November 2015 - Allstar-Digital

DMRGateway Talk Groups and Networks.
by Steve Zingman 25 Nov '15

25 Nov '15

DMR-MARC: Time Slot #1 - Group Call 1 = World Wide (PTT activated with 5 min inactivity timeout) Time Slot #1 - Group Call 13 = WW English Time Slot #1 - Group Call 3 = North America Time Slot #1 - Group Call 310 = TAC 310 (PTT) Time Slot #2 - Group Call 2 = Local Time Slot #2 - Group Call 3112- Florida Statewide Time Slot #2 - Group Call 3174- Southeast Regional DCI: Time Slot #1 - Group Call 3160 DCI 1 Time Slot #1 - Group Call 3777215 DCI Comm 1 Time Slot #2 - Group Call 3100 = DCI Bridge 2 DMRPlus: Time Slot #2 - Group Call 9 = DMRPlus reflectors 73, Steve N4IRS and Mike N4IRR This is the last post on app_rpt. all further discussion will be on: AllStar Digital Discussion at: <http://lists.keekles.org/cgi-bin/mailman/listinfo/allstar-digital> All welcome. -- "Anything is possible if you don't know what you are talking about." 1st Law of Logic

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System Fusion
by Matthew Pitts 23 Nov '15

23 Nov '15

Some preliminary bumps in support; we probably will have to interface to the HRI-200, since it appears that at least one of the digital voice sub-modes is not supported by the DV3000 without writing code to modify the AMBE data stream before feeding it into the DV3000. We can probably use the HRI-200 in the same way as we would a DMK URI, but we need to figure out how to get it to switch between analog and digital to be able to have it be functional. Matthew Pitts N8OHU -- Sent from my Moto X with K-9 Mail. Please excuse my brevity.

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P25 over Allstar via Quantar repeaters
by Bryan Fields 16 Nov '15

16 Nov '15

I've been discussing what's know as Quantar Site Connect (QSC) with the person running that project. Unfortunately it's closed source and he's unwilling to share with others, so it has me thinking of how to interface it with asterisk. The v.24 interface from the Quantar repeater is basically 9600 bps serial, and is not encrypted at all. This gives access to the raw IMBE frames, and I suspect it would be easy to get this into asterisk (heck a usb serial adapter would work). There are some docs on it up here. http://vk2lk.com/wiki/index.php/Understanding_the_Motorola_Quantar_V.24_int… and there is the referenced thread on p25.ca We'd be able to setup a talkgroup to Allstar node ID scheme and by changing the talkgroup of your subscriber radio you could talk to different nodes. Just a thought, or we could ignore that all together. A RPi2 with a serial dongle and a audio interface could link digital and analog communications from the same system. Vocode it to PCM and send it out as IAX2 trunk traffic. Thoughts? -- Bryan Fields 727-409-1194 - Voice 727-214-2508 - Fax http://bryanfields.net

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DMR and dv3000
by Robert Newberry 11 Nov '15

11 Nov '15

I'm trying my best to understand this. It's my understanding that maybe using a mototrbo repeater and feeding the digital data steam into a DV3000 we should get a ulaw or pcm or something in analog out the other side right? Is my simplistic understanding of this right? I have a xpr8300 sitting on a shelf I can experiment with? I'm guessing there is a big gotcha here I'm missing like my simple understanding is not so easily done. N1XBM Apparare Scientor Paratus Communicare Allstar Node # 27086, 41540, 41812, 42086

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Thoughts on VoIP to DV3000
by Matthew Pitts 07 Nov '15

07 Nov '15

All right guys, Here are some of my thoughts on this: 1) We will need the DV3000 to get D-STAR AMBE into the system. 2) We should be able to get DMR audio into it without needing an external AMBE chip; however, it may require an addition to the repeater programming software that isn't standard to activate the capabilities. 3) Wires-X is an unknown at this point, though I suspect we can accommodate it somehow. Matthew Pitts N8OHU -- Sent from my Moto X with K-9 Mail. Please excuse my brevity.

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DCI
by Robert Newberry 05 Nov '15

05 Nov '15

So I've been looking at DMR networks. I am across EWARN which appears tied into DCI. They have all kinds of links going on all of the different formats. Even a allstar node. Anyone know anything about this and how they're doing it? N1XBM Apparare Scientor Paratus Communicare Allstar Node # 27086, 41540, 41812, 42086

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Re: [Allstar Digital] DMR-DSTAR bridge
by Robert Newberry 04 Nov '15

04 Nov '15

If you're not seeing it then I must have it wrong. I'm trying hard but I think I'll get egg on my face. Page three says the gateway uses ulaw audio format to transfer linear digital audio to the repeater. The dstar channel driver uses ulaw audio in digital frames too. I believe you'll need a dongle of sorts. I feel like I'm stepping in some deep shit. Allstar network wasn't even in my vocabulary two years ago. N1XBM Apparare Scientor Paratus Communicare Allstar Node # 27086, 41540, 41812, 42086

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DMR-DSTAR bridge
by Robert Newberry 04 Nov '15

04 Nov '15

Has anyone successfully used the hytera repeater to feed the data stream into the dstar channel driver on allstar. There is a document on it on the ham-dmr.de website. Wondering what your thoughts are on how it sounds? We have a friend who is an over the road truck driver. He uses his DV dongle to connect to a xrf reflector to connect to us on analog and it sounds fine both ways. Looks like a good way to get DMR on allstar. One time slot for allstar and the second for what ever talkgroup you wish. N1XBM Apparare Scientor Paratus Communicare Allstar Node # 27086, 41540, 41812, 42086

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