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Kenwood released their first D-Star capable HT (D74) in Oct 2016. Given the price, it was quite successful. Color screen, full keypad, excellent support for D-Star, triband including 220. I remember attending a presentation at Dayton, I think in 2018, where 2 guys from Kenwood were imploring the audience to contact Kenwood asking they build a mobile radio built on the D74 HT’s design. They said Kenwood listens to customers more seriously than employees. Well, 7 years later, Kenwood is releasing the D750, a mobile based on the D75, meaning it does D-Star. No info on price yet. https://www.dxzone.com/new-kenwood-tm-d750a/ Jim – K6JM

The W6CX-DV Multimode DV repeater (145.0 +2.5) now processes DTMF commands in D-Star mode. I am looking into getting it also working on certain other DV modes. Probably the biggest use would be to send an RF command to link to a reflector different from the default. For example, if you have a radio with DTMF keys, you could key up and hit *03003 . This would request relinking to REF030C. Simply sending # will unlink from the current reflector. It is always nice, when done, to link back to our default of REF014C (DTMF ** will do that), but if there is no RF activity on D-Star after something like 10 minutes, it will automatically link back to the default. Here is a summary about DTMF keys on a Multimode repeater from https://sin.groups.io/g/main/topic/dtmf_codes_for_steering_your/76290513 COMMON DTMF COMMANDS 0 Voice / Info Announcements # Disconnect Active Link ** Reconnect to default connection A Disconnect CCS call routing *00501 Link to DPlus Reflector REF005A ( The last 2 digits translate from 01 to 26 and equal A to Z ) B02102 Link to reflector XRF021 B ( The last 2 digits translate from 01 to 26 and equal A to Z ) D00126 Link to reflector DCS001 Z ( The last 2 digits translate from 01 to 26 and equal A to Z ) A = 1 B = 2 C = 3 D = 4 E = 5 F = 6 G = 7 H = 8 I = 9 J = 10 K = 11 L = 12 M = 13 N = 14 O = 15 P = 16 Q = 17 R = 18 S = 19 T = 20 U = 21 V = 22 W = 23 X = 24 Y = 25 Z = 26 Jim

The W6CX-DV Multimode DV repeater (145.0 +2.5) now processes DTMF commands in D-Star mode. I am looking into getting it also working on certain other DV modes. Probably the biggest use would be to send an RF command to link to a reflector different from the default. For example, if you have a radio with DTMF keys, you could key up and hit *03003 . This would request relinking to REF030C. Simply sending # will unlink from the current reflector. It is always nice, when done, to link back to our default of REF014C (DTMF ** will do that), but if there is no RF activity on D-Star after something like 10 minutes, it will automatically link back to the default. Here is a summary about DTMF keys on a Multimode repeater from https://sin.groups.io/g/main/topic/dtmf_codes_for_steering_your/76290513 COMMON DTMF COMMANDS 0 Voice / Info Announcements # Disconnect Active Link ** Reconnect to default connection A Disconnect CCS call routing *00501 Link to DPlus Reflector REF005A ( The last 2 digits translate from 01 to 26 and equal A to Z ) B02102 Link to reflector XRF021 B ( The last 2 digits translate from 01 to 26 and equal A to Z ) D00126 Link to reflector DCS001 Z ( The last 2 digits translate from 01 to 26 and equal A to Z ) A = 1 B = 2 C = 3 D = 4 E = 5 F = 6 G = 7 H = 8 I = 9 J = 10 K = 11 L = 12 M = 13 N = 14 O = 15 P = 16 Q = 17 R = 18 S = 19 T = 20 U = 21 V = 22 W = 23 X = 24 Y = 25 Z = 26 Jim From: [email protected] <[email protected]> On Behalf Of Jim - K6JM via groups.io Sent: Thursday, January 2, 2025 7:39 PM To: [email protected] Subject: [W6CX-DigitalVoice] New REF014 Facebook group Tim K6BIV let me know some West Coast hams have set up a new Facebook group called "D-Star REF014 West Coast Repeater Linking". He suggested we let MDARC D-Star users know. To join, just go to https://www.facebook.com/groups/1645885849689144 and click the Join button in upper right. Jim - K6JM W6CX Digital Voice Repeater Admin

