Dongle’s and Hotspots

The Thumb-DV, DV4Mini, Baby-Star, Shark-RF have been really good for the hobby..



About a year on, this small device has proved itself to be one of the easiest most versatile hot-spots, totally brilliant!

The Open-Spot Shark-RF, Stand alone DMR hot-spot, doesn’t need any supporting device (truly self contained) access the menu via any browser on any platform.

Radio operation on C4FM:

  • You can change rooms with your C4FM radio by entering the Special command DTMF code (by default it’s *) followed by the desired room number,
    (for example *99 for room 99). If you are using a DMR radio, then you can change rooms by starting a private call to the desired room number.
  • If you want to change servers, you can do that by setting up different configuration profiles in openSPOT, one for each server.
  • Switching between configuration profiles is also described in the user manual.

Common issues are:

  • Connection issues, check your router firewall, are you on the same network?? eg you cant go through your mobile network to access your local unless you know how to do it.
  • Not reading the online manual,
  • Some people want to use it mobile, so have to use a TP-Link MR-3020 travel router to add Wi-Fi (Wi-Fi is not the best way to use ANY dongle device)
  • These are shipped fully working, they do not need firmware unless it tells you, there’s no need to reset straight from the packet!
  • Do not change the default password unless you have it on the public side of your firewall.





The Baby Star, Stand alone D-Star hot-spot, a doddle to set-up via your web browser.

Common issues are:

  • wont connect to CCS database, check your ports or drop the node in the DMZ to test if the problem goes away.

The DV4Mini


The DV4mini Computer based Hot-spot,available as a 70cms/2mtrs/70cms AMBE

needs setting up, you need to be registered on the DMR/CCS7 system, USB drivers work well, multi mode DMR/C4FM/D-Star/P25. Easy to set up and good results on both PC and RasPi.

Common issues are:

  •  no driver found, solution is to look at your anti-virus and or install manually using the drivers from helitron drivers here usb-driver-dv4m-win7-8-10 and latest raspi dv4mini.exe for pi here raspi_21.11.2016
  • Wont connect, you need to register on the DMR network, make sure all the red boxes are turned green. you also need enter your locator.
  • DV_serial has stopped working.. most cases this doesn’t happen often, if you cannot start dv_serial then un-install the whole package and reboot.. re-install the the software as admin..
  • wont TX on 2 mtrs, you need the latest software from

Now available as DV4Mini AMBE, no need for a radio just a PC and headset.. Manual-DV4mini_English-V2_0-2016_07_23

NW Digital radio


The NW Digital Thumb-DV. The most common program used with the Thumb-DV is WinDV..

Common issues are:

  • Unreliable in its current format (Beta 1.5.8) and 1.5.7 is not compatible with the Thumb-DV,
  • FTDI Drivers can be troublesome.
  • instructions how-do-you-install-win



The DV3K-Dongle from Internet Labs, very reliable and easy to set up, USB drivers work well..

The DV-Mega

img_6733 img_6734

The Blue Stack DV-Mega, essentially stand alone, needs an android device to work.

Common issues are:

  • Firmware updates require a wire soldering
  • When used with blue spot, android messages cause the blue tooth to disconnect.
  • When used with RASPI needs drivers, and software on Linux platform.

Software for windows: bluedv_for_windows_-_version_06300