Firstly, there is no such thing as analogue or digital antennas... regardless of what marketing BS may claim.
Antennas can't tell the difference between the type of signal, just the frequency bands they are designed to receive.
All caravan-type antennas are designed to work in reasonably good signal areas, so you can't expect them to be great when in marginal signal areas.
They are wideband, which is a compromise, but needed for moving to numerous locations.
Then you have vertical and horizontal polarised signals, which the antenna should be matched with for best results.
There is no magic one-antenna-does-all solution as there are so many variables with frequencies, polarisation, power levels, terrain and obstacles changing locations.
Eg: some areas use only VHF, other areas are all UHF and some areas use a mix of both.
Does your Winegard antenna have an amplifier/booster... and is it actually working?
I've seen many caravan antennas with failed signal amps, or not getting power to them and/or faulty cables and connectors, so it's possible you may just have a fault somewhere.
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