Wait, wait! It's my turn to try:
"It's crackers to slip a rozzer the dropsy in snide."
There. Is that clearer now?
About the longest CB antenna you'll see on a (moving) vehicle is the old 108" whip -- the kind that usually has a big spring mounted at the bottom and no loading coils anywhere. That's a 1/4 wave antenna. Anything - ANYTHING - shorter than 108" is provided with a coil someplace in the antenna to make the electrical characteristics of the antenna longer than the antenna really is. So, for instance, while it might be possible to make the antenna "act" as if it is a full wave long (11 meters, or about 36 feet), it's a trick done with loads to change the actual length into virtual length. There are some advantages to having a longer antenna -- but there are some DISadvantages to having loading coils in an antenna, so a "full wave" antenna that isn't literally a full wave long -- isn't necessarily better than a shorter antenna with no loading coils.
I mentioned guy wires only to point out that a long antenna isn't very stable when mounted on a moving vehicle -- so some stability-enhancing critters, such as guys, would be necessary. That guy wires are hard to keep attached to the ground when the vehicle is under way --- was my point. Non-guyed antennas do exist, for sure -- we've all seen tall poles that aren't guyed. They commonly have big structures holding them in place -- like a big-ass lump of concrete buried underground, to which the pole is firmly attached. Back we go to the difficulties of the real world -- having an 8'x8'x'8' cube of concrete under your RV will no doubt make for challenging handling and poor fuel economy. If the RV is parked, on the Salt, for instance, the BLM would like be upset by the equipment you'd have to bring in to install that hunk o' cement.
Back to real work for me -- gotta write some commercials. Have a nice day, ladies and gentlemen.
