Video - Reliable mobile internet solution for DSLR live broadcasting a wedding?

I am going to shoot a wedding. There will be activities where there will be no wifi.

Question: how can i provide myself reliable high speed wifi for broadcasting the wedding via youtube?

I usually use OBS installed on my laptop and feed video from my Canon camera into my laptop. I feed sound through wireless microphone into the laptop. OBS does the rest.

I would like to use a DSLR or mirrorless mounted on the top of a monopod or tripod. I would like to move it around as people move around.

Any advice? How should I do it?

Thanks so much!

G'day Otto

Not my area of expertise - don't need anything like OBS but ...
Q- would a USB modem using a 2nd comms channel be able to carry the extra load?

Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/

Good morning Ozzie,

Hmmm, not sure what kind of USB modem you are thinking of. Do you have a link? Thanks so much! I appreciate your help!

G'day Otto

Two things here -
a) the 4G-USB modems we have across Oz are cigarette-lighter sized devices, costing under $us40 and connected to any of the major comms providers, and
b) what I am pondering is whether 2 data streams - your current one plus the second one can transmit the large volume of data that you are wanting to work with concurrently

Many unknowns to me as it is all outside my area of experience

Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/

I tried to do this last weekend. The signal didn't support upstream at all. I had one of the fastest data plan in the USA. It may work for some but didn't work for me. WiFi signal was able to support live stream but not the phone data plan.

G'day Otto

Ah well matey ... as the actress said to the bishop 'you won't know if it works until you try it'

Phil from the great land Downunder
www.flickr.com/photos/ozzie_traveller/sets/

A good test for your cell phone internet speed is to get a copy of "Speedtest" by Ookla and install it on your cell phone. A copy is available for PCs as well as the one for cell phones. Then go to where you want to shoot and upload through the cell phone and run the test. It will find the fastest server and then test both the download as well as the upload speeds and give you a pretty good idea of what to expect. I've tried many other speed measuring programs and found this one to be the best and easiest to use.

Running Speedtest here in my studio just now, I get about 98 Mips down and 11 Mips up, which is pretty good for a 4K cell phone system. 5k isn't available for me yet, but should be significantly better than this. 

My cable internet through my LAN to my laptop is running about 200 Mips down and 12 Mips up.

The "up" speed will be the most important for your need, and this isn't likely to be better than what I'm getting. It will likely be quite a bit worse as you get farther away from the nearest cell phone tower. I can almost see the tower that serves me here (when the tree leaves have fallen) and it's about 0.6 miles away. All I can say is to go out and try taking the measurements. Then try a rehearsal of what you intend to do and see if the upload speed is adequate. I've never tried using my cell phone for a live uplink. They didn't design the internet with a high uplink speed as they expected most needs would be downlink.

Charley