wifi amps?
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wwwcomthis
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Has anyone added wifi amps to thier controller? i'm still researching the controller to know which antenna is for wifi and which for video...1 amp or 2?

2016-11-2
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Aardvark
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One for transmit and one for receive I think.

You shouldn't really need anything other than stock antenna unless you plan on flying big distances, remember you're limited by the battery as to how far you can go.
2016-11-2
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wmcvey
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The P4 doesn't use wifi. It uses Light Bridge and it's all download to the RC, so there's nothing to boost.
Except for maybe the RC control signal, and I don't think that makes sense on anything but a P3S. Unless your going to do a battery mod to the AC first.


2016-11-2
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wwwcomthis
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Aardvark Posted at 2016-11-3 07:23
One for transmit and one for receive I think.

You shouldn't really need anything other than stock a ...

I'm trying to achieve high penetration not distance. I've seen it done, but they won't give it up. The PH4 uses an integrated wifi/rc signal, that runs at 2.4ghz. (my research so far)Somehow? they use this as one signal,even though it has two antennas.  IDK  I think I will just attach 1 amp to each side, power them from the car and see what happens????? Thanks for your interest, if you seen what this setup can do , you would be amazed.
2016-11-4
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Geebax
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wwwcomthis Posted at 2016-11-5 08:57
I'm trying to achieve high penetration not distance. I've seen it done, but they won't give it up. ...

As already stated, the Pantom 4 does not use WiFi for anything. It is a proprietary RC control signal and the video feed coming back from the aircraft is Lightbridge.
2016-11-4
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Aardvark
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wwwcomthis Posted at 2016-11-4 21:57
I'm trying to achieve high penetration not distance. I've seen it done, but they won't give it up. ...

Let me know how you get on then, might be interesting to see what can be achieved.
2016-11-4
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2016-11-5
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Turbomania
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Geebax Posted at 2016-11-5 06:27
As already stated, the Pantom 4 does not use WiFi for anything. It is a proprietary RC control sig ...

Lightbridge is 2.4 Ghz Wifi
2016-11-5
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wmcvey
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Turbomania Posted at 2016-11-5 11:22
Lightbridge is 2.4 Ghz Wifi

Not really, it's a proprietary type of wifi, not true wifi. True wifi uses the IEEE 802.11 protocol, Lightbridge does not. True wifi is a two way communication, Lightbridge is only a one way downlink from the AC to RC.
2016-11-5
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Turbomania Posted at 2016-11-6 02:22
Lightbridge is 2.4 Ghz Wifi

The only commonality between Lightbridge and WiFi is that they both share the same frequency.
2016-11-5
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Aardvark
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Lightbridge also takes care of sending control signals back to the aircraft. So it is a two way thing.
2016-11-5
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Kneepuck
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Check ebay for amplifiers in both 2.4ghz and 5.8ghz.  I got a bi-directional  5 watt amp for about 59.00 there.  
2016-11-5
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wmcvey
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Aardvark Posted at 2016-11-5 17:49
Lightbridge also takes care of sending control signals back to the aircraft. So it is a two way thin ...

No not correct, the RC control signal is around the same frequency but is completely a different system. Lightbridge is solely a down-link of video and telemetry to the RC, it does NOT send any control signal to the AC.
2016-11-6
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Aardvark
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wmcvey Posted at 2016-11-6 18:37
No not correct, the RC control signal is around the same frequency but is completely a different s ...

Granted I'm no expert, but was working off DJI's own description for their 'Lightbridge 2' system:-

"Aircraft and camera control signals are also transmitted over Lightbridge 2 at lightning fast speeds, giving you smooth,

responsive navigation as you fly or direct your camera."

Extract from Here
2016-11-6
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wmcvey
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Aardvark Posted at 2016-11-6 14:34
Granted I'm no expert, but was working off DJI's own description for their 'Lightbridge 2' system:- ...

That's Lightbridge 2, not what the P3A, P3P or P4 have.
2016-11-6
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Aardvark
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wmcvey Posted at 2016-11-6 21:35
That's Lightbridge 2, not what the P3A or P3P have.

