Mmdvm repeater

I am currently running the STM32-DVM Pi-Hat, and I think its amazing paired with my CDM1250's. Everything MMDVM is working great, but what I am wondering is if there is the possibility to use the inhibit pin to bypass the MMDVM using a tone, and acting as a regular analog repeater? John Brent VA7WPN CIW216

Mmdvm repeater. Pager Setting User Guide 0810/update 2023.12.04 #POCSAG, #DAPNET. Test send message to yourself. Run send message to yourself, change the Callsign. PLL or crystal, 137-199 MHz and 400-499 MHz, POCSAG. Please notice that the frequency you use. *One device just with 4MHz bandwidth. *The frequency can be customized in the frequency range, 4MHz ...

The following radios have been approved to work as homebrew repeaters HF frontends: Motorola. Model RX TX Notes. CDM750 / 1250 / 1550LS WORK WORK Excellent TX & RX on all modes. CM140 / 160 / 340 WORK WORK EM200 (CM140) Very low BER at Rx (SV4QXF) Tx works (SQ6POG) EM400 WORK WORK -XE1HAX- TX / …

The method described in this document will temporarily connect your repeater or hotspot to. ... DMR/Homebrew/MMDVM. Step 10: Click the Change button to change the list of talkgroups to the TGIF list. Hopefully this guide has been helpful. If you have any questions or need any help feel free to send an.Upgraded MMDVM Duplex Hotspot Radio WiFi Digital Voice Modem Work UHF VHF Dual Band Support DMR Dstar YSF P25 Fusion Raspberry Pi Zero W Two Colors OLED. 3.8 out of 5 stars. 4. $159.80 $ 159. 80. ... mmdvm repeater dmr+repeater gmrs repeater ...15 Software download. 15.1 RTL-SDR Lite for MMDVM. Welcome to BI7JTA'Wiki for MMDVM. Begin December 1, 2019, I will continue update this WIKI page instead of Google blog, I am working on MMDVM just for my hobby, I am happy to share my knowledge and resources about MMDVM open source project. The BCR Repeater provides a feature rich repeater/base station. Packed with loads of RF power, this dual fan-cooled unit is perfect for amateur radio applications (2m, 1.25m, and 70cm) . Designed and assembled in the USA. All programming software/kits can be found here, or on the Product Support page under the Support menu . Відповідь від UR6HV у темі MMDVM Repeater. Eще зимой 2016 мы с Иваном UX7HO и Сергеем UR6HFU начали подготовку к установке 2х репитеров на 145.700 и 438.700 МГц, было решено объединить их т.к. активность на УКВ сильно ...

A hotspot, simply put, is your internet gateway to a particular DMR network. You would use a hotspot when you either don't have a DMR repeater nearby, or simply don't want to tie it up for any length of time. Many hotspots are capable of multiple modes as well, such as D-Star, P25, DMR+, YSF and NXDN… but we are only going to talk about ...The MTR2000 is an analog repeater, and has no native support for DMR or any other analog mode. (The MTR3000 _does_ support DMR in some configurations, it seems.) Using something like the MMDVM, you could build your own. But I've just learned of the STM32-DVM-MTR2K, which is an MMDVM board that sits in the card cage!Important update ,from firmware v1.4.12 Frequency restrictions to avoid satellite interference. Please avoid the following ranges: 145....Ich habe mit ein STM32 von Repeater Builder bestellt.Damit geht es jetzt in mein neues groß Projekt „MMDVM Relais" los.Also viel Spaß73 de Jan http://www.OE1...About the first repeater (W9YT, the one works with Anytone but not with 7550): It’s a somewhat funny mixture of a Kenwood repeater and an mmdvm host. Here are some details about this setup. The second repeater labeled itself as a DMR Marc repeater, and the handshake seems to be successful for both Anytone and 7550 on that repeater. However ...

Use MTR2000 repeater build MMDVM(DMR/P25/DSTAR/C4FM/NXDN) repeater, Amateur radio purpose.Facebook group https://www.facebook.com/groups/v3f446Buy device ht...STM32-DVM-MASTR3 MMDVM lockout sources: Remote PTT IN selected. The STM32-DVM-MASTR3 may has three possible selections to "lockout" (disable) the modem. In this example, "Remote PTT IN" should be jumpered as show in the image above. We do this because Remote PTT is the signal the external controller will use to key the station.The repeater does work fine in stand alone analog mode. With the MMDVM, repeater mode has been disable and the station is in base station mode to maintain full control of the transmitter via the rear connector. 3. Just an additional note, the repeater has been programmed WIDE band.K0RQ MMDVM Repeater. Introducing North Dakota's first Tri-Mode Repeater. On 443.400+ MHz, the K0RQ repeater is capable of doing D-STAR, DMR, and C4FM. This repeater is not only designed to be experimental for me, but experimental for all users so jump on, make a QSO, and a learn from a mistake or two. This repeater is located centrally in ...

