About keeping that 'J'-pole away from things, in the clear.
It isn't just a 'J'-pole that benefits from that, but all antennas. The 'classic' radiation patterns are for antennas not close to things which can affect how it radiates. May not be much, or a noticeable difference in that pattern, but it is affected. So is the input impedance of an antenna, which can make a difference in what you hear, and how people hear you.
You've already made the biggest 'jump' in performance, so if the thing were moved outside the differences won't be as 'huge' as what you've already seen. But, there really would be some differences.
Good for you!
- 'Doc
(At VHF/UHF, higher IS better.)
It isn't just a 'J'-pole that benefits from that, but all antennas. The 'classic' radiation patterns are for antennas not close to things which can affect how it radiates. May not be much, or a noticeable difference in that pattern, but it is affected. So is the input impedance of an antenna, which can make a difference in what you hear, and how people hear you.
You've already made the biggest 'jump' in performance, so if the thing were moved outside the differences won't be as 'huge' as what you've already seen. But, there really would be some differences.
Good for you!
- 'Doc
(At VHF/UHF, higher IS better.)