Transfer speed for video transmitter and reciver.

[dr_serious]

I'm looking up some info for making my FPV plane. Then i saw i have to buy a separate screen to view the revived camera images. There are a few RCA to USB converters but the quality seems at the lower side.

Now my question: how to know witch max transfer speed from transmitter to receiver you can get. I can imagine that the speeds are different at every distance, but i saw at various site the never talk about these speeds and found it a bit weird.

I had this transmitter and receiver in mind:
http://shop.righthere.nu/fpv-transmi...prod_1155.html

I would be very impressed if this receiver can send a full quality 1080p image (Go Pro) with no lag from a mile away to you goggles or a screen.

I ask this question to know later on that i should buy a cheap 7 inch screen or a usb converter to fly with those "bad" quality images. I wont use these images to record, just looking for the cheapest and highest quality way.
(I have a laptop but i dont have a screen and a battery...)

[Hans]

There's always latency/lag. Even overseas militairy operating drones have it.
There are cables for sale and you need a little free magic to get a GoPro recording and using live-view. (until your batt. runs out...)
The price for an HD-transmitter is roughly two human kidneys and a fullsize Wagyu.
Don't hamper with a screen, save up for goggles.

[dr_serious]

Anyway I find it weird they try to sell electronics with so less information about the transfer speeds.
I'm also not buying the goggles, they seem very over priced to me. You probably don't see the difference in quality with your laptop or goggles.

[ssassen]

I think you seriously need to read up on things prior to posting such questions.

[SENTRY]

If you want to fly with a screen that's fine - do not worry about the speeds - it's a non-issue. Getting a 10" monitor used is how many people start bc they are cheaper than goggles. Just be prepared to shield it in some way from the glare of the sky/sun. For example - some people do things like this.



No you will not be viewing it as 1080 or anything close - not in real time. Just go to the video threads to see what the transmitted image looks like. When you see "HD video" it's not what the pilot actually sees at the time - that footage is coming from an aditional onboard camera.

[IBCrazy]

I'm looking up some info for making my FPV plane. Then i saw i have to buy a separate screen to view the revived camera images. There are a few RCA to USB converters but the quality seems at the lower side.

Now my question: how to know witch max transfer speed from transmitter to receiver you can get. I can imagine that the speeds are different at every distance, but i saw at various site the never talk about these speeds and found it a bit weird.

I had this transmitter and receiver in mind:
http://shop.righthere.nu/fpv-transmi...prod_1155.html

I would be very impressed if this receiver can send a full quality 1080p image (Go Pro) with no lag from a mile away to you goggles or a screen.

I ask this question to know later on that i should buy a cheap 7 inch screen or a usb converter to fly with those "bad" quality images. I wont use these images to record, just looking for the cheapest and highest quality way.
(I have a laptop but i dont have a screen and a battery...)

I would be willing to bet Sander or I could certainly get that transmitter to send HD without any problem. The RX might take some work to increase the bandwidth, but it could be done. unfortunately the range would be horrible due to the high bandwidth.

However, you will not be transmitting 1080P. You will be transmitting VGA analog video. The latency is consistent. Distance makes no discernable difference. (ok at 100 miles out you might get a 1uS lag).

Remember: You can buy good or cheap. Pick one.

-Alex

[dr_serious]

I would be willing to bet Sander or I could certainly get that transmitter to send HD without any problem. The RX might take some work to increase the bandwidth, but it could be done. unfortunately the range would be horrible due to the high bandwidth.

However, you will not be transmitting 1080P. You will be transmitting VGA analog video. The latency is consistent. Distance makes no discernable difference. (ok at 100 miles out you might get a 1uS lag).

Remember: You can buy good or cheap. Pick one.

-Alex

Thx for the answer alex, i probably will pick the cheapest one because im still a student

I saw that the RCA connector (the connector from reciver to the screen) has his limits to send data. So i thought the expensive goggles aren't better quality because of the connectors limit (they only block the light out very well) so thats why i think its better get a USB converter (RCA to USB) and view the images on laptops screen because at the end the image quality wont be that of a big difference and its only $20. If some one of you guys can confirm this "theory" it would help a lot

If you want to fly with a screen that's fine - do not worry about the speeds - it's a non-issue. Getting a 10" monitor used is how many people start bc they are cheaper than goggles. Just be prepared to shield it in some way from the glare of the sky/sun. For example - some people do things like this.



No you will not be viewing it as 1080 or anything close - not in real time. Just go to the video threads to see what the transmitted image looks like. When you see "HD video" it's not what the pilot actually sees at the time - that footage is coming from an aditional onboard camera.

Yeah i saw alot of planes with a go pro and a cheaper camera, one for recording and one for FPV.
Thx, I'll go check out some more videos

I think you seriously need to read up on things prior to posting such questions.

Thats why its called a forum, to discuss questions even stupid questions. The time you typed this answer you could have posted something useful. Go join the politics whit your great ideas!

[londonguy]

Forget the USB capture card, the latency is terrible and it's not possible to fly like that, trust me I tried.
Many people fly with a screen but you need a good bright one and you need a hood. to cover the light.

Goggles are still the best.

And in terms of transfer "speed"... I think this is a real simple one. These are analog transmitters/receivers, they don't have a data rate. They will have a frequency bandwidth which ultimately determines how much actual information can be sent but its not important because you aren't sending a digital signal. That's why it's not listed.

[dr_serious]

Forget the USB capture card, the latency is terrible and it's not possible to fly like that, trust me I tried.
Many people fly with a screen but you need a good bright one and you need a hood. to cover the light.

Goggles are still the best.

And in terms of transfer "speed"... I think this is a real simple one. These are analog transmitters/receivers, they don't have a data rate. They will have a frequency bandwidth which ultimately determines how much actual information can be sent but its not important because you aren't sending a digital signal. That's why it's not listed.

The point is by just saying "the usb converter will not work" isn't enough. I totally don't know any of you guys nor your knowledge about pc's. Maybe you have a slow computer or your using the wrong program to view the images. I saw on another forum a video of a guy filming the differences between the lag of a seperate screen and a usb converter (easycap) with no noticeable difference in lag. Some Xbox users use this usb converter also to play games on there pc's screen with almost no lag...

thx for the answer.

[SENTRY]

YES you can use the easycap- YES it works and YES some people have used it. NO it is NOT recommended. What happens when a computer gets confused on processing? What will you do when you get a blue screen of death and your plane is5 miles away? What will you do when your computer decides to reboot?

If you want to fly with ascreen - GREAT. DO NOT FLY WITH A LAPTOP. You have been warned.