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Packet Map update

Well, it’s almost been a year so I updated the Packet map.

Actually, I made a copy of it (preserving historic information) and marked the original read-only.

The new one is titled “Packet Radio Map of Northern Lower Michigan” and ….

…also has a new url: https://drive.google.com/open?id=1n-oq7Z8_DD9gZ4QbETstWjVgAPQ1Gz9e&usp=sharing

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KC8PBX DMR-MARC repeater update

There’s good news and bad news.

First, the bad news:
Effective May 18, 2016, TS2 TG8052 (the Link from DMR-MARC to Mi5-StateWide2) has been terminated.

The Mi5 have decided to port their Mi5 talkgroup to Brandmeister (which is a competitor to the C-bridge used by DMR-MARC).

DMR-MARC desires to have NOTHING to do with Brandmeister due to the illicit development of BM by stealing code from other people without permission or reverse engineering protocols which can have a detrimental effect on the reliability of the network.

In addition, the BM folks have a policy of any talkgroup they syndicate can be used anywhere.

Also, there are several flaky DV4mini dongles on there that burp every couple of minutes with garbage packets.  We did not want to have to listen to that.

Lastly, we have ZERO control over accidental packet loopings (patching talkgroups with 2 origins) and that could mean failed hardware or at the very least annoying audio loops.  The BM system is basically decentralized, and as such, no one is responsible for making sure the system operates without issue. Think of it as Echolink, Allstar, D-Star, and DMR all thrown into one pot with little or no rules.

Due to the actions of the Mi-5 team, as of May 18, 2016, the DMR-MARC team have severed the connection to Mi-5, and the Mi5-SW2 group (TG52 on Mi5, TG8045 on DMR-MARC) will no longer reach the Mi-5 networks.

The issue was discovered late in the day on May 17 and we discussed a communicated and scheduled disconnection, but by early May 18, had discovered some serious security issues with the Link to Mi-5 being subject to passing data associated to the BM networks.

 

 

Now, the good news:

DMR-MARC is taking steps to clarify its administration, standards, mission and goals. At a meeting on 5/19, members of DMR-MARC discussed options related to Brandmeister, DMRPlus, and other topics. The short and vague version is that within the next few months, we expect to see some progressive and impressive changes to the network offerings among DMR-MARC systems. As I type this, plans are being made to design a sane and scalable Talkgroup topology and distribution system which will allow linking to the DMRPlus networks. Those with DV4mini (and similar) products will be able to be reachable from DMR-MARC networks.

 

Some review:

TimeSlot TalkGroup Name Type Purpose
1 3  N.America PTT-activated North America
1 13 WW English permanent World-Wide English-Speaking
1 100 Tech-Talk permanent Technical Discussions
1 3169 Midwest permanent MI-IL-WI-OH area
2 2 N. Michigan permanent Northern Michigan
2 8052 CMEN-MI-SW permanent Link to CMEN TS2/TG52

You’ll notice TS2 is pretty “light” and that is troublesome.
Depending on the anticipated wait time for the new DMRPlus TGs and some talk group reorganization at the C-bridge levels, the above might need to be adjusted somewhat as well..

sooooooo…. don’t go reprogramming your radios just yet. Hang on for a bit and I’ll publish a new list of TGs that will for sure be an upgrade 🙂

 

Thanks,
73- Joe N8CN

 

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KC8PBX Traverse City MotoTrbo Repeater – 442.2875

We’ve updated the Talk Groups that are in each TimeSlot for the repeater here in TVC.
Here are the updated settings:

TimeSlot TalkGroup Name Type Purpose
1 3  N.America PTT-activated North America
1 13 WW English permanent World-Wide English-Speaking
1 100 Tech-Talk permanent Technical Discussions
1 3169 Midwest permanent MI-IL-WI-OH area
2 2 N. Michigan permanent Northern Michigan
2 8052 CMEN-MI-SW permanent Link to CMEN TS2/TG52

 

Changes:
1) Added “Tech Talk” TG 100 on TS 1.  This is for discussing technical projects. There is a web blog that goes hand and hand with this talkgroup to promote sharing of technical ideas and networking with great people:  dmrtechtalk.org.  This TG uses open source DMRlink (not the C-bridge).  There are about a dozen repeaters on this TG currenetly with plans to double that number as a maximum.

2) Midwest 3169 has moved to slot 1 also.

3) MI statewide is TS2 TG8052 which is connected to the CMEN (not DCI) network of 15 or so repeaters.  This maps to their TG52 on slot 2. (reasoning: CMEN used a slightly unorthodox talk group ID system, so DMR-MARC TG 8052 (coordinated) maps to their TG 52.

 

Also, here is an updated coverage map!

KC8PBX Coverage Map
Predictive coverage of the KC8PBX MotoTrbo repeater – Courtesy Radio Mobile Online – www.cplus.org

Thanks,
Joe N8CN