The sensar IV needs 16" of clearance to install so be sure to take some good measurements before you buy it... I'm going to measure mine to make sure it clears the A/C... Right now mine doesn't have an antenna at all, so I've been poking around to see what works, but like most things everyone says the one they bought "works great" so who really knows what does or doesn't...
But the winegard has the complete setup, antenna, mast and mount where the Jack is just the head unit, so the choice gets easier for me...
A local RV store had both setup in-store and quite frankly the Jack looks like cheap plastic... I have concerns about cheap plastic lasting any length of time on the roof of an RV in the sun... both were showing a local channel (same channel) and the TV's 10" were in a case so you couldn't change the channel and the channel it was on had a tower about less than 10 miles from the store so I would suspect they would both work fine...
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