OK, bear with me here, I'm no wizz at mobile comms. I'm pretty pc savvy but mobile stuff is not my strong point;

I live in a part of NZ which I believe is not covered by the RBI. I'm confused as to what the RBI actually does for mobile broadband other than upgrade cell towers.

I am in the Marlborough Sounds (South Island) and can get a cell signals to the coast of Wellington (North Island). But I can't get any sense out of the telcos as to weather or not I can get mobile broadband as my address apparently does not exist (boat access only property, no postal address, so their address finders do not work) and therefore apparently the place also does not exist. Logical apparently?

So where I'm at now?  I have a yagi antenna set up but need a smartphone or mobile modem to connect to it. I have done this with a telecom modem and it works, but is not great. I'd like to try with vodafone but it seems devices with external antenna ports are few and far between.

Can anyone suggest the next step to test/trial a vodafone connection? Phone/modem model suggestion? Or is there a device I can use to test the Vodafone signal with the yagi? Can I use the Huawai modem I use to connect with telecom but with different settings to try to connect with vodafone or is the hardware just not compatible?

Also, how would the RBI affect this? At present it seems there is a 4gb cap on mobile broadband, but under the RBI the caps seem higher, is this correct or am I interpreting this incorrectly?

Any help would be much appreciated :-)