Hsst marine corps.

Set UR field to either CQCQCQ, USE REFLECTOR or USE REPEATER. Following the recommendations above will help ensure your radio is set 'correctly' for use the DSTAR mode with pi-star. Also if the pistar setup is intended to be a multiuser installation such as a repeater or simplex gateway, where it runs under its own club call, …Intro. After the online resources to mount its full duplex MMDVM digital repeater based on Arduino and Nucleo STM32F4, here is the time to explain how to set up a "homemade" access point (Hotspot) MMDVM based on a few simple elements:. A "STM32Duino" board based on STM32F103 CPU, which we will program with MMDVM (firmware); A RF transmitter/receiver UHF RF7021SE (ADF7021) circuit board ...Dec 22, 2020 · For preview, more settings guide please follow my YouTube , I will update again.MCS2000 pinout sane as GM1200.The MMDVM repeater board and cable, obtain from... MMDVM Repeater This is a multimode digital repeater that is setup to handle both D-Star and Yeasu System Fusion (C4FM) traffic. Either mode can be used locally (both unlinked), or linked to various D-Star or YSF reflectors. D-Star linking uses the standard commands as outlined below. YSF linking uses Wires-X commands (see the Yaesu Wires-X ...

This group is focused on sharing the success and supporting others that are working towards building and setting up MMDVM repeaters. Unlike some groups where it is full of people using HOTSPOTS who...Re: Firmware update MMDVM_HS:021 v1.0 Problem. by dl5raz » Mon Oct 26, 2020 7:11 pm. thanks for reply! is this so correct now: pi-star@pi-star (ro):~$ sudo pistar-mmdvmhshatflash. This tool is used to flash your MMDVM_HS Hat Modem. to use the command, you will need to pass the name of your modem,This is the latest all digital mode ZUM RADIO MMDVM Pi Board. Great MMDVM board Time Owned: more than 12 months. We have 5 MMDVM repeaters currently set up, 4 with the Ver-2 pi-hat boards (Red-boards) and 1 with Ver-3 pi-hat board (Blue-board) they are very easy to set up and have great audio. Were are running the boards in DMR, D-Star and NXDN. Sep 3, 2022 · DMR Gateway Explained. DMR Gateway is a part of the MMDVM_Host suite created by Johnathan Naylor (G4KLX) to add features and functionalities to the DMR side of the MMDVM. If you have never configured a commercial DMR Repeater before, its important to know for the most part, DMR repeaters are “Dumb” devices in the grand scheme of a network. The 878 has a ranging mode which will periodically check if you are in range of the repeater- if it doesn't get a "handshake" back it will tell you. In theory it's a nice feature but kind of annoying in reality. Since you said "I can hear the analog side" I'm assuming it's cheap MMDVM repeater, running in dual mode.Great MMDVM board Time Owned: more than 12 months. We have 5 MMDVM repeaters currently set up, 4 with the Ver-2 pi-hat boards (Red-boards) and 1 with Ver-3 pi-hat board (Blue-board) they are very easy to set up and have great audio. Were are running the boards in DMR, D-Star and NXDN.I wanted to thank you for this excellent read!! I definitely loved every little bit of it. I have you bookmarked your site to check out the new stuff you post.Keeper: Dave Porter – G4OYX View on UK Repeater. GB7VO – South Shropshire. Modes: Yaesu System Fusion/C4FM Output: 439.7000 MHz Input: 430.7000 MHz Spacing: 9000 kHz Digital: C4FM DSTAR DMR DMR: Colour Code 1 – Talk Group 9 Notes: This is an MMDVM repeater that is now internet linked Keeper: Matt Porter – G8XYJ View on UK …Instructions indicate using the STM32-DVM/MMDVM_HS - Raspberry Pi Hat (GPIO) modem choice. It works great in simplex mode, updated firmware and current pistar software. I have a few questions when using it in duplex mode. Instructions say turn on "Duplex Repeater (or Half Duplex on Hotspots)". When I do that, I assume I need a split in TX & RX ...Selected Modem: MMDVM_HS_Dual_Hat (DB9MAT, DF2ET & DO7EN) for Pi (GPIO) ... When I was setting up a duplex repeater I was pulling my hair out because it wasn't detecting the DMR so I took a break to program the the channel into my radio and it started working. In duplex mode the repeater is looking for the radio to ask the repeater to ...I'm not sure if it's Part 90 acceptable, but you can use a Raspberry Pi and Pi-Star (the software that runs the hotspots) as an actual repeater controller. You don't use the MMDVM hat/RF portion, and would need two Part 90 radios that can handle digital transmissions, but then you have an actual digital repeater.

