I have the Verizon 2200 MIFI unit and it only has the CHARGE port on it...
I set it in the WILSON SLEEK Cradle all the time here... This does not require an antenna connection and uses close proximity to utilize the embedded antenna panel in the cradle holder. Doing this gives a bigger area outside my popup where I can engage the Mifi unit. I can get a good 100-feet plus radius around my patio area with my WILSON antenna on the edge of the popup Trailer..
I also can use the cradle for my cell phone and you sure can see the presence of the WILSON outside antenna just getting the cellphone close to the back of the cradle. The bars jump up big time...
I can also have the Verizon MIFI unit sitting in the WILSON Sleek cradle in the truck with theoutside antenna and can use the mifi unit going down the road giving us internet for the tablets etc while onthe road. This does run into dead spots however where my cellphone doesn't... Cell Phone must have a better front end the mifi 2200 unit does..
I can actually see a better signal inside the POPUP trailer if I have the cradle turned on with nothing in its cradle. The cradle holder broadcasts into the trailer somewhat.
My 2200 MIFI looks like this...
You can see the charge cable on the front shown here...
My 2200 Mifi only works on 2G/3G networks. Not enough throughput speed to do any downstreaming - Only good for low speed Internet connections. I only have a 3GB dataplan per month for this unit..
Folks using the JETPACK Series seems to do pretty good downstreaming things.
I suspect all of the Antennas you are talking about for these units will use the WILSON SLEEK idea of close proximity - no actual antenna connection.
Roy Ken