View source for Homebrew/MMDVM ← Homebrew/MMDVM

{{Repeater
|vendor=Homebrew
|model=MMDVM
|site=https://github.com/g4klx/
|has_dmr=Yes
|has_dstar=Yes
|has_tetra=No
|has_p25=Yes
|has_group=Yes
|has_voice=Yes
|has_sms=Yes
|has_ip=Yes
|has_gps=Yes
|has_ars=Yes
|has_ta=Yes
|has_igps=Yes
|image=Index.jpg
}}
== G4KLX MMDVM ==

[[File:MMDVM.jpg|600px]] 
<br>
[[File:index.jpg|300px]]
[[File:Mmdvm by UB3AIA.jpg|300px]] 
<br>
[[File:Self-made.jpg|300px]]
[[File:MMDVM-by-RA4NHY.jpg|300px]]  
<br>
[[File:Mmdvm_hs_dual_hat.jpg|300px]]
[[File:MMDVM_HS_HAT_DUPLEX.jpg|170px]]
<br>
=== Links ===
Blog: http://www.mmdvm.com/<br>
Group: https://groups.yahoo.com/groups/mmdvm/<br>
Sources: https://github.com/g4klx/ <br>
https://github.com/phl0/MMDVM_HS_Dual_Hat<br>

=== MMDVM Shields ===

* SP8NTH - http://www.sp8nth.ampr.org/print.php?type=N&item_id=126
* KI6ZUM - https://www.google.fr/search?q=KI6ZUM&client=firefox-b&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwj3lZXyw-PTAhXIPRoKHWDEAYYQsAQIMQ&biw=1440&bih=742#imgrc=BWl2Dg00svvNqM:
* IZ5IGB Low-Cost ZUM Compatible - https://www.grupporadiofirenze.net/wp-content/uploads/2017/11/Low-Cost-ZUM-for-Arduino-2-V.-1.4-By-IZ5IGB.pdf
* Self made shield by DSTAR.SU & RADIOCULT.SU group - https://drive.google.com/file/d/0B_UNZTdPtyZUUjN2d2llV0RtNTQ/view
* INADVM - http://inadvm.com/inadvm/inadvm-rev2-index.html
* STM32_DVM - http://www.repeater-builder.com/products/stm32-dvm.html
* MMDVM_HS - https://github.com/juribeparada/MMDVM_HS
* MMDVM_HS_Dual - https://github.com/phl0/MMDVM_HS_Dual_Hat
* MMDVM_pog - https://github.com/wojciechk8/MMDVM_pog

=== Configuration ===

<pre>
[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
</pre>

=== '''Dashboard for MMDVMHost''' ===
* Source code https://github.com/dg9vh/MMDVMHost-Dashboard

== Recommend radios for homebrew repeaters ==
{| class="wikitable"
!Being tested on
|{{development mark}}
|-
!Unknown
|{{question mark}}
|-
!Supported
|{{check mark}}
|-
!Unsupported
|{{cross mark}}
|}

Known to work well for DStar, all radios should also work fine for DMR (otherwise please edit this list).
The following radios have been approved to work as homebrew repeaters HF frontends:

{| class="wikitable"
!colspan="4"|Motorola
|-
!Model
!RX
!TX
!Notes
|-

| CDM750 / 1250 / 1550LS
|{{check mark}}
|{{check mark}}
|Excellent TX & RX on all modes 
|-

| CM140 / 160 / 340
|{{check mark}}
|{{check mark}}
|EM200(CM140) Very low BER at Rx (SV4QXF) Tx works (SQ6POG)
|-

| EM400
|{{check mark}}
|{{check mark}}
| -XE1HAX- TX / RX VHF good work with (SP8NTH) v0.04
|-

| GM1200
|{{check mark}}
|{{check mark}}
| 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
|{{check mark}}
|{{check mark}}
|Very Simple setup
|-

| GM338
|{{check mark}}
|{{check mark}}
|DMR & C4FM tested
|-

| GM340 / GM360 / GM380
|{{check mark}}
|{{check mark}}
|
|-

| GM350 / GM950
|{{check mark}}
|{{check mark}}
|PCB Mod. VHF RX TX work (SQ9MYX), UHF RX TX work with 128ch variant and PCB mod (2E0TSP)
|-

| GM600
|
|{{check mark}}
| TX UHF Work (SQ9MYX)
|-

| GM600 (reprogrammed to GM950)
|{{check mark}}
|{{check mark}}
| TX / RX UHF Work excellent on SR8UWD (SP8NTH) 
|-

