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400m flight distance with MI WIFI repeater and reflectors

CamFlyer

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I bought a cheap signal reflector from China sold for other drones and mounted it to my Xiaomi WIFI repeater and did a quick test flight. The repeater was not aligned quite right, about 15° to the left. The last 150m I flew backwards for better reception. The Video stream was not stable and there where other glitches with the VPS and at the end my phone disconnected the WIFI !


To fly I use a Gamesir T1s connected via USB to the phone.
 

ZWActual

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Interesting video. Not bad.

Observations:
  • The repeater should be placed between you and the drone; not lateral of your position, for better reception.
  • Was the phone in Airplane Mode?
  • You appear to be screen recording and video recording which chews up bandwidth back to your phone.
  • Is your phone set to battery saver mode at 50%? Could impact/reduce wireless performance.
  • Tello battery appears to drain quickly. 20% in the first minute. Ditch the prop guards if they're on.
  • USM Modular Furniture - must be near Münsingen, Switzerland
 

CamFlyer

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The repeater should be placed between you and the drone; not lateral of your position, for better reception.
I was not shure what should be the best placement and so I decided deliberately to be on the side (90°) so my signal path is different than the one of the drone.

  • Was the phone in Airplane Mode?
  • You appear to be screen recording and video recording which chews up bandwidth back to your phone.
  • Is your phone set to battery saver mode at 50%? Could impact/reduce wireless performance.
No, no Airplane or battery saver mode active. And the screen-recording with 720p localy is no problem for the Samsung Galaxy S8.

And yes, that's exactly at the USM factory.
 

raulvolador

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I bought a cheap signal reflector from China sold for other drones and mounted it to my Xiaomi WIFI repeater and did a quick test flight. The repeater was not aligned quite right, about 15° to the left. The last 150m I flew backwards for better reception. The Video stream was not stable and there where other glitches with the VPS and at the end my phone disconnected the WIFI !
Very interesting testing, @CamFlyer

Could you share more details about that signal reflector and/or shopping link for it ?

I tried with homemade ones some months ago, but not very satisfied. See:

Here, a homemade reflector for Xiaomi repeater: WIFI reflector for improving Tello range using Xiaomi WIFI repeater

Here, a homemade reflector for Wifi+S extender: Parabolic Reflector for WIFI+S Range Extender

Best regards

Raul
------
 

CamFlyer

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Could you share more details about that signal reflector and/or shopping link for it ?
The exact offer exists anymore. Title was : XIAO MI FIMI X8 SE MI 4K A3 Drone Remote Controller Signal Booster Two Pieces Antenna Range Extender Signal Booster Accessories
I found a similar product: US $3.99 |STARTRC XIAO MI FIMI X8 SE MI 4K A3 Remote Controller Signal Booster transmitter For FIMI X8 SE MI 4K A3 Accessories-in Remote Control from Consumer Electronics on Aliexpress.com | Alibaba Group
The important features are the rubber band that make it flexible to use with different antenna sizes and even the Mi repeater 2.
 

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