Tim K6BIV let me know some West Coast hams have set up a new Facebook group called "D-Star REF014 West Coast Repeater Linking". He suggested we let MDARC D-Star users know. To join, just go to https://www.facebook.com/groups/1645885849689144 and click the Join button in upper right. Jim - K6JM W6CX Digital Voice Repeater Admin

Trevor WA6JAU, Grant K6CBK and I worked on the South Peak's repeater site today. We first got the DV repeater's Dashboard to display normally and were able to get the repeater to link to the appropriate default reflectors and talkgroups. Trevor and Grant also worked on other update tasks. I then upgraded the DV controller's computer to a faster Raspberry Pi. So all is working properly and we have a more robust computer for the DV controller. If you have a D-Star radio, or one that does Fusion. DMR or M17, please feel free to make use of our MultiMode digital voice repeater. Check out https://www.mdarc.org/repeater-systems/digital-voice for more info. You are more than welcome to use RF commands to link any of these modes to other reflectors or talkgroups that you'd like to listen to and hopefully use for QSOs. Ideally, when done, you will relink to the default, but it will also do that automatically after some time with no local RF activity using that DV mode. Obviously, don't relink or try another talkgroup if the repeater is busy, but You will likely not have to wait long. Have fun! Jim - K6JM W6CX DV repeater admin

We are scheduled to go up to the South Peak site on Thursday to hopefully fix the problem. Again, due to a networking problem, the DV repeater does repeat local RF transmissions but is unable to link to D-Star, M17 or Fusion reflectors, or to DMR talkgroups. Jim - K6JM -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Jim - K6JM via groups.io Sent: Monday, November 11, 2024 9:44 AM To: [email protected]; [email protected] Subject: [W6CX-DigitalVoice] Linking not working on DV repeater The W6CX DV repeater (145.0 +2.5) has been running and able to repeat local RF, but starting Thursday evening, it has been unable to link or connect to reflectors or talkgroups on the internet. We have tried to fix this remotely, but that has not worked, so we are planning a trip up to the South Peak repeater site to fix. Will post here when more is known. Jim - K6JM

The W6CX DV repeater (145.0 +2.5) has been running and able to repeat local RF, but starting Thursday evening, it has been unable to link or connect to reflectors or talkgroups on the internet. We have tried to fix this remotely, but that has not worked, so we are planning a trip up to the South Peak repeater site to fix. Will post here when more is known. Jim - K6JM

You can see the video on YouTube at https://youtu.be/S9dH4FuGOdg From: [email protected] <[email protected]> On Behalf Of Jim - K6JM via groups.io Sent: Thursday, October 17, 2024 7:05 PM Subject: [W6CX-DigitalVoice] Pacificon forum Sat 10am by digital voice/digital data leaders For those attending Pacificon, a heads up about an interesting presentation on Saturday (10am Salon G/H). Prsenters have been leaders in digital voice developments for nearly a decade. Jonathan Naylor, G4KLX, who developed the idea for multi-mode digital voice (MMDVM) hotspots and repeater modems, then wrote the open-source software to make it work, has travelled from the UK to Pacificon to talk about this project. He plans to discuss some exciting new capabilities that will make it easier to work across DV modes legally. For fans of digital data modes, he will also cover a high speed TNC based on standard MMDVM hardware and new firmware which will allow for 9600 bps in a 12.5 kHz bandwidth and higher speeds (up to 38400 bps) in wider bandwidths. Jim McLaughlin, KI6ZUM, founder of ZUM Radio and contributor to the design of the original MMDVM modems and hotspot boards, will join Jonathan to talk about the improvements as well as new hardware being developed. Note that our W6CX Digital Voice repeater uses a ZUM Radio MMDVM Modem and uses the MMDVM software written by G4KLX. Learn more about MDARC’s DV repeater at https://www.mdarc.org/repeater-systems/digital-voice Jim – K6JM