| GR1225
|{{check mark}}
|{{check mark}}
|N9KRG
|-

| GTX (900MHz)
|{{check mark}}
|{{cross mark}}
| My Motorola XPR 6580 was unable to decode anything while DSD+ was. Frequency was not center stable and no amount of adjustments helped which may be the issue. (KD9KOO)
|-

| M1225
|{{cross mark}}
|{{check mark}}
| Receive causing unstable BER at Rx 5~10% (VE2RI)
|-

| MCS2000
|{{development mark}}
|{{check mark}}
| Unstable BER at Rx 1,2~5% (SV4QXF)
|-

| MSF5000
|{{check mark}}
|{{check mark}}
|X74CXB7106AT Works well for DMR; C4FM and Dstar not tested (YO2LLQ)
|-

| MTR2000
|{{check mark}}
|{{check mark}}
|Very well for DMR and DStar - C4FM not tested (IZ5IGB) - NB: a 10uF 16v electrolytic needed in series with the Rx audio line (+ve towards MTR2000) to block DC bias. (M0DMP)

|-

| PM400
|{{check mark}}
|{{check mark}}
| TXInvert=On, RXInvert=Off ; Tested well with D-Star, DMR and C4FM. (N0RJC)
|-

| Pro 3100
|{{check mark}}
|{{cross mark}}
| At least with 4 used radios I tested, Tx is center frequency is unstable.
|-

| Pro 5100
|{{check mark}}
|{{check mark}}
| Excellent TX & RX on all modes
|-


| VRM650 (MCS2000)
|{{check mark}}
|{{check mark}}
|K0XM/W0NQX
|-

| VRM850 (MCS2000)
|{{check mark}}
|{{check mark}}
|N4IRS See VRM.zip in the Yahoo MMDVM files/Hardware area
|-

| XPR 4580
|{{check mark}}
|{{cross mark}}
| My Motorola XPR 6580 was unable to decode anything and neither was DSD+. Frequency was not center stable and no amount of adjustments helped which may be the issue. (KD9KOO)
|-

!colspan="4"|Kenwood
|-
!Model
!RX
!TX
!Notes
|-

| TM-V71A/E
|
| {{check mark}}
| TX Has a timeout of Max 10 min and its impossible to change this.
|-

| TH-F7E
| {{check mark}}
| {{cross mark}}
| (CT1HDC) (IW9GRL - Good reception but unstable BER 0.3~5% )
|-

| TKR-750
| {{check mark}}
| {{check mark}}
| VK4JLM Tested DSTAR and DMR, interfaced via rear DB25
|-

| TKR-830
| {{check mark}}
| {{check mark}}
| N4IRS Good receive and transmit Tested DMR only Needs internal jumper Doc to follow 
|-

| TKR-850
| {{check mark}}
| {{check mark}}
| VK4JLM Tested DSTAR and DMR, interfaced via rear DB25
|-

| TK-8180
| {{check mark}}
| {{check mark}}
| KC9FQT Works great, used for the WF1RES repeater, used with rear DB25 port
|-

| TM-D710
| {{check mark}}
| {{check mark}}
| Tested to work with DMR using STM32-DVM v3 RPi hat. From the radio, must set radio to use EXT. DATA SPEED = 9600 bps and use 6-pin Mini DIN cable as specified by RepeaterBuilder.org (pin 4 "PR9" is audio output before discriminator). From MMDVM set TXInvert=0 and RXInvert=1. Note that TX audio gain must be set quite high for DMR to operate properly. (OH3ERV 2018-09-16)
|-

| TM-D710G
| {{check mark}}
| {{check mark}}
| W4DHW -  Currently being used on D-Star, DMR and P25 as higher power hotspot with STM32_DVM board.  Works great!  Set A-band or B-band to 9600 baud (external)
|-

