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Nov 10, 2015, 09:42 AM
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nonoze's Avatar
Thread OP
Mini-Review

2W 2.4G wifi booster RANGE TESTS! (Sunhans VS Wii-link tested at ground level)


Hi,

I've made 4 different range tests at ground level, using 2 different
2.4G 2W signal boosters, and the results are surprising!

2.4G signal boosters tested with their stock antennas:
- 2W Sunhans
- 2W Wii-Link XQ-02A

Quiet impressed by the Sunhans though...

Range test comparison FPV wifi booster Sunhans / Wii-link 2W (2 min 44 sec)
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Nov 10, 2015, 12:17 PM
Registered User
SeByDocKy's Avatar
Quote:
Originally Posted by nonoze
Hi,

I've made 4 different range tests at ground level, using 2 different
2.4G 2W signal boosters, and the results are surprising!

2.4G signal boosters tested with their stock antennas:
- 2W Sunhans
- 2W Wii-Link XQ-02A

Quiet impressed by the Sunhans though...

https://www.youtube.com/watch?v=RwVVoTLyghQ

Thanks for sharing ... I can't imagine such booster with a FrSky Receiver
Nov 10, 2015, 01:00 PM
Registered User
nonoze's Avatar
Thread OP
The thing that i don't understand is how 2 boosters working at the same time could reduce the range, instead of increasing it...

What kind of sorcery is that?
Last edited by nonoze; Nov 10, 2015 at 01:58 PM.
Nov 10, 2015, 02:10 PM
Registered User
Daemon's Avatar
Probably overloading the input of the 2nd booster. They're not ever meant to be use that way.
In fact, if I recall the specified input power limit for the Sunhaus amp is only 100mW.

You really should be able to get much much greater range than this. It may be suffering
from multipathing problems because either Tx or Rx (or both) antennas are too close to
the ground. Get em a bit higher, and it should reach out several km. I could get the range
you are in the video, with no booster, using regular FrSky Tx/Rx.
Nov 10, 2015, 04:02 PM
Registered User
nonoze's Avatar
Thread OP
Don't break my hopes!
I thought that improved my range from 136 meters (devo F4 stock)
to 575 meters just using a wifi booster was already a huge step!
I think i might get a really better range in altitude, but what i've read about FPV cars,
is that it's hard to get long range FPV because it's running at ground level.

Plus, all the components are kind of stuck together because of the
size of the car, and the size of the remote, i'd like a fully portable system, so it's kind of complicated to manage...
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Also i'm using only a 10db signal to feed my boosters because i've read some people have burned them using a 20db source
I might get a better range if i use a 20db source, but not for a long time though...
Last edited by nonoze; Nov 10, 2015 at 04:23 PM.
Nov 10, 2015, 04:04 PM
Registered User
Don't forget your ham license if in the USA and over 500mw.
Nov 10, 2015, 04:22 PM
Registered User
nonoze's Avatar
Thread OP
I'm living in france, where the power limit is... 10mw!

So if i have to break the rules, i would rather go big!
Nov 10, 2015, 04:22 PM
UAV Flight Operations Manager
You will get much better ground Fpv range with a Dragonlink system. Or if money is tight, go with an old 72mh radio and a Corona Rx and mKe sure your Rx antenna is held straight up and as high as it can go (inside a flexible plastic straw, normally). I got 1500 feet WITH a huge office building between me and my Fpv Traxxas Emaxx with that system .
Nov 10, 2015, 04:29 PM
Registered User
nonoze's Avatar
Thread OP
Quote:
Originally Posted by philthyy
I got 1500 feet WITH a huge office building between me and my Fpv Traxxas Emaxx with that system .


I want that!!!

Dragon Link is for the controller, but what about the video?
Right now i have a 5.4G 2W Thunderbolt, and the range is also
550 meters, then, it's snowing!
What kind of video tx/rx would you suggest me?
Nov 10, 2015, 07:22 PM
UAV Flight Operations Manager
1 watt 1.3ghz Vtx with good dipole and a Yagi on the Vrx. You can buy these antennas from Dragonlink. Way WAY better performance for ground Fpv than 5.8ghz.
Nov 10, 2015, 07:26 PM
A man with too many toys
2W 2.4G is illegal just about everywhere. That much power may wipe out home WiFi networks for a good distance.


.
Nov 10, 2015, 08:10 PM
Registered User
Team White Moose longrange (3 min 21 sec)
This is my plane with FR sky And 1 W booster mounted. Flew 7 km one way with no problem
Nov 10, 2015, 08:24 PM
Registered User
Daemon's Avatar
Quote:
Originally Posted by oyaha86
https://www.youtube.com/watch?v=c3szeDcOins This is my plane with FR sky And 1 W booster mounted. Flew 7 km one way with no problem
The challenges and capabilities of a ground vehicle cannot be extrapolated from anything flying.
Ideally you want a control system and video gear that can handle non-LoS operation much
of the time. 2.4ghz RC and 5.8Ghz video are not suited to either. That said, he should
have been able to go further with his runway test.
Nov 11, 2015, 03:24 AM
Registered User
nonoze's Avatar
Thread OP
You've conviced me, i'll go for the dragon link + 1.3G for the video (1W Lawmate V2 tx/rx)
Hopefully 400€ later, i'll get a better result...
Nov 11, 2015, 05:34 AM
A man with too many toys
Quote:
Originally Posted by nonoze
You've conviced me, i'll go for the dragon link + 1.3G for the video (1W Lawmate V2 tx/rx)
Hopefully 400 later, i'll get a better result...

I tried a 1W Lawmate transmitter last summer and it burned out after a few flights. Not impressed with the quality of their products.

I replaced it with a RMRC transmitter that has better range and has not given me any problems.
http://www.readymaderc.com/store/ind...roducts_id=922

.


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