Hello Vmix community, once again i wanna ask for opinions and suggestions. I am given the tast to livestream a 3day trackday event that takes place in Serres racing circuit Greece.
I know almost everthing i need about the vmix app, i manage well with it.

The main video inputs will be go pro camera's that will be on different cars. several of them. the problem is how to connect them to my pc.

FACTS : there is no stable or reliable internet connection to the track.
Therefore i have to get a plan with high speed mobile data. i calculated that i will need about ~10gb of data to stream 3 days at 720p to facebook ( cant stream 1080p for some reason).
Streaming hours will be 10:00-18:00. So my desktop will be wireless connected to my mobile data device to the internet.

Problem number one : the track is wide so i guess i have to buy a huge wifi antenna so all go pro's can connect to another wifi spot that i will create.
i was thinking something like this? WIFI HUGE ANTENNA
So lets say all cameras are connected to a wifi spot. My place will be at the red mark. I will propably connect that wifi spot to my pc via ethernet.

Problem number two : how will i connect the cameras with vmix? NDI? Does the go pro's have ip camera or something?
I have about 340 days before the next trackday so i have plenty of time to search the solution.
Please if u can help me sort this out it would be really awesome.

And I forgot to mention the power supply requirements for the vehicles video equipments. You cannot stop a car in the middle of a race to change the battery in your GoPro or the wireless transmitter...

Powersupply isnt an issue. Its not a race event, its slighlty different. each driver competes with his own time(mostly personal time attack event) there wont be a start and a finish. i can go in do 10 laps and go out for 10-30mins-2hours then get back in.
The amount of cameras isn't standard. In cooperation with the club, most drivers have their own go pro ( or whatever else brand action cam they have ).

Sattelite connection isnt an option in Greece. No provider does that with a good amount of upload speed. They are really slow.

Could u point me out for the proffesional wifi transmiter?
I just checked that the one i posted from amazon, its range is only 183 meters long. In my pic the longest part of the track from my supposed position is 500meters away.


THANKS for ur super quick replies.

I would like to backup DWAN on his input. Wifi is not an option and Production cost for this will be very high, assuming you want professional results . You have time to do the research, but this is not really a vMix challenge, rather it is a Production challenge.

Maxi

Thanks for ur reply. My main concern is how to connect these go pro's to vmix.. i know the project has to do mainly with the broadcast setup.
And i am searching step by step to find solutions.

Yes this is also what I estimated for this project.

The Amimon Connex line of drone HD transmitters may work for you. I know you can use several of them in the same proximity and they have transmission distances of up to 1100m. I have used them successfully to do live video (no audio) from a boat to shore when webcasting waterski tournaments. They run about $1600 USD for each transmitter/receiver combo.

With wifi, money, time and some seconds of delay if you are IT it is possible. I think that is it possible with 1-2k per car.

We have one connex and for us is very bad, we are very happy with another rx/tx cost 2-3x but work really well better than a bolt 2000. But this could be a good option but is not cheap.

How you have time you can wait for freecast, this could be the best option prices/quality

try smartphone with webrtc,vmixcall...

I have been streaming car racing since 2013, and i still haven't found an affordable and reliable solution for onboard footage.
If you want to spend little and you have 4g coverage, a smartphone with webrtc or vmixcall is your simplest solution. Next weekend I am going to use that solution. But i will be using it one car at a a time.
FORGET NORMAL 2.4G WIFI... it WILL NOT WORK, trust me, I have been there and done that.. after 2 disaster races I contacted a professional company and got professional 5.8 directional point to point radios. Gopro's have very limited wifi range and slow fps anyway. You would need to get hdmi out of gopro and go to a h264 encoder that streams rtsp (least expensive is 300$). Then connect this encoder to a 5.8ghz Client radio possibly with antenna mounted on car roof. At the base station you need to put at least 2 panel antennas in opposite directions.. big omni antennas are useless.. been there, done it... And then you still wont be able to reliably get the streams from more than 2 cars, because you will start to have bandwidth problems.. wifi really is not suited for video streams, we are stretching the limits a lot. If you look in the "Showcase" subforum you will see my post with an example of my last Car race in Italy with 9 cams, all connected wireless around the track, I don't want to sound arrogant but I have certain experience.

But there could be some hope.. I have been testing this system all winter but haven't had a chance to test in a real scenario yet. It is called EZ-Wifi Broadcast , and uses raspberry PI as encoder with its optionl camera (which isn't very good, but for 30$ you can't complain, and for onboard footage it is ok). It was born for drone fpv usage, but it's the same thing to apply it on a car. For 1 car you would need 1 raspberry tx, 1 USB wifi dongle for TX, 1 Raspberry camera for TX, 1 raspberry for RX and at least 2 usb wifi dongles for rx (and panel or patch antennas for rx) . Total cost for 1 tx-rx setup is around 150$ , and you receive an HDMI 720p60 or 1080p30 image that you then need to get in you vmixpc with a capture card or usb dongle.
Read the very long thread at the rcgroups forum:
https://www.rcgroups.com...ransmission-made-easy%21