Here the video and the result ....same place , same day,same android mobile phone
Here the video and the result ....same place , same day,same android mobile phone
That's crazy the $60 is worse than stock with reflectors
only 6 or 7 sat's am i seeing that and how is this not getting a warning from the app .
you are most likely correct i did see full bars .for kicks i went back and looked and i could not see the one . i'm glad i't not my screen.Obviously 16 or 17 sats ('1' hidden by the sat icon)
from baggood the black , but you can find them and on ebayWhere did you get the reflectors from? Just the stuff you see on eBay?
Dear friend. There are some of what you say are right. I mowed the antennas as a consumer and not as an expert. Both antennas are in my hands and advertised exactly as I tried them. They have been installed and used very well and specifically or as accurately as the manufacturer told me. Both the fpvlr and the reflectors promise and advertise that they have an increase in the range exactly as they do, so I tested them ... Those who make them have to prove some things not me.I make a pest out of myself by regularly pointing out that likely most of the boosted antennas are snake oil.
My minor was electronic engineering and I've been trained in radio and microwave.
Not one of these outfits publishes even a minimum of information to be taken seriously.
One even proudly told me they don't need to publish any stinkin specs - they rely on word of mouth from their customers.
Now - explain to me how you DON'T have any gain figures if you're claiming to improve on stock?
They don't even have antenna patterns.
So how do you know that their claims are valid? You don't.
Truth is most of their success I suspect is simple cognitive dissonance on the buyers part - I spent $250 so of course my distance must be greater - right?
Here's some facts:
By law they can't sell anything that violates FCC regs.
In the US all Dji products are at the max according to FCC specs.
Best they can hope for is to improve directionality.
Most claim to have planar panels but absolutely no way to adjust or test matching impedance.
Impedance matching is crucial to antenna performance and each of those connectors and extended pigtails connecting the antennas represent losses. There's a reason those feeds are short and to the point in the controllers.
Some units have boosters and batteries in them.
The highest power you can get legally is 4 watts. If the controller only put out 1 watt this would represent only a 3 dbi gain - assuming that the power in was sufficient to drive it to full power (remember those losses above?)
I have repeatedly asked for these folks to provide test measurements and I've been ignored.
I maintain that if you make claims you should have data to back it up.
At least the parabolic reflectors have some science to back them up.
If anyone would like to experiment with directional antennas I would suggest you look up making your own biquad antennas.
Here's a simple 2.4 ghz biquad. You can make two side by side for the Dji controllers.
I've seen plans and you should get around 10 dbi improvement from the directionality of the antenna. Of course this also means you have to be careful in positioning.
Don't take it personally. I was merely commenting so other folks can make informed decisions.Dear friend. There are some of what you say are right. I mowed the antennas as a consumer and not as an expert. Both antennas are in my hands and advertised exactly as I tried them. They have been installed and used very well and specifically or as accurately as the manufacturer told me. Both the fpvlr and the reflectors promise and advertise that they have an increase in the range exactly as they do, so I tested them ... Those who make them have to prove some things not me.
Friendly
Very informative thanksI make a pest out of myself by regularly pointing out that likely most of the boosted antennas are snake oil.
My minor was electronic engineering and I've been trained in radio and microwave.
Not one of these outfits publishes even a minimum of information to be taken seriously.
One even proudly told me they don't need to publish any stinkin specs - they rely on word of mouth from their customers.
Now - explain to me how you DON'T have any gain figures if you're claiming to improve on stock?
They don't even have antenna patterns.
So how do you know that their claims are valid? You don't.
Truth is most of their success I suspect is simple cognitive dissonance on the buyers part - I spent $250 so of course my distance must be greater - right?
Here's some facts:
By law they can't sell anything that violates FCC regs.
In the US all Dji products are at the max according to FCC specs.
Best they can hope for is to improve directionality.
Most claim to have planar panels but absolutely no way to adjust or test matching impedance.
Impedance matching is crucial to antenna performance and each of those connectors and extended pigtails connecting the antennas represent losses. There's a reason those feeds are short and to the point in the controllers.
Some units have boosters and batteries in them.
The highest power you can get legally is 4 watts. If the controller only put out 1 watt this would represent only a 3 dbi gain - assuming that the power in was sufficient to drive it to full power (remember those losses above?)
I have repeatedly asked for these folks to provide test measurements and I've been ignored.
I maintain that if you make claims you should have data to back it up.
At least the parabolic reflectors have some science to back them up.
If anyone would like to experiment with directional antennas I would suggest you look up making your own biquad antennas.
Here's a simple 2.4 ghz biquad. You can make two side by side for the Dji controllers.
I've seen plans and you should get around 10 dbi improvement from the directionality of the antenna. Of course this also means you have to be careful in positioning.
So save your money and stick with stock or at most parabolic?I make a pest out of myself by regularly pointing out that likely most of the boosted antennas are snake oil.
My minor was electronic engineering and I've been trained in radio and microwave.
Not one of these outfits publishes even a minimum of information to be taken seriously.
One even proudly told me they don't need to publish any stinkin specs - they rely on word of mouth from their customers.
Now - explain to me how you DON'T have any gain figures if you're claiming to improve on stock?
They don't even have antenna patterns.
So how do you know that their claims are valid? You don't.
Truth is most of their success I suspect is simple cognitive dissonance on the buyers part - I spent $250 so of course my distance must be greater - right?
Here's some facts:
By law they can't sell anything that violates FCC regs.
In the US all Dji products are at the max according to FCC specs.
Best they can hope for is to improve directionality.
Most claim to have planar panels but absolutely no way to adjust or test matching impedance.
Impedance matching is crucial to antenna performance and each of those connectors and extended pigtails connecting the antennas represent losses. There's a reason those feeds are short and to the point in the controllers.
Some units have boosters and batteries in them.
The highest power you can get legally is 4 watts. If the controller only put out 1 watt this would represent only a 3 dbi gain - assuming that the power in was sufficient to drive it to full power (remember those losses above?)
I have repeatedly asked for these folks to provide test measurements and I've been ignored.
I maintain that if you make claims you should have data to back it up.
At least the parabolic reflectors have some science to back them up.
If anyone would like to experiment with directional antennas I would suggest you look up making your own biquad antennas.
Here's a simple 2.4 ghz biquad. You can make two side by side for the Dji controllers.
I've seen plans and you should get around 10 dbi improvement from the directionality of the antenna. Of course this also means you have to be careful in positioning.
I've actually tested some of the parabolics with mixed results. I have one for my Phantom 4 that actually gives me consistently better range - maybe another 500-800 feet through trees and such.So save your money and stick with stock or at most parabolic?