The MMDVM/Raspberry-Pi combo will turn a single analog radio into a high powered hotspot or 2 radios into a fully featured digital voice repeater. The MMDVM_Host software counterpart is opensource and feature rich giving users access to the following digital modes: D-star. DMR. Yaesu System Fusion. P25 Phase I. NXDN 4800. POCSAG.

DMR/D-Star MMDVM Repeater 430.2875Mhz (+9 MHz) DMR - CC07 TS1 FreeSTAR : TS2 BrandMeister D-Star GB7HA C - GB7HA G Note - No Static TG set up . GB3VR. ... DMR Repeater Located in Hatfield Herts 439.425Mhz - 9MHz split CC10 TS2 BrandMiester static TG Hubnet. TS1 DMR2YSF eg to connect to Southern Fusion use TG 7041893.NanoPi_NEO Wiki http://wiki.friendlyarm.com/wiki/index.php/NanoPi_NEOMMDVM hardware and software is at the core of most digital mode hotspots on the market. The success of the MMDVM Project comes from countless hours of work by different people and projects going back to the earliest days on D-STAR. MMDVM now supports D-STAR, DMR, YSF, P25, NXDN, M17, POCSAG, and even analog. This project has become a truly ...FOR AMATEUR RADIO USE ONLY. Simply send your repeater back to us for the conversion and we will do the rest. - Install fee. - Return freight will be $30 in the continental US, Varies internationally. Please review our return policy here. Contact us for current lead times:816-532-8451 - Extruded aluminum case- NanoPi Neo- Allwinner H3 CPU- 512MB ...The MMDVM-Repeater board is a lot like a hotspot, except it doesn't have a radio built onboard. Instead, it uses cables to wire directly into the IO pins of the radio(s) you choose. The MMDVM/Raspberry-Pi combo will turn a single analog radio into a high powered hotspot or 2 radios into a fully featured digital voice repeater. The MMDVM_Host ...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 …Post a Comment. Note: Only a member of this blog may post a comment.Install FreeDMR MMDVM. (Still in Beta) To make Repeaters easy to access for users on the FreeDMR Network. All users will need in the radio is two channels. TG 9 on Slot 1 = Local RF TG 9 on Slot 2 = Dial-a-TG. All other Talk Groups are blocked, unless using Dial-a-TG on TG 9 Slot 2. This is the option we would like all repeaters to use. Easy to ...User guide for MMDVM_BAT (battery inside) Basic operations. 1, Press POWER button 1s to startup hotspot, wait 30s OLED screen show MMDVM status, when MMDVM service Initialization completed. 2,Press POWER button 5s to shundown hotspot. 3,Press POWER button 3s to reboot hotspot. 4,Double press POWER button to open the LED Flashlight lamp, double ...

Kollel supermarket.

Lgi homes lake alfred.

