Monday, April 29, 2024

P25 TalkGroups Activity as of 29th April, 2024

I showing some of the activity over past week,

TG10100 WW  (M1GEO  UK), - it has a new Dashboard URL  - it has activity

TG10101   WW - some activity

TG10102    WW TAC2  - some activity

TG10103     WW TAC3  - unknown

TG10200 NA TAC



TG10201 NA TAC1 - plenty activity

TG10202 NA TAC2  - some activity

TG10203 NA TAC3 unknown

TG10400 Pacific P25



TG10401  Pacific TAC1/WICEN  - nothing, but it is a WICEN channel

TG10402  Pacific TAC2 - used by stations in China

TG10403 Pacific TAC3 - no response could be gone

TG10700 plenty of activity, a good dozen stations on here.

TG50525  plenty of activity, as it linked to VK3 Allstar network, multimode gateway

Dashboard URL's :

TG10100 - TG10100/Worldwide P25Reflector-Dashboard (m1geo.com)

TG10200 - - P25 North America Reflector (dvswitch.org)

TG10201 - - P25Reflector-Dashboard by DG9VH (dvswitch.org)

TG10400 - TG10400 PACIFIC P25-NXDN Bridge - VK2HK

TG10401 - TG10401 PACIFIC TAC1 (WICEN) P25 - VK2HK

TG10700 - AU P25 NSW - YSFReflector-Dashboard by DG9VH (gustotech.net)

TG50525 -  TG50525 P25 Gateway-Bridge - VK2HK & TG50525 NXDN-DMR-P25-YSF - VK2HK


Friday, April 26, 2024

MMDVM HS_HAT Modem Firmware Release Notes

 I haven't found any release notes yet for v1.6.0 or 1.6.1, but here are the recent previous releases

CA6JAU Release notes for version 1.5.2 :

  • Support for BridgeCom SkyBridge HS
  • Fix pictures transmission in YSF (Manuel EA7EE)
  • Add "." to CWId (Andy MW0MWZ)
  • Support for OrangePi firmware installation using generic_duplex_gpio_fw.bin (Sergei)
  • Support for ZUMspot Dualband RPi and ZUMspot Duplex RPi (Abad Vera)
  • Old ZUMspot Duplex USB is now Generic Duplex USB
  • Serial Repeater RX optimization (Shawn Chain)
  • UDID support (Shawn Chain)
  • UDIO optional
  • Beta fw support for installer scripts


This is a beta release 1.5.1b, for beta testing:

  • Support for new boards: ZUMspot Dualband RPi and ZUMspot Duplex RPi (Abad Vera)
  • Old ZUMspot Duplex USB is now Generic Duplex USB
  • Serial Repeater RX optimization (Shawn Chain)
  • UDID support (Shawn Chain)
  • UDIO optional
  • Beta fw support for installer scripts
  • Fix bugs

Release notes for version 1.4.17 :

  • Additional "sleep" for flashing (Florian DF2ET)
  • Update NanoDV (Tom BG4TGO)
  • Enabling Serial Repeater RX (Garry WD0DUD)
  • Add D2RG MMDVM_HS support

Release notes for version 1.4.16 :

  • Add support for POCSAG calibration mode by Florian DF2ET (latest MMDVMCal)
  • Add I2C host communication support (custom firmware compilation)

for the rest of the release notes go to here :

Upgrading MMDVM board firmware from Pi-Star

 I just recently completed the exercise of upgrading my Pi-Star units with the Dashboard upgrade to 20240309 (9th March, 2024), and the Pi-Star firmware to 1.4.8

I noticed my MMDVM modems were still on 1.4.17, I looked at CA6JAU's GitHub and could see latest version he has was 1.5.2    GitHub - juribeparada/MMDVM_HS: MMDVM HotSpot: firmware for ZUMspot or MMDVM_HS based boards (D-Star, DMR, YSF, P25, NXDN and POCSAG)

but when I actually used the  Pi-Star > Configuration > Expert  > FW function to upgrade firmware, I discovered it was deploying version 1.6.1 for MMDVM_HS_HAT and same version for MMDVM_HS_DUAL_HAT

for my MMDVM HS_HAT modems (JumboSpot and the S56AL clone (Red)) were all same firmware that I upgraded manually a few years back. Below are  extracts from Pi-Star Livelogs, before and after upgrade :

MMDVM protocol version: 1, description: MMDVM_HS_Hat-v1.4.17 20190529 14.7456MHz ADF7021 FW by CA6JAU GitID #cc451c4

MMDVM protocol version: 1, description: MMDVM_HS_Hat-v1.6.1 20230526 14.7456MHz ADF7021 FW by CA6JAU GitID #7ff74ed

for my MMDVM Dual HAT modem, extracts from the Pi-Star Livelogs, before and after upgrade :

MMDVM protocol version: 1, description: MMDVM_HS_Dual_Hat-v1.4.17 20190529 14.7456MHz dual ADF7021 FW by CA6JAU GitID #cc451c4

MMDVM protocol version: 1, description: MMDVM_HS_Dual_Hat-v1.6.1 20230526 14.7456MHz dual ADF7021 FW by CA6JAU GitID #7ff74ed.

