I'm not sure how much better a crank up antenna will be for you vs. what you have as I have not tried an omni-directional. Directional will always get a better signal. I cannot answer the difficulty of installation question. I can tell you from my television servicing days that most RV antennas are still designed primarily for the VHF frequencies (ch 2 -13) which leaves a lot to be desired for the UHF frequencies where all the digital stations are now. If you are always near a metro area when camping upgrading to directional would be OK. If you are over 30 miles from the transmitter you are probably better off with satellite. My solution, read more, watch less TV when camping. I do things differently when camping like identifying plants and animals, geocaching, hiking, campfire gazing vs watching tv. Feels good to get away from the normal activities of home and then appreciate home again when there.