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  1. #1
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    Rx Antenna Issue on Black Pearl FPV Kit

    Iím a recent convert to the Multirotor fraternity Ė now experiencing the joys and thrills (and spills) of owning a DJI Phantom 2, together with a GoPro and Black Pearl FPV kit.

    I spent some time flying LoS only, in order to become familiar with basic issues like maneuvering smoothly and maintaining good control regardless of the orientation of the UAV. Not easy to start with!

    Having then attached the FPV kit Ė comprising a DJI AVL58 Tx and a Black Pearl RC801 Diversity Rx Ė I have been less than impressed with the range. I get broken transmission after only 50 Ė 100 metres and lose signal pretty much completely at 200 metres.

    I thought Iíll solve it by getting new antennae, and in researching options I think Iíve discovered the root cause. So Iím posting here to get validation before getting grumpy with the suppliers.
    If I understand correctly, various Black Pearl Models come with either SMA or RPSMA female connectors. Mine appears to have a female SMA connector on the monitor.
    P1150762a.jpg


    Now Ė I would assume that this would then require a male SMA connector on the antenna, but mine appears to have a male RPSMA connector!

    P1150763a.jpg

    Iím no electrical guru, but it would seem to me that this means Iím running with no antennae at all Ė which Iíve read tends to have a really bad impact on the transmitter. Iím hoping that because the problem here is with the receiver that it wonít have had any long term impact.

    While the rig was configured by US Hobby in Las Vegas, the Black Pearl Kit came in a sealed box, so I donít believe I can blame them for the error. I assume that I need to take it up with the manufacturer.

    Anyway Ė before I burst into howls of complaint with the suppliers I thought Iíd check with you expertsÖ Am I correct or have I missed something?

    Cheers

    Vaughan

  2. #2
    Manual Reader
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    Dec 2014
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    Pittsburgh, PA
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    I am no radio expert but my daddy always told
    me that you had to have an innie with an outie to get anything to work down there...

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