http://www.vk5dj.com/yagi.html
Yagi calculator I have used in the past.... Maybe I'll just make another one for the cb frequencies I want to operate on.
Yagi's are extremely directional.
Do want to beam to a specific received ?
Or send and receive in 360 deg?
With the old Antron. A 3 piece 18ft fiberglass antenna,bout $80 bucks.
I could talk talk 30 miles.
It was 50 ft up on the house peak.
My favorite radio is the Galaxy DX 959.
With soldering skills you can turn any CB into a great radio.
Better quality voltage regulator.
Better quality filter diodes and a few other tweeks.
My real question is.
Will you be communicating with other vehicles, handhelds, properties?
You can buy 5-30 watt FRS radio base stations.
And 5 watt hand helds.
And set up a pretty good system.
If privacy is key.
You'll have to go digital.
There are business bands that don't require a lisence.
The radios are more expensive.
But digital security can be priceless.