!colspan="4"|YAESU
|-
!Model
!RX
!TX
!Notes
|-

| DR-1X
|  {{check mark}}
|  {{check mark}}
|  TX/RX audio is excellent, DMR/D-Star Tested (W2GLD)
|-

| FT-7900
| {{check mark}}
| {{check mark}}
| Check/fine tune frequency for DMR use. TX will sag with temperature, set it 2-300 Hz above. (LA1PHA/LA1FTA)
|-

| FT-7800
|  {{check mark}}
|  {{check mark}}
|  Check/fine tune frequency for DMR use. TX will sag with temperature, set it 2-300 Hz above (LA1PHA/LA1FTA).  Could not get DMR BER consistently less than 3-5% due to frequency instability.  OK for YSF with BER ~1% (KE7KUS).
|-

| FT-8800
|  {{check mark}}
|  {{check mark}}
|  
|-

| FT-100D
|
|  {{check mark}}
|  (CT1HDC)
|-

|FTM-350
|{{check mark}}
|
|Radio does not work on transmitting DMR (What I tested it on), with any combination of settings. The FTM-350 will receive DMR OK. (AE0CP)
|-


|FT-8900 
| {{check mark}}
| {{check mark}}
| (DMR CT1JIB)
|-

|FT-817
| {{check mark}}
| {{check mark}}
| RX also looks to work (PD0ZRY)
|-

|FT-857
| {{check mark}}
| {{check mark}}
| DMR/DSTAR works very well as DMO mode, BER stable around 1-2% ( IW9HFS )
|-

|FTM100/DE
|{{check mark}}
|{{check mark}}
|PinOut MMDVM-->MINIDIN 10PIN : 1=DIN6, 2=DIN4, 3=DIN2, 5=DIN1, 6=DIN3 - IZ0RIN
|-

|FT-1907R/E
|{{check mark}}
|{{check mark}}
| Works great on TX, works perfect on RX. You must open the transceiver and use the discriminator audio for tx/rx. 0% stable BER both ways. Although transceiver suffers from overheating if used for TX as well(in case of hotspot), due to lack of a blower. For further info contact me via email.(5B4AMD)
|-

!colspan="4"|Vertex
|-
|VXR-9000 UHF
|{{check mark}}
|{{check mark}}
| DMR/DSTAR works very well as DMO mode, TXDelay=45, DMRDelay=27, TXInvert=1, RXInvert=0    (F4GIX) 
|-
!colspan="4"|HYT
|-
!Model
!RX
!TX
!Notes
|-

| TM-600U
| {{check mark}}
| {{cross mark}}
| RX work perfect. TX not work! (SQ9MYX)
|-

!colspan="4"|Tait
|-
!Model
!RX
!TX
!Notes
|-

| T800 Series I
| {{check mark}}
| {{check mark}}
| 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
| {{check mark}}
| {{check mark}}
| 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
| {{check mark}}
| {{check mark}}
|  DMR Works, More info (F4GIX)
|-

| Tm8100
| {{check mark}}
| {{check mark}}
|  DMR/DSTAR works well as DMO mode,DMR Delay  83 , More info (F4GIX)
|-

| Tm8250
| {{check mark}}
| {{check mark}}
|  DMR/DSTAR works well as DMO mode,DMR Delay 83 ,  More info (F4GIX)
|-

| TB7100
| {{check mark}}
| {{check mark}}
| works with internal connections to RX/TX DF2ET, see https://www.florian-wolters.de/blog/2017/04/02/interfacing-tait-tb7100-and-mmdvm/
|-
!colspan="4"|TEKK
|-
!Model
!RX
!TX
!Notes
|-
| KS-960
| {{check mark}}
| {{check mark}}
| Needs crystals. 2W output. (DB9CR)
|-
!colspan="4"|ICOM
|-
!Model
!RX
!TX
!Notes

|-
| IC E880
|  {{check mark}}
|  {{check mark}}
|  DMR/DSTAR works well as DMO mode (IK5XMK)
|-

| IC-V200TRE
|  {{check mark}}
|  {{check mark}}
|  DMR/DSTAR works, DMR Delay=40, More info (F4GIX)

|-
| IC-E2820 
|  {{check mark}}
|  {{check mark}}
|  DMR works very well as DMO mode  (SY1BRU)
|-

|-
| IC-7000 
|  {{check mark}}
|  {{check mark}}
|  DMR/D-Star works very well as DMO mode (SV6NOB) https://www.youtube.com/watch?v=NevkCvcxZYo
|-

|-
| IC-2725 
|  {{check mark}}
|  {{check mark}}
|  DMR works very well as DMO mode (SY3BOQ)
|-
|-
| IC-F5061
|  {{development mark}}
|  {{development mark}}
|  Work in Progress: TXINVERT=On, RXINVERT=On. On radio main board, need to bridge coffee bean "F" to closed. On DSUB-25 accessory connector: GND = Pin 7, Tx_Audio = Pin 8, RX_Audio = Pin 9 , PTT = Pin 19, COS = 17. D-Star BER high, 9% RX. (N0RJC)
|-

