External antenna/booster for Verizon and T mobile

Doesn't enhance 4G. But works with both GSM and CDMA phones and will increase speeds and reception if your phone is HotSpot equipped.

 

The Wilson is what I use for storm chasing. It's does help but understand that it won't guarantee you reception everywhere. There has to be something there to amplify. But that particular kit is pretty straight-forward and you do need to find a good spot to mount the internal antenna that will be within about 1-2 feet of where your phone and/or MiFi device will reside while in use (while in fringe areas).

 

I have one of these units. It works very good. I have been places others have no signal, when i do.
works on both phone and air card.

http://www.wilsonelectronics.com/store/index/category/43/cradle-boosters

 

In terms of 3G networks (both CDMA and GSM) this unit has impressed us the most over the years: http://www.wilsonelectronics.com/store/display/9/38/dual-band-800-1900-mhz-mobile-wireless

With the onset of 4G of late, I see that they have gone to a cradle style. Their past performance (Wilson) already gives me a level of confidence in their new 4G boosters, but I have no independent testing to date on those cradle units. (link: http://www.wilsonelectronics.com/store/index/category/43/cradle-boosters)