I ran into issue when doing the MMDVM_HS_DUAL_HAT modem board, the firmware upgrade stopped with an error, 



So I did a google search to see what to do about it, a few forums mentioned, but explanations were not easily understood, but eventually found the error details I needed, which was basically solder a JP1 solder pad  and solder a wire link into a header position, then I was able to complete the modem firmware task from Pi-Star menus, Configuration > Expert > FW.


From another forum, I learnt some more commandline  commands from Configuration > Expert > SSH Terminal, not so much to resolve, but to interrogate the MMDVM modem, which confirmed a few things.

For the type of MMDVM modems I am referring to above, then here they are:

JumboSpot :



S56AL clone (red coloured) :


MMDVM HS_DUAL_HAT modem :


same modem with OLED display fitted :


and below is the information to unlock the DUAL_HAT modem for upgrading



once the upgrade is complete, you can cut the link and remove solder blob from JP1 pads.

Here are Various Links to Upgrade firmware error discussions :
SOLVED - mmdvm single and duplex firmware update problem - forum.pistar.uk
Zumspot Libre Not upgrading - forum.pistar.uk

Updating MMDVM 1.52 to 1.61 : r/HamRadio (reddit.com)

PiStar MMDVM Upgrade Fix (m7spi.co.uk)    M7SPI covers the SSH commands you can use.

Make sure you upgrade the Dashboard version and Pi-Star software to get the latest Admin functionality.

Thursday, April 25, 2024

Data Rate on Brandmeister AU DMR network from OpenSpot hotspot

 just saving a screenshot of Received Data rate from my OpenSpot1 on the Brandmeister AU DMR network,

approx 3.1 kbytes/sec



Wednesday, April 24, 2024

Pi-Star DMR Configuration Options for Static TalkGroups

 I was playing around with my Pi-Star configuration, with defining Static TalkGroups under DMR mode, I had added 11 x TG's in the TS1, and found the last couple were not there, meaning that I didnt see or hear any activity in the Activity (heard list) on the Pi-Star Dashboard for two of the 11 defined static TG's.  I tested with another radio, to test each TG defined, to find that TS1_10 and TS1_11 dont work, I trimmed the string back to 9 and it all working.

Did some Google searches to find that it is true,  each TS can have maximum of 9 x static talkgroups.

DMR+ Dynamic Talk Groups - forum.pistar.uk

In the Pi-Star Forum it says  you can have 9 x static TG's defined under TS1 and 9x static TG's defined under TS2.



Monday, April 22, 2024

DMR Node count for VK & ZL

 I have taken stat count of nodes in the past, this time I have written it down, but a couple years ago,  I found the numbers were much the same for VK-DMR versus Brandmeister nodes, in terms of VK activity, what I recall was around the 240-250 mark and looks much the same again today.

here is the count as of today, 22nd April 2024 for VK and ZL

VK-DMR :  Hotspots 242, Repeaters 56, Total=298.

BM  (VK): Hotspots  269, Repeaters 11, Total=280

ZL DMR+ : Hotspots Total=55 

BM (ZL): Hotspots Total=32

NOTE in ZL, repeaters don't have distinctive callsigns like VK does.

This is not a comparison of what is best, each type of DMR network does a different job, they are configured and operate differently, it is all about experimenting and learning, regardless of using one or both DMR modes and same goes for experimenting with other digital modes within the hobby.





Sunday, April 21, 2024

DMR Nets for VK & ZL regions

 here are some Nets to listen to on DMR in VK/ZL:

VK3XEM's Welfare Net, Mon to Fri 10am AEST, runs on the VK3 AllStar Network, but accessible from Brandmeister DMR TG 50525, also P25 TG 50525 and I think also on NXDN TG50525.

VK3KK Round Table Net, Wed 8pm AEST, same network as above, on the VK3 AllStar Network, but accessible from Brandmeister DMR TG 50525, also P25 TG 50525 and I think also on NXDN TG50525.

ZL Digital Net, Friday night, 8pm NZT, 6pm AEST, on  VKDMR TG 530 ZL Call Freq

Westlakes  Net, VK2ATZ  Sunday morning from 8.00am AEST on VKDMR TG3802 linked to Brandmeister TG5052

Westlakes Broadcast, Sunday morning 9.00am AEST on VKDMR TG3802 linked to Brandmeister TG5052

VK7 WIA / REAST Broadcast, Sunday morning 9.30am AEST on VKDMR TG5

VK-DMR Net, Tuesdays 8pm AEST on VK-DMR TG5




M17 Project & WSPD - next generation digital voice

 M17 Project 

WPSD is a next-generation, digital voice software and dashboard suite by W0CHP, which includes native M17 support; as well as programs to update your modem firmware to the latest versions, which support M17

Software | M17 Project

The WPSD Project - W0CHP.radio


Friday, April 19, 2024

Pi-Star MMDVM Upgrades

 I just poking around doing some TalkGroup config changes today on my DMR Pi-Star MMDVM node that I use for VK DMR network, I was prompted with an upgrade notice, so I proceeded to upgrade that DMR node and I also upgraded my P25 Pi-Star Node while I was a it.

