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Dual Antenna Within Range Extender

Discussion in 'Phantom 2 Vision + Discussion' started by mattparker, Nov 19, 2014.

  1. mattparker

    Aug 8, 2014
    Likes Received:
    I was recently told that the two antenna within the PV2+ Range extender were NOT both receiving antenna... that one transmitted the video signal to the phone/tablet. Pretty sure that is not correct but thought I would check here. In the attached image, I have marked the antenna ports A and B. Both Rx? If not, which is which?

    Edited. Thx.

    Attached Files:

  2. justin00

    Sep 19, 2014
    Likes Received:
    Thats what I assumed. People said there both for diversity..

    I no with the RE it connects to Phantom.. and phone connects to RE.. which is why I thought there diff antennas..

    People spend $100s upgrading both antennas and I doubt they would uf my/your theory was right.

    Anyways I did testing using my amp and I believe i'm wrong!! Lol

    They both seem to be for the phantom/phone to do diversity.. as everyone said..

    Anyways do some testing of your own.. and check it out. Perhaps you'll find something...

    *edit* reread your post.. what do you mean transmit to remote?? The remore just TX to phantom on 5.8gh... RE is 2.4ghz

    My theory was 1 to Phantom and 1 to phone.... diff to what your asking.. sorry on train I should read closer nxt time
  3. ToThePoint

    Jun 4, 2014
    Likes Received:
    Antwerp, Belgium
    The wifi uses the mimo technology.
    That means basically the system scans the 2 antennae and picks that one out that has the best rx/tx.
    On the wifi extender people use a directional antenna for range and a onmi directional for close by operations.
    In the bird you have the same 2 antennae that can be seen true the battery bay.
    I currently hold the distance record for a V+ ( flytrex ) with only 1 upgraded antenna on 2.4Ghz and one on 5.8Ghz.
    The 2 upgrades were soldered directly to the coax that connects either to the 5.8Ghz RX and 2.4Ghz wifi.
    That to minimize loss and weight.
    Most use a adapter coax with rp-sma connector witch means you have to use a rp-sma connector on the new antenna also.
    Thats ok when testing out different antennae but i clearly made a choice after extensive experimenting.
    You don't have to believe me, experimenting is fun so knock your brains out wile pondering.
  4. PVFlyer

    Jan 27, 2014
    Likes Received:
    Hong Kong
    RE700 range extender is basically a Wifi repeater supporting 802.11N MIMO. P2V+ aircraft Wifi is a typical 802.11N MIMO AP with hidden SSID. MIMO (Multiple-Input Multiple-Output) means both antennas (transceivers TX/RX) transmitting and receiving 2.4G Wifi signal but at different time interval. A key drawback of repeater is cutting the bandwidth at least by half.