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dmr_administration [2017/10/28 16:12]
kd6kpc [Talk Group Database] 		dmr_administration [2021/02/27 14:11] (current)
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 DMR repeater page can be found at https://www.repeaterbook.com/dmr DMR repeater page can be found at https://www.repeaterbook.com/dmr
  
-=== What is DMR? ===+===== What is DMR? =====
 Please read the document [[http://www.trbo.org/docs/Amateur_Radio_Guide_to_DMR.pdf|here]]. All admins should have a basic understanding of DMR, how it works, and how it is set up. Please read the document [[http://www.trbo.org/docs/Amateur_Radio_Guide_to_DMR.pdf|here]]. All admins should have a basic understanding of DMR, how it works, and how it is set up.
  
-DMR is particularly challenging for Hams as it is digital technology playing in an analog world. Hams are used to just dialing in a frequency, tone, and offset and being able to get on a repeater. This his not how DMR works. DMR was designed for the commercial and government world, and with the next generation of DMR hitting the market, the older generation equipment is flooding the secondary market and being snapped up by Hams. It used to be cost prohibitive to purchase DMR radios, but there are plenty of discount radios being brought to market now. DMR requires a "code plug", which is essentially a memory of the radio's settings, modes, channels, and other parameters needed to access the repeater. These code plugs can be a challenge to create as the learning curve is steep.+DMR is particularly challenging for Hams as it is digital technology playing in an analog world. Hams are used to just dialing in a frequency, tone, and offset and being able to get on a repeater. This is not how DMR works. DMR was designed for the commercial and government world, and with the next generation of DMR hitting the market, the older generation equipment is flooding the secondary market and being snapped up by Hams. It used to be cost-prohibitive to purchase DMR radios, but there are plenty of discount radios being brought to market now. DMR requires a "code plug", which is essentially a memory of the radio's settings, modes, channels, and other parameters needed to access the repeater. These code plugs can be a challenge to create as the learning curve is steep.
  
 There is a lot of peer pressure within the Ham community for new Hams coming into DMR to learn how to create their own code plugs. To create one, the Ham needs to know the repeater's input and output frequencies, the color code (like PL tone), and the available talk groups. The talk groups each have an ID code and the correct ID code must be entered in to access that talk group. DMR is also divided into two time slots. Two time slots can be used at the same time. talk groups are usually assigned to one talk group or the other, so knowing which time slot a talk group is on is important. The final parameter is how the talk group is activated. It can be on full-time, only come up when someone activates it by bringing up that talk group on their radio and keying up, or during a scheduled time. There is a lot of peer pressure within the Ham community for new Hams coming into DMR to learn how to create their own code plugs. To create one, the Ham needs to know the repeater's input and output frequencies, the color code (like PL tone), and the available talk groups. The talk groups each have an ID code and the correct ID code must be entered in to access that talk group. DMR is also divided into two time slots. Two time slots can be used at the same time. talk groups are usually assigned to one talk group or the other, so knowing which time slot a talk group is on is important. The final parameter is how the talk group is activated. It can be on full-time, only come up when someone activates it by bringing up that talk group on their radio and keying up, or during a scheduled time.
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 Repeaterbook attempts to gather the information needed for Hams to create their own code plugs.  Repeaterbook attempts to gather the information needed for Hams to create their own code plugs. 
 +
 +==== Nomenclature ====
 +On Repeaterbook.com, we use certain nomenclature that matches the DMR community to reduce the probability of confusion. it is important to know these terms and what they mean.
 +
 +=== Wide Network ===
 +This is the flavor of the DMR system. There are three different flavors, DMR-MARC, DMRplus (DMR+), DCI, and BrandMeister. The architecture of each is a little bit different. We track the Wide Network because it influences the architecture of a client-radio codeplug.
 +
 +=== Local Network ===
 +A local network is a group of repeaters that have very similar talk groups. They tend to be linked to each other through the talk groups in various ways and connect to the same c-bridge.
 +
 +=== c-Bridge ===
 +This is like a server. The Local Networks connect to the c-bridge which handles the routing of talk groups. The c-bridge can route talk groups to other repeaters within the same local network or send it out to other c-bridges or even cross over to other Wide Networks.
  
  
dmr_administration.1509225125.txt.gz ยท Last modified: 2021/02/27 14:07 (external edit)

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