Wireless Holdings DV4mini
Vendor Wireless Holdings
Model DV4mini
Firmware 1.77
Website http://wirelesshold.com/manuals.aspx
Retail price $129
DMR Yes dPMR Yes
C4FM Yes D-Star Yes
Tetra No APCO P25 Yes
Terminal support
Group call Yes Voice call Yes


The DV4mini is a tiny USB communication device for several digital voice communication standards.

The following DV modes are currently supported:

  • D-Star
  • DMR+
  • DMR BrandMeister
  • C4FM
  • APCO P25
  • dPMR (experimental)

Running a small control panel software available for Windows and Linux (requires Mono) running on a PC, Tabletcomputer or several thinclient boards (Raspberry Pi, Banana Pi and others), the DV4mini provides access to the amateur radio DMR-network via reflector connections.
To communicate via such a hotspot, a transceiver capable of the used DV mode is necessary to operate, the hotspot provides only an access gateway to the selected infrastructure.


Original DV4mini software has limitations to access the so-called DMR Reflectors. That is the reason why we did mapping of talk groups into reflectors.

Timeslot or Talkgroup selection are currently not supported by the original firmware software. This is also the reason, why no private voice or data calls or direct repeater links can be made when using DV4mini with original software.

Starting BrandMeister version 20160105 we have a new function of Extended routing for DV4mini and this feature now is also included in the DV4MF2 Control Panel.


DV4MF2 MultiFunction ControlPanel (no more available)

The DV4MF2 Control Panel has been developed by DL2MF since November 2015 with the goal of seamless integration of all features of DV4mini and compatible operation to the original control panel software. After the formal review it now has officially been granted to be released by DG1HT since Jan, 3rd 2016.

Support and Development of DV4MF2 ended at Sept. 09th, 2016, the software is currently no more available!

Highlights of the DV4MF2 Control Panel (for archive purposes):

  • Extended Talkgroup Routing for DV4mini and BrandMaster fully integrated (since V2.0)
  • user friendly and seamless integration of all modes including BrandMeister
  • dual skin control panel offering compact & standard view
  • national language support for up to 20 languages [1]
  • optional color template for both skins (since V2.0)
  • seamless switching between all modes without program restart or reconnect
  • configurable options to disable QRZ.com request (save your dataplan when operating mobile)
  • optional disable of S-Meter and CPU bargraphs
  • optional logfile with connect and QSO data (since V2.0)

The compact view of the DV4MF2 Control Panel has been optimized for smaller 8" tablets and normal daily operation. Support of very small displays like the touch display with 480x320 pixel was not in focus, although it also can be used with this, vertical size fits already perfect.

DV4MF2 Xubuntu3.JPG
DV4MF2 running on Xubuntu 14.04 - CompactMode

DV4MF2 running on Windows 10 - CompactMode

The prerequisites of this control panel are:

  • Windows 7, 8, 8.1 or 10 (32-bit/64-bit),
  • Windows XP with MS .NET 4.0 is not officially supported, but running
  • Linux (Mono) operating systems (tested under Ubuntu 12.04, Xbuntu 14.04, Raspbian)

Version history:

  • V1.64.22 - 2016-01-03 - first public release
  • V1.64.23 - 2016-01-09 - support for xref.ip (DStar xreflectors)
  • V2.0.0.6 - 2016-01-22 - First public V2.0 release, providing support for XTG - Extended Talkgroup Routing
  • V2.0.0.9 - 2016-01-26 - Bug fix for connect to fusion reflector FCS002
  • V2.0.0.10 - 2016-03-26 - "The Easter release" - first version with foreign language support for 10 NLS
  • V2.0.0.11 - 2016-04-01 - "April joke" - New GUI language file format, up to 20 languages and 45 new text elements
  • V2.0.0.12 - 2016-05-21 - "Dayton" - bringing more new languages, XTG updates, fixes for operation under mono/Linux

More information and installation guide:

DV4mini Control Panel 20151215 and newer on all platforms

Starting version 20151215 beta DV4mini software has build-in support of BrandMeister.



DV4 Bootloader Jumper.jpg

To get the stick in to bootloader mode if all else has failed connect the jumper as shown above