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dmr_networks

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dmr_networks [2024/06/16 20:49] – created g4nabdmr_networks [2024/06/16 21:01] (current) – g4nab
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 **Servers.** **Servers.**
  
-Dependent on the which network, there will be upwards of 1 server providing a dedicated operating system that will form pathways for the voice data packets depending upon the service provider.+Dependent on which network, there will be upwards of 1 server providing a dedicated operating system that will form pathways for the voice data packets depending upon the service provider.
  
 There is a complicated systems of inter-relational databases that determine the availability of a path, that check whether it has been fixed or not by a known repeater/hotspot, the validity of the path, and the authority for the path provided by the system, and a database to insure a user can in fact legitimately use the system, and a database of connected subscribers of all types. There is a complicated systems of inter-relational databases that determine the availability of a path, that check whether it has been fixed or not by a known repeater/hotspot, the validity of the path, and the authority for the path provided by the system, and a database to insure a user can in fact legitimately use the system, and a database of connected subscribers of all types.
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 There are various menus and searches available from the left hand side. Most users of the Network have personal access to their own profile on which to manage a hotspot or a repeater. There are various menus and searches available from the left hand side. Most users of the Network have personal access to their own profile on which to manage a hotspot or a repeater.
  
-While DMR users will be aware of the principles of the two time slots available, the BrandMeister only records the information according to their use and control by a system operator in a repeater, or a user on his terminal. Only the path to a Talk Group is relevant for the individual server.+While DMR users will be aware of the principles of the two time slots available, the BrandMeister only records the information according to their use and control by a system operator in a repeater, or a user on his terminal. Only the path to a Talk Group is relevant for the individual server. 
  
-In the UK - Talk Groups 1-90 do not pass over the network, except Talk Group 75 that is used to cluster repeaters together in the Salop Cluster (Shropshire). This can also be accessed by using TG 23575. Talk Group 91 with Sub Groups 901, 902 and 903 to which to QSY. The UK in general has opted to use TG 2350 as the calling group as opposed to 235 the MCC Talk Group, although All talk groups above 90 will pass over the network. They do not have to be named, as no one person has complete knowledge of designations. Use the number, it is so much simpler. The full table of common Talk Groups can be found in the UK Wiki.  +You could unwisely transmit TG 2350 on Time Slot 1 of a repeater, while it is already fixed on Time Slot 2. This effectively makes use of both Time Slots simultaneously. BrandMeister just carries the data, it doesn't concern itself with Time Slots. 
 + 
 +In the UK - Talk Groups 1-90 do not pass over the network, except Talk Group 75 that is used to cluster repeaters together in the Salop Cluster (Shropshire). This can also be accessed by using TG 23575. Talk Group 91 with Sub Groups 901, 902 and 903 to which to QSY. The UK in general has opted to use TG 2350 as the calling group as opposed to 235 the MCC Talk Group.  
 +Talk Groups do not need to be named, as no one person has complete knowledge of designations. Use the number, it is so much simpler.  
 + 
 +The full table of common Talk Groups can be found in the UK Wiki.  
  
 Some UK repeater keepers have chosen to connect to the Irish BrandMeister server 2721, but this has no effect on the operation, other than perhaps a difference in latency of the Data Connectivity. Some UK repeater keepers have chosen to connect to the Irish BrandMeister server 2721, but this has no effect on the operation, other than perhaps a difference in latency of the Data Connectivity.
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 As it stands currently, all MMDVM Repeaters in the UK are connected to the ‘A’ server, Hotspot Users are generally  connected to the ‘F’ server, and Motorola and Hytera Repeaters are connected to the ‘K’ server, and the so-called FreeDMR network that has some other differences has its own server. All four are interlinked that allows the 235, 80, 81, 82, 83, 84, and regional talk groups to pass between them. As it stands currently, all MMDVM Repeaters in the UK are connected to the ‘A’ server, Hotspot Users are generally  connected to the ‘F’ server, and Motorola and Hytera Repeaters are connected to the ‘K’ server, and the so-called FreeDMR network that has some other differences has its own server. All four are interlinked that allows the 235, 80, 81, 82, 83, 84, and regional talk groups to pass between them.
 +
 +As an overview I see a DMR communciation system that has been fractured for sometime for probably several reasons, that I shall not discuss. There are several networks with BrandMeister and IPSC2 being the most populated. There are currently 84 UK Repeaters on BrandMeister and 70 on IPSC2, however there are a small number like mine - GB7HT - that are on both. There are 9 repeaters on FreeStar (FreeDMR).
  
 **__About me__** **__About me__**
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 I do this from my experience as a long-time communicator from the professional world.  I do this from my experience as a long-time communicator from the professional world. 
  
-As an overview I see a system that has been fractured for sometime for probably several reasons, that I shall not discuss. There are several networks with BrandMeister and IPSC2 being the most populated. There are currently 84 UK Repeaters on BrandMeister and 70 on IPSC2, however there are a small number like mine - GB7HT - that are on both. There are 9 on FreeStar (FreeDMR). 
  
 I joined DMR just as BrandMeister was developing, and my first entry was via the short-lived DV4Mini stick. But it was interesting. Then I built the first of three repeaters. I joined DMR just as BrandMeister was developing, and my first entry was via the short-lived DV4Mini stick. But it was interesting. Then I built the first of three repeaters.
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 I have since been deeply involved in Raspberry Pi and SVXLink, about which I shall write in due course. I have since been deeply involved in Raspberry Pi and SVXLink, about which I shall write in due course.
 +
 +Chris G4NAB
  
dmr_networks.1718570953.txt.gz · Last modified: 2024/06/16 20:49 by g4nab