MMDVM.jpg
Homebrew MMDVM
Vendor Homebrew
Model MMDVM
Firmware unspecified
Website https://github.com/g4klx/
Modes
DMR Yes D-Star Yes
Tetra No P25 Yes
Terminal support
Group call Yes Voice call Yes
SMS Yes IP No
GPS Yes ARS/RRS Yes
DMR Protocol support
Talker Alias Yes In call GPS Yes



G4KLX MMDVM

MMDVM.jpg

Blog: http://www.mmdvm.com/
Group: https://groups.yahoo.com/groups/mmdvm/
Sources: https://github.com/g4klx/

MMDVM Shields

Configuration

[General]
Callsign=R1ABC
Timeout=180
Duplex=1
#ModeHang=10
RFModeHang=10
NetModeHang=4
Display=Nextion
Daemon=0

[Info]
RXFrequency=434000000
TXFrequency=439000000
Power=1
Latitude=51.0
Longitude=39.0
Height=10 (par rapport au sol)
Location=JN25FF
Description=Multi-Mode Repeater
URL=www.dstar.su

[Log]
# Logging levels, 0=No logging
DisplayLevel=1
FileLevel=1
FilePath=.
FileRoot=MMDVM

[CW Id]
Enable=1
Time=10

[DMR Id Lookup]
File=DMRIds.dat
Time=24

[DMR]
Enable=1
Id=250199
ColorCode=1

[DMR Network]
Enable=1
Address=master.dstar.su
Port=62031
Password=passw0rd
Debug=1

Dashboard for MMDVMHost

Recommend for Motorola radio

Recommend radios for homebrew repeaters

Being tested on Warning.png
Unknown Question mark.png
Supported Works
Unsupported Cross.png

The following radios have been approved to work as homebrew repeaters HF frontends:

Known to work well for DStar, all radios should also work fine for DMR (otherwise please edit this list).
Motorola
Model RX TX Notes
CDM1250 Works Works Excellent TX & RX on all modes
CDM1550LS Works Works Excellent TX & RX on all modes
CM140 / 160 / 340 Works Works EM200(CM140) Very low BER at Rx (SV4QXF) Tx works (SQ6POG)
EM400 Works Works -XE1HAX- TX / RX VHF good work with (SP8NTH) v0.04
GM1200 Works Works D-Star,DMR,C4FM,P25 - TX using PIN 24 ACC, RX only via PIN 5 of internal CS(Option)connector [DISC OUT]! PIN 25 ACC NOT WORKING! OK2IT see #GM1200 DISC out
GM300/Maxtrac Works Works N3FE
GM340 / GM360 / GM380 Works Works
GM350 / GM950 Works Works PCB Mod. VHF RX TX work (SQ9MYX)
GM600 Works TX UHF Work (SQ9MYX)
GM600 (reprogrammed to GM950) Works Works TX / RX UHF Work excellent on SR8UWD (SP8NTH)
GR1225 Works Works N9KRG
M1225 Cross.png Works Receive causing unstable BER at Rx 5~10% (VE2RI)
MCS2000 Warning.png Works Unstable BER at Rx 1,2~5% (SV4QXF)
MSF5000 Works Works X74CXB7106AT Works well for DMR; C4FM and Dstar not tested (YO2LLQ)
MTR2000 Works Works Very well for DMR and DStar - C4FM not tested (IZ5IGB)
Pro 3100 Works Cross.png At least with 4 used radios I tested, Tx is center frequency is unstable.
Pro 5100 Works Works Excellent TX & RX on all modes
R100 Repeater Works Works N1XBM
VRM650 (MCS2000) Works Works K0XM/W0NQX
VRM850 (MCS2000) Works Works N4IRS See VRM.zip in the Yahoo MMDVM files/Hardware area
Kenwood
Model RX TX Notes
TM-V71A/E Works TX Has a timeout of Max 10 min and its impossible to change this.
THF7E Works Cross.png (CT1HDC) (IW9GRL - Good reception but unstable BER 0.3~5% )
TKR-750 Works Works VK4JLM Tested DSTAR and DMR, interfaced via rear DB25
TKR-830 Works Works N4IRS Good receive and transmit Tested DMR only Needs internal jumper Doc to follow
TKR-850 Works Works VK4JLM Tested DSTAR and DMR, interfaced via rear DB25
YAESU
Model RX TX Notes
DR-1X Works Works TX/RX audio is excellent, DMR/D-Star Tested (W2GLD)
FT-7900 Works Works Check/fine tune frequency for DMR use. TX will sag with temperature, set it 2-300 Hz above. (LA1PHA/LA1FTA)
FT-7800 Works Works Check/fine tune frequency for DMR use. TX will sag with temperature, set it 2-300 Hz above. (LA1PHA/LA1FTA)
FT-8800 Works Works
FT-100D Works (CT1HDC)
FT-8900 Works Works (DMR CT1JIB)
FT-817 Works Works RX also looks to work (PD0ZRY)
FT-857 Works Works DMR/DSTAR works very well as DMO mode, BER stable around 1-2% ( IW9HFS )
FTM100/DE Works Works PinOut MMDVM-->MINIDIN 10PIN : 1=DIN6, 2=DIN4, 3=DIN2, 5=DIN1, 6=DIN3 - IZ0RIN
HYT
Model RX TX Notes
TM-600U Works Cross.png RX work perfect. TX not work! (SQ9MYX)
Tait
Model RX TX Notes
T800 Series I Works Works For TX bypass/cut off low pass filter stage in audio processor, provide new DC bias at half rail into buffer, inject data at buffer. For RX tap at or near discriminator. (VK2AMV)
T800 Series II Works Works N4IRS See Tait Series II data modifications.zip in the Yahoo MMDVM files/Hardware area. Additional note by VK2AMV, Be very careful of DC leakage into buffer effecting Op Amp DC bias. I had huge problems with less than a Microamp of DC leakage through a faulty DC blocking capacitor before I discovered it. DMR works great with T800 SII.
T2020 Series II Works Works DMR Works, More info (F4GIX)
Tm8100 Works Works DMR/DSTAR works well as DMO mode,DMR Delay 83 , More info (F4GIX)
Tm8250 Works Works DMR/DSTAR works well as DMO mode,DMR Delay 83 , More info (F4GIX)
TB7100 Works Works works with internal connections to RX/TX DF2ET, see https://www.florian-wolters.de/blog/2017/04/02/interfacing-tait-tb7100-and-mmdvm/
ICOM
Model RX TX Notes
IC E880 Works Works DMR/DSTAR works well as DMO mode (IK5XMK)
IC-V200TRE Works Works DMR/DSTAR works, DMR Delay=40, More info (F4GIX)
Harris
Model RX TX Notes
MASTR III Works Works DMR works well (NF0T)

Station works well for DMR. Other modes pending testing.

GM1200 DISC out

Internal CS option connector of a Motorola GM1200 with discriminator on pin 5. Complete pinout at http://www.batlabs.com/gm900.html

GM1200 disc.png