Zum Radio: Best Quality Products for Amateur and Ham Radio Operators. Where to buy now. Explore user guides and more. We make the highest quality communications equipment for amateur and ham radio operators. Shop our best-selling products: ZUMspot Kit and MMDVM-Pi boards.Post a Comment. Note: Only a member of this blog may post a comment. This is the D-Star Repeater which controls homebrew repeater hardware and links into the ircDDB Gateway to allow for access to extra non-RF facilities, The hardware supported include: DVAP. DV-Mega (D-Star only) GMSK Modems. Soundcard repeaters (including UDRC) MMDVM (D-Star only) DV-RPTR V1, V2, and V3. Icom Terminal and Access Point modes. Important update ,from firmware v1.4.12 Frequency restrictions to avoid satellite interference. Please avoid the following ranges: 145.8-...The MMDVM VHF repeater has been installed at the Knobby site today. The equipment is the same Tait TB8100 base station together with a new MMDVM modem. DSTAR is shared with other modes on this repeater. The default reflector is currently set to REF023_C. 146.7875MHz -600KHz .D-Star Configuration. Select module B (for 70cm) D (for digital data) in the drop down RPT1 Callsign. Leave Remote Password as it is. Select XLX547 and module B in Default Reflector. Choose Startup if you want the hotspot to connect at startup. Choose Manual if you want the hotspot to connect manually when you key-up.MMDVM modem from eBay - £14.07. Raspberry Pi Zero W - £9.60. Raspberry Pi PSU - £8.00. 16Gb SD card - £5.99. Total cost - £37.66. I could have built four of these for less than the cost of the Zumspot. I'm not saying that people shouldn't buy commercial hotspots but just wanted to demonstrate that it's very easy to get the ...438.00-444.00 ATV repeater input with 439.250-MHz video carrier frequency and repeater links 442.00-445.00 Repeater inputs and outputs (local option) ... ↳ MMDVM_HS Hat(s) ↳ DV-Mega Hat(s) ↳ DV-Mega GMSK Arduino; ↳ DVAP Dongle; ↳ DVR-PTR V1 V2 V3; ↳ Other MMDVM Modem Boards;Specifications. The MMDVM-Pi board is designed for repeater and high power hotspot applications – connects to user supplied Raspberry Pi board and radio(s) Utilizes a high performance 32bit ARM processor (STM32F722) running at 180Mhz (Room for future upgrades) Fifth generation analog filter design that provides an extremely low BER … ….

