, 3, "East"
          Cap+, 9999, 4, "West"

     d) for each known system frequency, create a channel record in the DSDPlus.frequencies file
        Initially, use invalid channel numbers
        Example:
          ; Mayberry PD North
          Cap+, 9999, 1, 99, 450.5000, 0.0, 0
          Cap+, 9999, 1, 99, 451.2625, 0.0, 0
          Cap+, 9999, 1, 99, 454.9125, 0.0, 0
          Cap+, 9999, 1, 99, 455.5000, 0.0, 0

     e) tune CC FMPA/FMP24 to an active system channel (note: TCP link required)
        CC DSD+ will scan the DSDPlus.frequencies file for a Cap+ record with the same frequency;
        The first matching record will be used
        CC DSD+ will use the frequency record to establish the system's network ID
        CC DSD+ will use the NID to display the network and current site names

     f) at some point, DSD+ should determine the channel's ordering
        and display it in the event log window
        Example:
          "450.500000 is first Cap+ repeater (Ch1 and Ch2)"
        Use the information to edit the channel's record in the DSDPlus.frequencies file
        Note: continue to use invalid channel numbers
        Example:
          Cap+, 9999, 1, 101, 450.5000, 0.0, 0

     g) repeat e) and f) for each active system channel
        Example:
          "451.262500 is third Cap+ repeater (Ch5 and Ch6)"
          "454.912500 is fourth Cap+ repeater (Ch7 and Ch8)"
          "455.500000 is second Cap+ repeater (Ch3 and Ch4)"
          Cap+, 9999, 1, 101, 450.5000, 0.0, 0
          Cap+, 9999, 1, 105, 451.2625, 0.0, 0
          Cap+, 9999, 1, 107, 454.9125, 0.0, 0
          Cap+, 9999, 1, 103, 455.5000, 0.0, 0

     h) when the ordering of all of a site's active channels has been determined,
        edit the channel records so they have the correct channel numbers
        Example:
          Cap+, 9999, 1, 1, 450.5000, 0.0, 0
          Cap+, 9999, 1, 3, 455.5000, 0.0, 0
          Cap+, 9999, 1, 5, 451.2625, 0.0, 0
          Cap+, 9999, 1, 7, 454.9125, 0.0, 0
        CC DSD+ will now automatically direct CC FMPA/FMP24 to follow the rest channel
        and direct VC FMPA/FMP24 to follow voice calls

     i) in the future, to monitor this site, tune CC FMPA/FMP24 to the current rest channel
 

CrewRest

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Database Admin
Joined
Feb 13, 2001
Messages
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Location
Sarasota FL
If you have not seen this, it's in the notes file.


Code:
Cap+ monitoring
  ---------------

    Follow these steps to monitor / follow the rest channel and voice calls on a Cap+ system
     a) select a network ID
        Cap+ systems do not broadcast a network ID
        If the system has been added to the RadioReference database, use its page number
        Otherwise, assign the system a unique NID (9999, for example)

     b) create an entry in the DSDPlus.networks file
        Example:
          Cap+, 9999, "Mayberry PD"

     c) if the network has multiple sites, create entries in the DSDPlus.sites file
        Example:
          Cap+, 9999, 1, "North"
          Cap+, 9999, 2, "South"
          Cap+, 9999, 3, "East"
          Cap+, 9999, 4, "West"

     d) for each known system frequency, create a channel record in the DSDPlus.frequencies file
        Initially, use invalid channel numbers
        Example:
          ; Mayberry PD North
          Cap+, 9999, 1, 99, 450.5000, 0.0, 0
          Cap+, 9999, 1, 99, 451.2625, 0.0, 0
          Cap+, 9999, 1, 99, 454.9125, 0.0, 0
          Cap+, 9999, 1, 99, 455.5000, 0.0, 0

     e) tune CC FMPA/FMP24 to an active system channel (note: TCP link required)
        CC DSD+ will scan the DSDPlus.frequencies file for a Cap+ record with the same frequency;
        The first matching record will be used
        CC DSD+ will use the frequency record to establish the system's network ID
        CC DSD+ will use the NID to display the network and current site names

     f) at some point, DSD+ should determine the channel's ordering
        and display it in the event log window
        Example:
          "450.500000 is first Cap+ repeater (Ch1 and Ch2)"
        Use the information to edit the channel's record in the DSDPlus.frequencies file
        Note: continue to use invalid channel numbers
        Example:
          Cap+, 9999, 1, 101, 450.5000, 0.0, 0

     g) repeat e) and f) for each active system channel
        Example:
          "451.262500 is third Cap+ repeater (Ch5 and Ch6)"
          "454.912500 is fourth Cap+ repeater (Ch7 and Ch8)"
          "455.500000 is second Cap+ repeater (Ch3 and Ch4)"
          Cap+, 9999, 1, 101, 450.5000, 0.0, 0
          Cap+, 9999, 1, 105, 451.2625, 0.0, 0
          Cap+, 9999, 1, 107, 454.9125, 0.0, 0
          Cap+, 9999, 1, 103, 455.5000, 0.0, 0

     h) when the ordering of all of a site's active channels has been determined,
        edit the channel records so they have the correct channel numbers
        Example:
          Cap+, 9999, 1, 1, 450.5000, 0.0, 0
          Cap+, 9999, 1, 3, 455.5000, 0.0, 0
          Cap+, 9999, 1, 5, 451.2625, 0.0, 0
          Cap+, 9999, 1, 7, 454.9125, 0.0, 0
        CC DSD+ will now automatically direct CC FMPA/FMP24 to follow the rest channel
        and direct VC FMPA/FMP24 to follow voice calls

     i) in the future, to monitor this site, tune CC FMPA/FMP24 to the current rest channel
Thanks Dave, I had not!
 

Ubbe

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Messages
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Location
Stockholm, Sweden
If that where all the frequencies from the license then enter them in frequency order for Site1.

451.7750,1,1/2 LCN1
461.4750,1,3/4 LCN2
463.6250,1,5/6 LCN3

461.1000,2,1/2 LCN1
463.4500,2,3/4 LCN2
463.9375,2,5/6 LCN3

/Ubbe
 

CrewRest

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Database Admin
Joined
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Messages
180
Location
Sarasota FL
If that where all the frequencies from the license then enter them in frequency order for Site1.

451.7750,1,1/2 LCN1
461.4750,1,3/4 LCN2
463.6250,1,5/6 LCN3

461.1000,2,1/2 LCN1
463.4500,2,3/4 LCN2
463.9375,2,5/6 LCN3

/Ubbe
At one point that's what I did. I did find on some systems that is exactly what they did, but here is how it turned out;

461.7750,1,1/2 LCN1
463.4500,1,3/4 LCN2
461.4750,1,5/g LCN3

461.1000,2,1/2 LCN1
463.6250,2,3/4 LCN2
463.9375,2,5/6 LCN3
 
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