Distance how far is too far

I am going to Haast tomorrow, five hours drive there, I will be looking at cell phone range and coverage, broadband range and coverage and reliability, weather plays a big part here. No kidding I hear you say!
I will take my laptop and pre-paid modem and as my cell also plugs into my computer, it will be interesting to see which does what the best.
I will return....! Saturday.
The QR code I posted has not worked since I di it. Obviously  it contains too much information in wide a variety. Does this mean we have to develop something similar to texting?