!colspan="4"|Harris
|-
!Model
!RX
!TX
!Notes
|-

| MASTR III
|  {{check mark}}
|  {{check mark}}
|  DMR works well (NF0T)
|-

!colspan="4"|Maxon
|-
!Model
!RX
!TX
!Notes
|-

| SM-6450U
| {{check mark}}
| {{cross mark}}
| RX works great / TX unstable(YO6NAM)
|-

!colspan="4"|Bridgecom
|-
!Model
!RX
!TX
!Notes
|-

| BCR-50x
|  {{check mark}}
|  {{check mark}}
| All modes work well (KØXM)
|-

!colspan="4"|TYT 
|-
!Model
!RX
!TX
!Notes
|-

| TH9000D
|  {{check mark}}
|  {{cross mark}}
| RX DMR work perfect. TX not work!(F4GIX). Note from KD9KOO, these radios simply do not work as a transmit radio for digital modes. The radio appears to be doing some filtering/modification of the TX audio to the point where a digital radio can't decode it.
|-


|}

== 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

[[File:GM1200_disc.png|500px]]
Homebrew MMDVM

Vendor	Homebrew
Model	MMDVM
Firmware	unspecified
Website	https://github.com/g4klx/
Modes
DMR		D-Star
Tetra		P25
Terminal support
Group call		Voice call
SMS		IP
GPS		ARS/RRS
DMR Protocol support
Talker Alias		In call GPS
Motorola
Model	RX	TX	Notes
CDM750 / 1250 / 1550LS			Excellent TX & RX on all modes
CM140 / 160 / 340			EM200(CM140) Very low BER at Rx (SV4QXF) Tx works (SQ6POG)
EM400			-XE1HAX- TX / RX VHF good work with (SP8NTH) v0.04
GM1200			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			Very Simple setup
GM338			DMR & C4FM tested
GM340 / GM360 / GM380
GM350 / GM950			PCB Mod. VHF RX TX work (SQ9MYX), UHF RX TX work with 128ch variant and PCB mod (2E0TSP)
GM600			TX UHF Work (SQ9MYX)
GM600 (reprogrammed to GM950)			TX / RX UHF Work excellent on SR8UWD (SP8NTH)
GR1225			N9KRG
GTX (900MHz)			My Motorola XPR 6580 was unable to decode anything while DSD+ was. Frequency was not center stable and no amount of adjustments helped which may be the issue. (KD9KOO)
M1225			Receive causing unstable BER at Rx 5~10% (VE2RI)
MCS2000			Unstable BER at Rx 1,2~5% (SV4QXF)
MSF5000			X74CXB7106AT Works well for DMR; C4FM and Dstar not tested (YO2LLQ)
MTR2000			Very well for DMR and DStar - C4FM not tested (IZ5IGB) - NB: a 10uF 16v electrolytic needed in series with the Rx audio line (+ve towards MTR2000) to block DC bias. (M0DMP)
PM400			TXInvert=On, RXInvert=Off ; Tested well with D-Star, DMR and C4FM. (N0RJC)
Pro 3100			At least with 4 used radios I tested, Tx is center frequency is unstable.
Pro 5100			Excellent TX & RX on all modes
VRM650 (MCS2000)			K0XM/W0NQX
VRM850 (MCS2000)			N4IRS See VRM.zip in the Yahoo MMDVM files/Hardware area
XPR 4580			My Motorola XPR 6580 was unable to decode anything and neither was DSD+. Frequency was not center stable and no amount of adjustments helped which may be the issue. (KD9KOO)
Kenwood
Model	RX	TX	Notes
TM-V71A/E			TX Has a timeout of Max 10 min and its impossible to change this.
TH-F7E			(CT1HDC) (IW9GRL - Good reception but unstable BER 0.3~5% )
TKR-750			VK4JLM Tested DSTAR and DMR, interfaced via rear DB25
TKR-830			N4IRS Good receive and transmit Tested DMR only Needs internal jumper Doc to follow
TKR-850			VK4JLM Tested DSTAR and DMR, interfaced via rear DB25
TK-8180			KC9FQT Works great, used for the WF1RES repeater, used with rear DB25 port