Dynamic talkgroups are not connected during normal operations but, by keying up your radio and assuming it isn't blocked out, it will connect for 15 minutes and act like a static talkgroup. Every time you key up, it resets the 15 minute timer. After 15 minutes, it's disconnects from the talkgroup.You will need 2 pcs. One that connects to the MMDVM board that will send data. The other HC-05 (or HC-12) will connect to the display and will receive the data. Only 3 wire connection is needed for one way data transfer.The findmodem command returns this on both the new repeater and the existing one, also in an MTR2000 but that one is running original pi-star: Port: /dev/ttyS1 (GPIO) Baud: 115200 Protocol: V1. Modem Data: MMDVM 20190130 (D-Star/DMR/System Fusion/P25/NXDN/POCSAG) 12.0000 MHz GitID #b4647d8.Here is a quick demo of the FM Mode working on a MMDVM. I have some more fine tuning to do, but you can see that it does work.V3F4 MMDVM board from BI7JTAThe VKRDB repeater site is operated by Bayside District Radio Society Incorporated and is located on Mt Cotton Mt. Cotton in South East Queensland The DMR repeater is a MMDVM shield on A Raspberry Pi Model 3 driving an ICOM FR-3000 analogue FM repeater. As at June 2020, the Pi-Star version is V3.4.17. and the currect version at this date is V4 ...Calendar dates repeat regularly every 28 years, but they also repeat at 5-year and 6-year intervals, depending on when a leap year occurs within those cycles, according to an artic...Though the MMDVM project began in 2015, its code history dates back to 2007. To-date, more than 80% of hotspots/repeaters on the Brandmeister DMR network are utilizing MMDVM, and the number of users that are registered DMR ID members exceeds 250k. Additionally, there are several repositories on GitHub that are part of the MMDVM project.The STM32-DVM-MTR2K v2 was designed to include analog operaiton along side MMDVM using the built-in controller. Jumper block JP8 on the STM32-DVM-MTR2K connects the MMDVM PTT signal to MTR2000 GPI 3, and the MMDVM Inhibit input to MTR2000 GPO 2. This is covered in detail (including necessary wildcard tables) in the article MTR2000 and STM32-DVM ...YouTube Mmdvm repeater, Bron: F5UII After the article on the configuration and installation of a Nextion screen on a MMDVM repeater, let's see together how to integrate a small OLED display on MMDVM. This type of display is known by the reference SSD1306, it measures 27 millimeters for a display definition of 128 x 64. There are two, Latest jumbospot latest upgraded OTG pi-star version MMDVM Repeater open-source Multi-Mode Digital Voice Modem for raspberry PI. 1 sold. 39,87US $. Extra 3% off with coins., Post a Comment. Note: Only a member of this blog may post a comment., "HAY VICTORIA "Josh MoralesUnción Producciones 2017Verso 1Calmas toda tempestad Alumbras mi oscuridad La montaña frente a miLa echas al profundo mar Verso 2G..., How to upgrade the Firmware on the STM32_DVM_PiHat V1 (Green) Board. This guide assumes you are Running a Pi_Star image and that you wish to upgrade firmware on a STM32_DVM_PiHat . Log into Pi-Star's HTML configuration page, or connect to its IP address via SSH using a application such as PuTTY. Login Defaults -> usr:pi-star -- pwd:raspberry ..., There has been quite a bit of interest on the Round Table about the K6PUW MMDVM multi-mode repeater. This thread is for questions, comments and discussion of the various aspects of multi-mode repeaters. Please feel free to ask, and comment here. Also, please visit www.k6puw.com frequently for up to date information on the system and its status., 240 -120. 94 -125. 50 -130. The STM32-DVM-MTR2K will saturate the MMDVM ADC input at signals much stronger than -30dBm. That's ok, I did that on purpose in order to keep the signal level at the low end up a little higher in order to improve ADC resolution for weaker signals. MMDVM Motorola MTR2000 MTR2K STM32-DVM-MTR2K., Sep 3, 2022 · DMR Gateway Explained. DMR Gateway is a part of the MMDVM_Host suite created by Johnathan Naylor (G4KLX) to add features and functionalities to the DMR side of the MMDVM. If you have never configured a commercial DMR Repeater before, its important to know for the most part, DMR repeaters are “Dumb” devices in the grand scheme of a network. , Rusia celebra su desfile anual del Día de la Victoria en la plaza Roja de Moscú. El gigante ruso exhibe músculo militar para conmemorar la victoria del ejérc..., Click Here To Download The MMDVM-Pi 1.0 Board Configuration Instruction Sheet! MultiMode Digital Voice Modem (MMDVM) Designed for repeater and high power hotspot applications (Additional Hardware Required: Radio(s) and Raspberry Pi); Fully assembled and tested full sized Pi format PCB, Mounts cleanly on RPI 2 and 3, FTM-100 WIRES-x control with MMDVM on the W4GSO repeater in Greensboro NC on 442.8625 Currently the repeater is set to run C4FM and Dstar. It is a refurb..., After setting up the MMDVM duplex hotspot board, it is necessary to adjust the transmit and receive offsets in the MMDVMHost expert editor section. Basically this corrects the transmit (TX) and receive (RX) frequency of the board, if they're not on frequency. This is the BER 0.4% when no setting RX/TX offset., 1a) Background. This is an article about personal, low-power hotspots, also known as personal access points 1, not repeaters.