If you are info digital data modes, this presentation will also talk about new methods to get faster baud rates with existing bandwidths. The presenters will talk about development work on a new high speed TNC and the associated software. So if either digital voice or digital data modes are of interest to you, be sure to check out this presentation at Pacificon today at 10am. Jim – K6JM From: [email protected] <[email protected]> On Behalf Of Jim - K6JM via groups.io Sent: Thursday, October 17, 2024 7:05 PM Subject: [W6CX-DigitalVoice] Pacificon forum Sat 10am by digital voice/digital data leaders For those attending Pacificon, a heads up about an interesting presentation on Saturday (10am Salon G/H). Prsenters have been leaders in digital voice developments for nearly a decade. Jonathan Naylor, G4KLX, who developed the idea for multi-mode digital voice (MMDVM) hotspots and repeater modems, then wrote the open-source software to make it work, has travelled from the UK to Pacificon to talk about this project. He plans to discuss some exciting new capabilities that will make it easier to work across DV modes legally. For fans of digital data modes, he will also cover a high speed TNC based on standard MMDVM hardware and new firmware which will allow for 9600 bps in a 12.5 kHz bandwidth and higher speeds (up to 38400 bps) in wider bandwidths. Jim McLaughlin, KI6ZUM, founder of ZUM Radio and contributor to the design of the original MMDVM modems and hotspot boards, will join Jonathan to talk about the improvements as well as new hardware being developed. Note that our W6CX Digital Voice repeater uses a ZUM Radio MMDVM Modem and uses the MMDVM software written by G4KLX. Learn more about MDARC’s DV repeater at https://www.mdarc.org/repeater-systems/digital-voice Jim – K6JM

If you are info digital data modes, this presentation will also talk about new methods to get faster baud rates with existing bandwidths. The presenters will talk about development work on a new high speed TNC and the associated software. So if either digital voice or digital data modes are of interest to you, be sure to check out this presentation at Pacificon today at 10am. Jim – K6JM

(A copy is being sent to the general MDARC group, in case some are interested in digital voice but have not yet subscribed to the W6CX-DigitalVoice group.) For those attending Pacificon, a heads up about an interesting presentation on Saturday (10am Salon G/H). Prsenters have been leaders in digital voice developments for nearly a decade. Jonathan Naylor, G4KLX, who developed the idea for multi-mode digital voice (MMDVM) hotspots and repeater modems, then wrote the open-source software to make it work, has travelled from the UK to Pacificon to talk about this project. He plans to discuss some exciting new capabilities that will make it easier to work across DV modes legally. For fans of digital data modes, he will also cover a high speed TNC based on standard MMDVM hardware and new firmware which will allow for 9600 bps in a 12.5 kHz bandwidth and higher speeds (up to 38400 bps) in wider bandwidths. Jim McLaughlin, KI6ZUM, founder of ZUM Radio and contributor to the design of the original MMDVM modems and hotspot boards, will join Jonathan to talk about the improvements as well as new hardware being developed. Note that our W6CX Digital Voice repeater uses a ZUM Radio MMDVM Modem and uses the MMDVM software written by G4KLX. Learn more about MDARC’s DV repeater at https://www.mdarc.org/repeater-systems/digital-voice Jim – K6JM_._,_._,_

Hello, Is the W6CX digital repeater down? The dashboard shows "Service Not Started" for the digital modes. I don't see any information on the w6cx website. I was hoping to use during Pacificon. Thanks, Jay - KE6GLA

I am curious – for those within RF range of Mt Diablo, I notice there has been a fall-off of local RF usage of MDARC’s Digital Voice repeater on 145.0. (Dashboard is at http://dv.mdarc.org ) This repeater has traditionally had mostly D-Star mode users, though it will also repeat Fusion/YSF mode as well as DMR. But starting this year, there is been a lot less usage than in recent years. If you’ve got a D-Star radio, or a DMR radio or a Fusion radio, I am curious – Are you on the air active, but using other repeaters? Moved from using our repeater to your own hotspot? Just not on the air as much lately? Something else? Comments will really be appreciated. Jim – K6JM MDARC W6CX Digital Voice Admin

