In low-lying areas or where the altitude is low the trick is to try to raise your TV antenna as high as possible to improve the signal quality.
Fitting a pipe section for elevation is never a bad idea, get it as high as you can. If in the case of using a satellite dish then your only obstacle really is trees or clouds and we know there's not much we can do about the latter, so make sure it's not obstructed when you park up for the night.
If you are not using an omnidirectional antenna, you may need to do a little testing of a few different locations until you find the best position with the right results for your Directional Antenna. Winegard TV antenna are currently the best performing available on the Australian market.
A helpful tip is every time that you change location and settle run the channel scan to see what channels are picked up and make a note each time.
In the case of those of you travelling with flat antennas try to fix it temporarily while you are running the scan. Use some adhesive tape to secure it as it's better than someones shaky hand and will give you an accurate reading, for many, it's just a case of patience and re-adjustment, and you'll figure it out in the end.
But as a rule-of-thumb decide before you head out as to what is most important as far as priorities are concerned. Scenery or connectivity.
Maybe compromise with scenery in the daytime when there are things to do outside the RV and location in the evening when it comes to wanting to watch the TV and or connect to the internet, as low lying valleys surrounded by trees are not an aerials best friend when it comes to maximising your TV signal
Also to avoid fitting a second antenna, go to your local dealership and ask for a TV antenna rotator, this device controls the direction of the antenna, saving you the hassle until it locates the channels, it's a must-have travel gadget especially after a long drive.