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MMDVM

WIRES-X help and information

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Multi Mode Digital Voice Modem

So do you want a cheaper option?


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A MMDVM (Multi Mode Digital Voice Modem) is a link from your wires-x capable radio to a room on the wires-x system – allowing you to speak to other hams.

This can be particularly useful when out and about as you don’t need to link your radio in PDN mode to a laptop

The software (Operating System) runs on a small computer called a raspberry pi

There are different models and sizes from the small pi zero to the full sized pi – these can be used as a desktop PC giving them more than enough processing power and features to run pi-star

Skip to video first set up


Well for around £70 (fully assembled) you can get a small MMDVM JumboSpot; running pi-star

Mini MMDVM Hotspot with 0.96″ OLED screen

Where to get an MMDVM

You can buy there from many places – including our shop.


Would you like to have a look at the pi-star software?

Click here to have a look at the admin config

You cannot change settings; it will show you an error, but you can get an idea of a WIRES-X setup.


For your pi-star

Default Username: pi-star
Default Password: raspberry

Changing rooms


Note this works on all WIRES-X radios

This little box allows you to connect a WIRES-X digital radio to the WIRES-X network and talk via any WIRES-X digital radio.

I had it up and running in minutes and tuned into CQ-UK

MMDVM van

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car_setup_MMDVM
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Use your mobile data to connect


Make a case from Lego

So whats in the tiny box?

  • Raspberry pi (zero/ 3b)
  • OLED screen or nextion screen
  • MMDVM HotSPOT Module
  • Antenna
  • Case
  • micro SD card

This is all neatly packaged in a 7cm x 3cm x 3cm (approx) case


Other specs

  • 5 Volts DC
  • 0.18 Amps (± 0.03a) (idle) *
  • 0.25 Amps (± 0.03a) (transmitting) *
  • Connect to power with micro B USB

*Reading from USB volt and amp meter

Pros
  • Portable; can be used anywhere if tethered to your mobile phone

  • Power from 5v USB (could use a battery)

  • Support for Dstar – DMR – and others…

Cons
  • No battery included

  • Not all rooms supported

3.2″ MMDVM


This setup is almost the same a the small oled screen, just with a customisable 3.2″ screen

I find one of these on my desktop it great especially as it tells me where the call sign is from

You can get these is our shop

Tip

When your MMDVM is connected to home wifi and you can access the admin area; there is a tab up the top that says Restore/Backup. You can click download configuration and save to a place on your PC. Then if anything goes wrong and a reset is required, you can upload in the same way, restoring it to a time it was working.

Screen layouts

Download a copy and install on a raspberry pi

pi-star download PI-star guide by KE0FHS

Updating (pi-star)