An antenna ???

[lickitysplit11111]

I noticed in the specs of a company that sells boosted antennas that one is 10 dbi the other at 14 dbi I looked in the specs of the P4P but didn't see what the stock antenna is, I'm not a scientist like some of you folks but I'm assuming thats the power of the signal its emitting ..

 

[rockos]

Send Jake with Maxxuav a message. I have the 4hawks XR arriving tomorrow from him.

 

[lickitysplit11111]

Send Jake with Maxxuav a message. I have the 4hawks XR arriving tomorrow from him.

Thanks but there's plenty of knowledgeable here that can answer this , I thought it would be in the specs online but it's not ...

 

[Older_Man]

Thanks but there's plenty of knowledgeable here that can answer this , I thought it would be in the specs online but it's not ...

Specs are on this page.
DJI Phantom 4 Pro – Specs, FAQ, Tutorials and Downloads

 

[lickitysplit11111]

Specs are on this page.
DJI Phantom 4 Pro – Specs, FAQ, Tutorials and Downloads

Yeah I seen that ,its not listed there..

 

[Older_Man]

Yeah I seen that ,its not listed there..

Really ?, I saw the specs for the remote controller and Transmitter Power there.

 

[Phantom2USA]

 

[Phantom2USA]

The previous info was given to me some time ago when inquiring of Phantom 2 vision + TX stock antennae, I never did find the stock specs.
Higher # distance & lower # wider coverage

 

[smiller]

When considering antenna changes it's important to understand the chart above. You cannot get something for nothing and a higher gain antenna achieves that gain by concentrating the signal into a narrower radiation pattern. This may result in more signal where you want it... or less... depending on circumstances.

 

[Phantom2USA]

Yep, that's what I thought too, ya either have distance or wider coverage, but not both..

 

[lickitysplit11111]

Thanks this helped me understand a little how this works....

 

[CameraMan65]

Specs are on this page.
DJI Phantom 4 Pro – Specs, FAQ, Tutorials and Downloads

Funny thing about those specs. It says DJI go 4 will work with iOS 9.0 or better... It doesn't. I have an iPad 2 and it has 9.3.5 on it. I wish I could use this iPad. Oh well...

 

[LConn]

Omni's are usually around 2.2db gain, you add that to the transmitter output for total power. But as mentioned above that doesn't mean you have the same power all around. An Omni has a pattern like a donut with almost no power where the antenna end points, it is instead all around the sides of the antenna. One aspect of this is if you have the antenna vertical you have little power if the drone is directly above you. Things like the windsurfers focus the power in a particular direction but you need to keep them pointed at the craft. The higher the antenna gain, the more narrowly focused the beam will be. 3db increase is twice the power, 6db four times, the scale is not linear.

 

[lickitysplit11111]

Omni's are usually around 2.2db gain, you add that to the transmitter output for total power. But as mentioned above that doesn't mean you have the same power all around. An Omni has a pattern like a donut with almost no power where the antenna end points, it is instead all around the sides of the antenna. One aspect of this is if you have the antenna vertical you have little power if the drone is directly above you. Things like the windsurfers focus the power in a particular direction but you need to keep them pointed at the craft. The higher the antenna gain, the more narrowly focused the beam will be. 3db increase is twice the power, 6db four times, the scale is not linear.

Wow thank you for your very detailed explanation, now it makes sense