(For info about digital repeaters, see: How to make a MMDVM Digital Repeater by N5AMD and Repeater Builders.) Many personal, low-power hotspots are boards that mount on small computers like the Raspberry Pi, a few are all-in-one boards, and some others are thumb drives ..., Pager Setting User Guide 0810/update 2023.12.04 #POCSAG, #DAPNET. Test send message to yourself. Run send message to yourself, change the Callsign. PLL or crystal, 137-199 MHz and 400-499 MHz, POCSAG. Please notice that the frequency you use. *One device just with 4MHz bandwidth. *The frequency can be customized in the …, MMDVM_DUPLEX hotspot V1.3 Setting for Pistar Setting For Pi-star software and raspberry hardware (rpi 0-3) support pi4b Pi-star General Configuration for MMDVM_DUPLEX Set Controller Mode:Duplex Repeater or Simple Radio Frequency : Freq:144-148,219-225,(Main Band)420-475,842-950 Duplex Mode:Example:RX:438.000000 TX:433.000000, Nextion LCD for Duplex hotSPOT, RPi hotSPOT with fan, Repeater kit board. For Duplex hotSPOT. The are two ways, 1. Use modem in the hotSPOT board, 4PIN show "LCD", pi-star Config MMDVM Display Type select Nextion -> Modem. HS RXD to Nextion TX. HS TXD to Nextion RX. HS 5V to Nextion 5V., 33 REPEATERS FOUND AT OR NEAR MESA = On-Air = Off-Air = Testing/Reduced = Unknown Click on the frequency for additional details. Click on a header to sort. Note: Sorting does not carry through to exports! Frequency Offset Tone Up / Down Location County Call Use Modes; 145.1250-.6 MHz: Mesa, Usery Mtn: Maricopa: KE7JFH: OPEN:, This repeater is located at the 911 Center near Greensburg and currently has a power output of 20 watts. It consists of a Yaesu repeater controlled by an MMDVM board allowing it to operate as a multi-mode digital repeater accommodating FM retransmissions as well., What if your 'couple goals' aren't to lose twenty pounds together (though getting and staying healthy is great), to make and save enough to take that once-in-a-lifet..., GB7IT is our DMR repeater which is connected to the Brandmeister network. We are using a Yaesu DR-1X repeater with an MMDVM KI6ZUM radio pcb for raspberry pi board plugged into the rear 15w HD connector of the DR-1X. The MMDVM is run by a tiny Raspberry Pi 4 computer with the Pi-Star image installed. You can now operate through GB7IT on 439. ..., Explore a wide range of the best mmdvm repeater on AliExpress to find one that suits you! Besides good quality brands, you’ll also find plenty of discounts when you shop for mmdvm repeater during big sales. Don’t forget one crucial step - filter for items that offer bonus perks like free shipping & free return to make the most of your ..., MTR2000 + MMDVM. Cort Buffington, N0MJS. #175647. Folks, I will try to keep this short and not a sales pitch. I am only posting this here b/c I've received a number of questions from folks who's names I recognize from the Repeater-Builder list, and this is a much more efficient way to communicate. I am still producing the STM32-DVM-MTR2K., May 20, 2018 · Important update ,from firmware v1.4.12 Frequency restrictions to avoid satellite interference. Please avoid the following ranges: 145.... , NanoPi_NEO Wiki http://wiki.friendlyarm.com/wiki/index.php/NanoPi_NEO, The MTR2000 is an analog repeater, and has no native support for DMR or any other analog mode. (The MTR3000 _does_ support DMR in some configurations, it seems.) Using something like the MMDVM, you could build your own. But I've just learned of the STM32-DVM-MTR2K, which is an MMDVM board that sits in the card cage!, Transmission lost, total frames: 248, bits: 34968, errors: 2602, BER: 7.44109%. From here, you can find the mean (centre) frequency: (434249800 + 434250800 )/2 = 434250300‬ Hz (300Hz higher than the nominal). Use the “E” command once again and enter your new mean frequency – for me, this was 434250300‬ Hz. e., You can use an MMDVM hotspot if you don’t have a digital repeater nearby or simply want some other options. Basically, hotspots are your own personal digital voice repeater and gateway. A personal, low-power hotspot is a combination of hardware, firmware, and software that lets an amateur radio operator with an Internet connection link ..., FOR AMATEUR RADIO USE ONLY. Simply send your repeater back to us for the conversion and we will do the rest. - Install fee. - Return freight will be $30 in the continental US, Varies internationally. Please review our return policy here. Contact us for current lead times:816-532-8451 - Extruded aluminum case- NanoPi Neo- Allwinner H3 CPU- 512MB ..., 5. Location. Salem va. Oct 5, 2017. #1. Puzzling question about MMDVM home-brew repeater vs Motorola MOTOTRBO™ Repeaters. I have a Uniden bcd536hp scanner with DMR upgrade installed. It will decode DMR talk groups on the MOTOTRBO™ repeaters on the C-Bridge network, but it will not decode talk groups on the MMDVM repeater BrandMeister network., The Repeater Builder-made controller cable is designed to keep the analog function of the DR-1X repeater operable. When using the RB cable, if the DR-1X successfully decodes a CTCSS or DCS tone, the CTCSS detection line pulls low and disables the STM32_DVM via RXSQ on pin 3 of the Pihat., ** Welcome to GB7RA the Wirral MMDVM Repeater ** GB7RA repeater is available on the following frequency. This repeater supports users of DStar & Yaesu System Fusion/ …, This is a simple way to implement a combined analog and multi mode digital repeater using a Kenwood TKR-750/850 radio. A Zimmerman MMDVM Pi-Hat was used for our modem, but the idea has been implemented using other modems. A programming trick is utilized to allow the internal analog controller to be used on both Ver 1 and Ver 2 radios., MMDVM board for Arduino Due. To build a multimode digital repeater, G4KLX have developped a complete software called MMDVM ( Multimode Digital Voice Modem ). It is compatible of main digital modes (to date, C4FM, DSTAR and DMR). This board interfac on one side transmitter and receiver and, on the second hand the Arduino Due.