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SharkRF openSpot UHF Digital Radio IP Gateway DMR DStar C4FM Fusion

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Product Description


openSPOT is a standalone digital radio IP gateway / hotspot

Key features:

  • Supports DMR (Brandmeister, DMRplus), D-Star (DCS, REF/DPlus, XRF/DExtra, XLX), System Fusion (FCS, YSFReflector) networks. More supported networks and features will be available with new firmware releases.
  • Supports cross modem modes. Talk with your C4FM radio on DMR, and with your DMR radio on System Fusion networks!
  • Very easy to use, works without a computer. No additional hardware required, works out of the box. All accessories included.
  • Web interface for configuration and monitoring.
  • HTTP, UDP/TCP API support.
  • Custom 2FSK/4FSK RF protocol support with TDMA.
  • USB powered, low energy consumption, 20mW RF output.
  • Create your own private radio network using our open source server application.
  • Runs fully embedded software written in pure C, running on an embedded real time operating system. No Linux, bulky Windows software or failing SD cards!


Designed for amateur radio

  • Connect openSPOT easily to DMR, D-Star reflectors, C4FM/System Fusion rooms, and use your radio with excellent voice quality without sync errors
  • Customize communication settings on the web interface
  • Discover how digital protocols work, and connect your own apps by sending and receiving RF frames in UDP packets
  • Create your own RF protocol by customizing RF modem settings, packet format, sync words (even with TDMA support)
  • Use single, or separate RX/TX frequencies
  • Optional erroneous packet generator module for testing other digital receivers

State of the art hardware design

  • 2 CPUs running at 100 and 120MHz
  • USB mass storage device bootloader for easy firmware upgrades
  • 4 multicolor, bright LEDs for easy real time state monitoring
  • Low power usage
  • Automatic recalibration
  • DMR features

    • Use openSPOT not only as a DMR hotspot, but as a base or mobile station with 2 timeslots simultaneously
    • Timeslot repeating in base station/repeater mode
    • Send and receive DMR SMS messages
    • Built-in echo service
    • Controllable with calls and custom short messages to preconfigured DMR IDs

    Accessories included:

    • Antenna
    • AC/USB Power Supply
    • USB Cable
    • Ethernet Cable

    User manual from manufacturer website here


Product Videos

openSPOT intro (03:14)
A short introductory video in which you can see openSPOT working, the desktop and mobile web interface, and hear the DMR voice quality in two short echo tests. More videos coming soon! Subscribe to our YouTube channel, Twitter feed (https://twitter.com/sharkrfradio), and Facebook page (https://www.facebook.com/sharkrf/) for updates! See our webpage at https://sharkrf.com Music by Mark Tyner, https://soundcloud.com/marktyner/alpha-liner Intro sound by Sllarson, http://www.freesound.org/people/Sllarson/sounds/342186/
  • openSPOT intro
    A short introductory video in which you can see openSPOT worki...
  • SharkRF OpenSP...
    Unboxing and first sight of the SharkRF OpenSPOT !!! https://...

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Product Reviews

  1. Great Way to do All Things Digital Voice! 5 Star Review

    Posted by on 3rd Feb 2018

    This little blue box is offers a huge gateway into the world of Amateur Radio Digital Voice for a very affordable price. It runs on its own meaning you do not need a PC running all the time. It offers several different user profiles for very easy switching from DMR over to Fusion or DSTAR. There seems to be a very active user community on the OpenSPOT website, and customer support seems very attentive and responsive. You can't go wrong with this little guy.

  2. SharkRF Hotspot. 5 Star Review

    Posted by on 16th Jan 2018

    Great product and great service. Definitely will buy from MTC again. Shipped same day ordered.

  3. Great way to put your C4FM radio to use 5 Star Review

    Posted by on 15th Jan 2018

    I didn't know too much about this unit, but was hoping that it would give me Wires-x access. It does! I do not have unlimited access to Wires-x rooms, but I have enough to strike up a conversation at any time. Great product! MTC has great products at great prices!

  4. SharkRF Openspot 5 Star Review

    Posted by on 12th Dec 2017

    I am very impressed with the SharkRF Openspot. It was quite easy to setup, once you learn the nuances of DMR. I'm new to DMR, so it has been a learning experience, but there are a lot of YouTube videos which helped me understand how to set it up. If you decide to get one of these units, you will not be disappointed!

  5. Easy setup 5 Star Review

    Posted by on 3rd Dec 2017

    This is easy to set up and I was on the air in no time. Lots of features also.

  6. Great product bought from an oustanding business. 5 Star Review

    Posted by on 1st Dec 2017

    This product stands on it's own merits, it was simple to set up and has worked flawlessly. What really deserves 5 stars is the outstanding service and price I consistently get from MTC Radio. Thank you Richard, I'm a repeat customer for a reason.

  7. World wide new friends 5 Star Review

    Posted by on 1st Dec 2017

    Being an "old time" ham I have been slow to get into the 'digital revolution." I now discover the things I have been missing.

    Wow, has the Shark ever opened up a new world!

    Find someone to help set it up if you are having difficulties ( I was). Once set up listen in on ref001C for a couple of hours to get the idea of what is going on.

    Put your call out and start enjoying the fun.

  8. Great product 5 Star Review

    Posted by on 7th Sep 2017

    Very well thought out plug and play

  9. Easy and portable 5 Star Review

    Posted by on 28th Jul 2017

    Bought this so I could use my 92ad with D-Star as I do not have a repeater anywhere nearby. Took a few short minutes to hook up and use. Has worked well so far, with no difficulties.

  10. great p;roduct 5 Star Review

    Posted by on 3rd Jul 2017

    Somewhat com;lex but great yaw to get on the radio