I am a newbie who had a little trouble programming my radio / no way to really verify I did it right because no one answered (due to little use of the repeater?) Are there Nets or times where more people are on so I can test my programming? Kevin Slovick Martinez Area CERT – Zone 2 Coordinator, Instructor Scouts BSA - Assistant Scoutmaster Troop 429, Merit Badge Counselor, OA Troop Advisor

I am curious – for those within RF range of Mt Diablo, I notice there has been a fall-off of local RF usage of MDARC’s Digital Voice repeater on 145.0. (Dashboard is at http://dv.mdarc.org ) This repeater has traditionally had mostly D-Star mode users, though it will also repeat Fusion/YSF mode as well as DMR. But starting this year, there is been a lot less usage than in recent years. If you’ve got a D-Star radio, or a DMR radio or a Fusion radio, I am curious – Are you on the air active, but using other repeaters? Moved from using our repeater to your own hotspot? Just not on the air as much lately? Something else? Comments will really be appreciated. Jim – K6JM MDARC W6CX Digital Voice Admin

John frequently attended Pacificon, including representing Northwest Digital Radio and later representing ARDC - https://www.ardc.net/ - which sold a number of IP addresses and uses the money to fund amateur radio-related projects and scholarships. The moving tribute below is written by Jonathan Naylor, G4KLX, author of many digital radio open source programs (including what MDARC uses on our MultiMode Digital Voice repeater). I last saw John at Pacificon in October. I remember him for so many things in our ham world, but especially for his simple suggestion to D-Star repeater owners to consider ircDDBGateway over G2/G3. John knew a lot, but both his writing and speaking were direct and concise. He did not waste words. John will be missed. Jim – K6JM From: [email protected] <[email protected]> On Behalf Of Jonathan Naylor via groups.io Sent: Sunday, April 28, 2024 5:54 AM To: [email protected] Subject: [OpenDV] John Hays K7VE SK My friend John Hays K7VE died unexpectedly on April 16th. The Facebook algorithms didn't see fit to show me this information and I had to be told days later by Jim KI6ZUM. Instead FB insisted on feeding me pages that I don't follow, rather than stuff that matters to me. Anyway I digress. I knew John pretty well. He had been an early supporter of my software, and my first dealing with him were in Autumn 2009 only a few months after the release of my first D-Star and FM repeater software, and before it was in widespread use. Many of our emails were about the poor performance of the then popular GMSK modems and what we could do about them, as well as more software related items. Once I had released the ircDDB Gateway in Autumn 2010 he moved his repeater, then based on an Icom repeater stack, over to use it rather than Icom's G2 software. The next few years would see many more emails being eschanged as I enhanced my software and he suggested changes, reported bugs, etc. John came up with the idea for StarNet which is still included with the ircDDB Gateway. I first physically met John in 2014 as I was to attend Hamvention as a guest of NWDR, which was John and Bryan Hoyer at the time. We manned a booth at the old Hara arena, and despite being used to Ham Radio in Friedrickshafen, nothing could prepare me for the onslaught of Hamvention. I had a great time, and by the time that Sunday rolled around, I was burned out! Too much of a good thing I suppose. John backed off a bit with my software with the release of the MMDVM. He wasn't happy with me supporting purely commercial protocols like DMR. It was indeed ironic that I got my first DMR radio at that very Hamvention from Jerry Wanger of CSI, and I also crossed swords with the DMR-MARC guys, which strongly encouranged me to go down the route that would become the MMDVM a little while later. Since then I would see John at various shows, and then after Covid when things had more or less returned to normal, I saw him at Ham Radio in 2022, and 2023 manning the ARDC stand. I also saw him at Pacificon in October 2023 which would turn out to be the last time I saw him. We would sit and have long conversations about development work and potential projects. I was very much looking forward to seeing him at Hamvention in a few weeks. Rest in peace John, it was an honour to be your friend. Jonathan G4KLX

Trevor WA6JAU and I got to the repeater site today and fixed the digital voice repeater’s receiver problem. The mechanism to make the receive radio power back up after power loss had broken and we were able to fix it. Jim – K6JM

Yesterday we discovered the DV repeater (145.0 +2.5) is unable to receive incoming RF transmissions. We assume this is weather/power outage related. The Dashboard at http://dv.mdarc.org/ works, connections to reflectors and talkgroups work and the transmitter works, so we can hear network transmissions. Weather permitting, we are planning a trip to the repeater site as soon as possible to assess and hopefully fix. We’ll keep you posted. Jim – K6JM

