Yaesu FTM-400DR Bluetooth Module BU-2

Earlier over the weekend, I installed a YAESU BU-2 Bluetooth Module into my FTM-400 DR. This page is just a log of that quick exercise. Accompanied by a YT video.

73s, thanks,


FTM-400 DR – Bluetooth Module (BU-2) and Installation Pictures

10 Comments on Yaesu FTM-400DR Bluetooth Module BU-2

  • Brad W6BJB says:
    February 21, 2016 at 10:48 am

    Do you happen to hear an intermittent buzz on 70cm frequencies after you installed the BU-2? I’ve tried two different boards in the same 400 and I get an intermittent buzz until I connect the headset and then it goes away.


    • N0AGI says:
      February 21, 2016 at 4:06 pm

      hi Brad – i have not experienced that specific issue. I do scan a few UHF and VHF frequencies while on the road and i’m yet to see this issue. Does your FTM-400 have the latest DSP and FW ? Thanks for visiting and asking. 73s


  • Hendrik Susanto says:
    August 12, 2016 at 1:35 am

    Hello N0AGI
    Do you know if the BU-2 will pair with an Android tablet? I’m thinking if it does, then maybe APRSDroid might work with this radio through Bluetooth. Thanks!
    Hendrik W1FJC


    • N0AGI says:
      August 17, 2016 at 6:56 am

      hi Hendrik – good question. I have not tried this. But, can try that later this week and post back a reply.


  • Jerry - N2JPZ says:
    November 1, 2017 at 8:32 pm

    Greetings! Were you ever successful in pairing the BU-2 to an Android and running APRSDroid? My TM-D700 is getting long in the tooth and I’ve been thinking the Yaesu with the big color screen would be nice.



    • N0AGI says:
      December 13, 2017 at 8:07 pm

      hi Jerry – unfortunately, that took a back-burner priority.


  • JOSE (EA4GZP) - SPAIN says:
    April 7, 2018 at 12:18 pm

    Hi there,
    I´m about to order the UB-2 Bluethooth module for a Yaesu FTM-100DR….due I want the sound of it on an external bluetooth speaker that I can hear/move around my house (out of the shack room).
    Do you think that it will pear it?
    Thanks for your help!!!


    • N0AGI says:
      April 26, 2018 at 7:55 pm

      hi Jose – the BT module is very picky about which end-point device (i.e., speaker/mic) that it wants to pair with. So, in short, I am not sure. I suggest you do some research on compatibility of which speaker/mic you’re pairing with. Hope that helps – best wishes


  • Rob Schlotterbeck N8SOJ says:
    August 6, 2019 at 5:50 am

    What kind of Bt range do you get from it? I will be mounting the radio body in my trunk and wanted to make sure it would reach. My VX8R only gets about 5’ of dependable range so I wanted to make sure that the FTM400 range is better than that.


    • N0AGI says:
      October 6, 2019 at 11:38 am

      hi Rob, to be honest, I never ended up trying the BT capability as I never ended up purchasing the BT headset. But, knowing BT technology stack, I suspect you should not have any issues if your travel range is btwn your trunk and the driver cabin.


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