I been running version 4.1.6 for probably 2 years now since it  was release in November 2021

I noticed during upgrade it did two steps, upgrade to 4.1.7, then onto 4.1.8

I then thought it be good idea to check the Release Notes to see what it is about, 

here is extract off the Pi-Star website, no new functionality, its underlying infrastructure changes, required to allow for new functionality to be added in future, such as M17 Support. I still hanging out for some P25 Gateway functionality. (fingers crossed)

Pi-Star Downloads - pistar.uk

current Release Notes, as of 19th April, 2024

16-Feb-2024 **Version 4.2.1** - Available for Download or Upgrade.
    This version addresses some issues with the nextiondriver.service
        unit file, and with NextionDriver in general. I had
        not actually intended to include the unit file with
        4.2.0, but it's there, so to clean that up, we need
        a minor upgrade.
    While working on NextionDriver, I also noticed an issue with
        4.2.0 not always syncing the time correctly.
        This update also addresses NTP issues in the 4.2.0
        build.
    Additional disk cleaning is done in the release image,
        reducing the image size slightly.

05-Feb-2024 **Version 4.2.0** - Available for Download.
    This release upgrades the base OS from Buster to Bullseye.
        Binaries / Dashboard are all the same as 4.1.x chain.
        There will be some of you that need (for some reason)
        to use the older binary set, if that happens to be
        the case, check out this post on the forum:
        https://forum.pistar.uk/viewtopic.php?t=4806
    On the NanoPi / OrangePi and Odroid releases, the kernels
        are now updated as part of normal OS updates.
    Along with the "Legacy" branch should you need them, there
        is also now a "Testing" that is going to keep pace
        with the upstream releases, so now any of you can
        take part in the testing of new packages.
    If you have a 4.2.0 Beta image installed, you can keep using
        it so long as it's working OK for you, the last bug
        that has been crushed relates to Wi-Fi on the
        Raspberry Pi Zero 2W, it would drop the Wi-Fi after
        a few hours, if you are seeing that, re-flash with the
        current release.

21-Jan-2024 **Version 4.1.8** - Available for Download.
    This it is not possible to in-place upgrade and get the changes
        that matter in this download, the /boot volume has
        been 64MB in size for many years, and before there
        were too many versions of Raspberry Pi boards, this
        was fine. The ever growing number of kernels and
        systems supported by Raspbian means that 64MB is just
        not large enough any more.
    This change to the size of /boot (up to 256MB) also requires
        that I lift the minimum uSD card size to 4GB (it has
        been 2G since Pi-Star launched 10 years ago). This is
        the start of a lot of work to take Pi-Star past some
        of the baked in decisions from years ago that have made
        upgrades painful.
    If you have a working system, upgrade to 4.1.8, but don't rush
        to re-image, 4.2.0 is on the horizon, bumping the OS
        to bullseye, and paving the way for what comes next.
    Those of you waiting for bookworm, well you need to wait just
        a little bit longer, we need a stable release on
        bullseye out, before we get too radical.
    New binaries are coming soon, I wanted to get some of the long
        standing issues cured before pushing those, I will
        re-spin the images once they land.

18-Jan-2024 **Version 4.1.8** - Available for Upgrade.
    Bringing in M17 components, it's not configurable on the dash
        yet, but that is coming soon. First bring in the parts
        to make the service work, and pull in audio files etc.
    More work is required, but the basics of the dash changes are
        done, still to-do update config page and the repeater
        info panel. Thos should get pulled in over the next
        few days.

05-Jan-2024 **Version 4.1.7** - Available for download and upgrade.
    It has been a while since I pushed a full update. Mostly that
        has been owing the to the very stable nature of the
        current build, however, it was getting to have some
        issues creep in.
    What is new? - Actually nothing new, this update us just fixing
        the expired keys for the apt repos. This caused the OS
        and other packages not to get some updates.
        Upgrade to 4.1.7 from the dashboard (it's faster) and
        the new keys get installed, allowing all of the update
        goodness to function once more.
    I know this is not terribly exciting, but there are other things
        being worked on that are more exciting, more news on that
        later.


NOTE: as I mentioned back in October, 2022, to run P25 mode, you have to use the old Kernel 4.19.97+  as the P25 Mode doesn't like the later 5.10.11+ kernel.
To use the later versions of DMR (ie. 4.1.6 and later) you need to use a later version kernel, 5.10.11+ or later, otherwise it starts up and looks fine, but will not connect to a Master, e.g. DMR+.