Many have downgraded from Winegard to Jack.. Just make sure you buy the model of the Jack made to fit the Winegard "mast"
Why did I say Downgrade? IN independent lab testing by another forum member and in side by side performance tests I've conducted NOTHIGN, and I mean NOTHIGN sold for RV use beat the winegard with Wingman and Sensar Pro... (What I have) NOTHING.
That said. in some locations the Jack may do better.. Here is why:
There are basically two types of antennas, Omni directional and Directional or beam (There is a 3rd type. bi-directional but the wingman fixes that)
now,, how far you can "See" (How far a station transmitter can be from you and you can still watch that station) depends on the "Gain" of the antenna, Elevation (Both transmitter and receiver) and transmission power.
YOu can not do much about elevation, or transmitter power.. But you can do something about antenna gain.
Antenna GAIN is obtained by narrowing the beam width..
Think this way.. Sit in the back of the uppermost balcony of a theater (been there.. Dang near got a nosebleed) and look at the stage... (Tiny ants running around singing "Think of me" (Phantom of the Opera).. Now get out a set of opera glasses.. The ants get a bit bigger and you can still see the whole stage (Yes I had them with me) and then some (Masonic Temple theater, Detroit, MI by the way)... Now get out something like a set of 10x Field glasses.
Finally you can see what's happening on stage, but you may not see all the stage at once (not sure, did not have my powerful field glasses with me).
(Oh, I went back and watched it again, only play I've ever paid to see twice, this time from the main floor).
Same is true of the TV antenna, works exactly like the theater.. Omin you see all around you so if you are in the middle of 20 stations, you may see all 20, out to about 20 miles that is
Jack, has a wide beam width, like the opera glasses so if you have 20 stations scattered all on one side, say 40 miles out.. You are good.. I do park in one spot where that is the case
Winegard with Wingman I'm 50-60 miles out from several, at that range tightly grouped stations, see 'em all. More or less (that is the limit of its range)
Jack only sees about 80% of 'em.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times