And from Phanton 3 Pro

"INTEGRATED DJI LIGHTBRIDGE
Enabling incredibly long range and live HD video stream from your camera, DJI Lightbridge is built into both the remote and the Phantom 3 itself. These two parts work in tandem to ensure a continuous link between you and your Phantom 3. Powerful communication signals slice through most environmental interference, giving you precise, full control and information from the aircraft at amazing distances*.

Source Here
2016-11-6
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wmcvey
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Aardvark Posted at 2016-11-6 16:48
And from Phanton 3 Pro

"INTEGRATED DJI LIGHTBRIDGE

Yes that's normal Lightbridge in the P3P, it doesn't send control (stick input) to the AC. You're reading too much into this one paragraph from a promotional page. Maybe one of the DJI rep will see this thread on Monday and comment, then you can put this out of your mind that Lightbridge in the P3P/P3A or P4 transmit stick control to the AC.
2016-11-6
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Aardvark
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wmcvey Posted at 2016-11-6 21:59
Yes that's normal Lightbridge in the P3P, it doesn't send control (stick input) to the AC. You're r ...

I see the term 'lightbridge' to be the name given to the transmission technology used by the P3A, P3P & P4 range of machines. Not specifically to the streaming video channel from the aircraft. This must interact with the control system to negotiate which channels each will use.

Can any of the DJI moderators provide any clarification on this, it doesn't seem to be too well documented ?
2016-11-7
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Turbomania
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2016-11-10
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Turbomania
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wmcvey Posted at 2016-11-6 04:28
Not really, it's a proprietary type of wifi, not true wifi. True wifi uses the IEEE 802.11 protoco ...

Really. This WiFi amp works very well. how is that ??
  http://www.rflinx.com/products/amplifiers/2400/lt/
2016-11-10
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Kneepuck Posted at 2016-11-6 10:49
Check ebay for amplifiers in both 2.4ghz and 5.8ghz.  I got a bi-directional  5 watt amp for about 5 ...

Control and Image are transmitted and received @ 2.4 ghz, not 5.8
2016-11-10
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wmcvey
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Turbomania Posted at 2016-11-10 04:54
Really. This WiFi amp works very well. how is that ??
  http://www.rflinx.com/products/amplifiers/ ...

Because an amp doesn't care about a protocol, it just boost a signal within a frequency range. It's going to amplify any signal within it's operating range, bottom line. And yes it would help with Lightbridge also, as most good amps are bi-directional it would boost the incoming signal if it's on the wifi band, which Lightbridge is. So we agree with that issue. The two points I was trying to make are first Lightbridge is not true wifi as it doesn't follow the IEEE802.11 protocol, and second is that Lightbridge in the P3A/P3P or P4 doesn't send control signals to the drone, it's for image and telemetry only. Control is via RF on the 2.4 GHz band, but it's not using Lightbridge. Just normal RF like all other UAV's.
ps: I hope your not buying a $360. wifi amp for you setup, that's way out there.
2016-11-10
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Turbomania
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wmcvey Posted at 2016-11-10 23:36
Because an amp doesn't care about a protocol, it just boost a signal within a frequency range. It's ...


Lol, I have 2 of them amps :O  They work very well !!  What's an extra $800 for amps....
J/K  They can be had for about $125/150 a pair as new old stock. They were the $hit is there day, just can't meet todays higher data rate. That aspect doesn't matter for our use.
Sorry if I came across as a douche... It sounds like you know your Lightbridge better than me.
I just see so many people assume it can't be amped because it's  "Lightbridge"
We have some pretty crazy set up's over on Phantom pilots..


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2016-11-11
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Kneepuck
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Turbomania Posted at 2016-11-10 05:02
Control and Image are transmitted and received @ 2.4 ghz, not 5.8

The Standard uses 2.4ghz for the video dlownlink and 5.8 ghz for control signal.
2016-11-12
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Turbomania
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Isn't this the P4 forum ??
2016-11-12
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