i dunno much abou CB radios, but I'm wondering if its practical to sling the antenna under the car like in the groove just inside the rocker panel...
you wouldn't get very good signal TX or RX, if i have a good visualization of what your saying.
a CB radio antenna must be vertical, if horizontal you are not shooting a incorrect signal, instead your shooting into the ground and the sky, possibility you shot a hard to understand skip....the signal needs to be sent side to side, not up an down. they make antenna's however that go in all directions, known as radials. Great for "DX" or skip..
illistration for post:
a cb radio antenna to receive the best your antenna should be a full wave. 11 meters
(i think it might be 10?)
they make smaller antenna's such as "fire stick" "Wilson" but most have "coil packs" to make up for the lost antenna to lower SWR (standing wave ratio) so you dont fry your radio. your transmission (TX) will suffer of a half wave, or 1/8 wave. but you will still get out about 5-10 miles. While there are stations running 1000 watts, you can hear them for a good 25mi-50mi even 100 miles depending on land and wattage's they are pushing. you can talk back to them using about 50-100 watts.
Even though CB radio is basically "line of sight", meaning they can talk to you as long a mountain is not in the way. with watts over 5w you can power through the mountain.
This isn't necessarily WHY people Get CB radio's tweeked and get amps for power, and set antenna's 75 ft in the air at their home.
Some of them get them to receive and "shoot" "DX". you can receive DX from a good antenna, at least 1/8 wave, and a good CB, usually on Channel 6...
DX is signals bouncing off the charged ionosphere, which is charged from Sunspots, solar flares etc...
during DX you can hear California, NYC, Britain, Columbia, Jamaica and other good transmissions about 10 seconds long, sometimes longer. However, DX last for about 5-6 hours, but sometimes all day & through the night.. with people running watts, they POWER up to the ionosphere and the same power is then distributed to other states countries miles and miles away.
THE FCC makes it illegal to:
1) run power more then 5 watts on the cb bands.
2) Communicate more than 250(?) miles
3) interfere with tv's and other equipment..
< why its illegal to run watts
what the FCC Doesn't tell you is that for four states, they have ONE guy to take CB complaints.
Unless you interfere with someones tv, radio etc. your probably not going to get in trouble, because so many people run power its insane....
hope i answered a few questions you had