After Trevor and I visited South Peak and updated the multimode modem's firmware and the Pi's software to the latest versions, the new M17 Open Source DV mode was possible. I enabled it, but had no way to test it. The M17 developers (https://m17project.org/ ) have done a pretty complete job of developing open hardware designs and software with networking, reflectors, etc. They are currently in talks with a radio manufacturer about making and selling a radio with the new M17 DV mode. But there is no timeline I'm aware of. In the meantime, and after some ups and downs, I was able to cobble together an M17 radio using an MMDVM modem, a Pi running special software and an analog FM transceiver. Got it working now and I am able to use the W6CX DV repeater (145.0 +2.5) from here in Danville to have M17 QSOs. My first one was with someone in SoCal using an M17 reflector. I realize there won't be much local RF activity using M17 until people can purchase M17 radios, but having M17 enabled does not appear to create problems for our repeater or users of modes like D-Star. Obviously, we don't want a lot of network traffic from a little-used mode, but I am monitoring that. The underlying goal, when M17 radios become available, is to have people to talk to, both local and networked, as an incentive to get into this new mode. For DIYers, there are some interesting options for getting on M17 now. I'd be happy to give more info to any and all who might be interested. Jim - K6JM

Mathison, Interesting research you are doing. I have been tracking from a distance the work being done by the DVSwitch and AllStar developers. One thing to think about – you can actually drive people away from an open repeater if you carry too much network traffic. I suspect if we linked our analog FM repeater and other similar analog systems, we’d end up with more traffic than our uses would want. And it might work both ways, with digital-sourced traffic creating distractions for our analog system users. I do see value, though, in being able to link our various systems during an emergency. This could allow more members and other local users to help out during the emergency. But I am not sure we want to normally link in more networked traffic to either our digital or analog repeaters. Just my thoughts on this…. Jim – K6JM PS Details ---------- In configuring the current W6CX-DV repeater, which for most of the time has supported D-Star, DMR and YSF/Fusion, I carefully evaluated if a given mode should even have a default linked reflector or talkgroup. Talking to other multimode repeater admins, I found most try to have a default network collection point that is not all that busy with just enough users around to find someone for a QSO. So the DMR mode’s default talkgroup is BrandMeister 310606 – Diablo – this has local/regional users, but is not constantly carrying traffic. Of course, we allow local RF users to call up any BrandMeister talkgroup dynamically, and if they have QSOs there, it will stay connected. If there is no local RF activity on that talkgroup after a period of time, it automatically drops but the default stays active. The Fusion configuration is similar. The default reflector is YSF80280 – US-Contra-Costa. It clearly is local. It does have one interesting “feature” though. The owner of the YSF80280 reflector (Tim K6BIV) has set up a bridge (using an OpenSpot) between this YSF reflector and authentic Wires-X room 80280. You may know Yaesu limits Wires-X access and our MMDVM gateway cannot connect directly into the Wires-X network, but the OpenSpot bridges traffic between YSF80280 and Wires-X room 80280 as normal users. But the end result is mostly local traffic. MDARC’s D-Star repeater has since its inception set up reflector REF014C as its default network reflector. Admittedly, this reflector is a bit busier than the above DMR and YSF defaults, but it is still not constant. Again, we allow users to send RF commands to link to other reflectors, and sometimes a ham will link us to REF001C or REF030C, both of which are often extremely busy. During that time, D-Star pretty much takes over the DV repeater. But when there is no local RF activity on the D-Star mode, we automatically drop the other link and link back to REF014C. So far, this seems to be working out. Right now, we are conducting some experiments and have enabled both P25 and the new M17 modes. I set up some temporary default network connections for each mode, but it looks to me like they are too busy. So I have dropped the M17 default and will keep reviewing the P25 default’s activity. The goal, again, is to provide ways for our local RF users to find people to talk to, but to do it in a way that does not allow any mode to take over the DV repeater or to create traffic distractions that might drive away our local RF users.