TM-D710			Tested to work with DMR using STM32-DVM v3 RPi hat. From the radio, must set radio to use EXT. DATA SPEED = 9600 bps and use 6-pin Mini DIN cable as specified by RepeaterBuilder.org (pin 4 "PR9" is audio output before discriminator). From MMDVM set TXInvert=0 and RXInvert=1. Note that TX audio gain must be set quite high for DMR to operate properly. (OH3ERV 2018-09-16)
TM-D710G			W4DHW - Currently being used on D-Star, DMR and P25 as higher power hotspot with STM32_DVM board. Works great! Set A-band or B-band to 9600 baud (external)
YAESU
Model	RX	TX	Notes
DR-1X			TX/RX audio is excellent, DMR/D-Star Tested (W2GLD)
FT-7900			Check/fine tune frequency for DMR use. TX will sag with temperature, set it 2-300 Hz above. (LA1PHA/LA1FTA)
FT-7800			Check/fine tune frequency for DMR use. TX will sag with temperature, set it 2-300 Hz above (LA1PHA/LA1FTA). Could not get DMR BER consistently less than 3-5% due to frequency instability. OK for YSF with BER ~1% (KE7KUS).
FT-8800
FT-100D			(CT1HDC)
FTM-350			Radio does not work on transmitting DMR (What I tested it on), with any combination of settings. The FTM-350 will receive DMR OK. (AE0CP)
FT-8900			(DMR CT1JIB)
FT-817			RX also looks to work (PD0ZRY)
FT-857			DMR/DSTAR works very well as DMO mode, BER stable around 1-2% ( IW9HFS )
FTM100/DE			PinOut MMDVM-->MINIDIN 10PIN : 1=DIN6, 2=DIN4, 3=DIN2, 5=DIN1, 6=DIN3 - IZ0RIN
FT-1907R/E			Works great on TX, works perfect on RX. You must open the transceiver and use the discriminator audio for tx/rx. 0% stable BER both ways. Although transceiver suffers from overheating if used for TX as well(in case of hotspot), due to lack of a blower. For further info contact me via email.(5B4AMD)
Vertex
VXR-9000 UHF			DMR/DSTAR works very well as DMO mode, TXDelay=45, DMRDelay=27, TXInvert=1, RXInvert=0 (F4GIX)
HYT
Model	RX	TX	Notes
TM-600U			RX work perfect. TX not work! (SQ9MYX)
Tait
Model	RX	TX	Notes
T800 Series I			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			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			DMR Works, More info (F4GIX)
Tm8100			DMR/DSTAR works well as DMO mode,DMR Delay 83 , More info (F4GIX)
Tm8250			DMR/DSTAR works well as DMO mode,DMR Delay 83 , More info (F4GIX)
TB7100			works with internal connections to RX/TX DF2ET, see https://www.florian-wolters.de/blog/2017/04/02/interfacing-tait-tb7100-and-mmdvm/
TEKK
Model	RX	TX	Notes
KS-960			Needs crystals. 2W output. (DB9CR)
ICOM
Model	RX	TX	Notes
IC E880			DMR/DSTAR works well as DMO mode (IK5XMK)
IC-V200TRE			DMR/DSTAR works, DMR Delay=40, More info (F4GIX)
IC-E2820			DMR works very well as DMO mode (SY1BRU)
IC-7000			DMR/D-Star works very well as DMO mode (SV6NOB) https://www.youtube.com/watch?v=NevkCvcxZYo
IC-2725			DMR works very well as DMO mode (SY3BOQ)
IC-F5061			Work in Progress: TXINVERT=On, RXINVERT=On. On radio main board, need to bridge coffee bean "F" to closed. On DSUB-25 accessory connector: GND = Pin 7, Tx_Audio = Pin 8, RX_Audio = Pin 9 , PTT = Pin 19, COS = 17. D-Star BER high, 9% RX. (N0RJC)
Harris
Model	RX	TX	Notes
MASTR III			DMR works well (NF0T)
Maxon
Model	RX	TX	Notes
SM-6450U			RX works great / TX unstable(YO6NAM)
Bridgecom
Model	RX	TX	Notes
BCR-50x			All modes work well (KØXM)
TYT
Model	RX	TX	Notes
TH9000D			RX DMR work perfect. TX not work!(F4GIX). Note from KD9KOO, these radios simply do not work as a transmit radio for digital modes. The radio appears to be doing some filtering/modification of the TX audio to the point where a digital radio can't decode it.