The reference to Cecil's web site is VG if you do not want to use a
tuner. Cecil does a great job with tuning stubs. I use a tuner.

Some have stated that multiples of 1/2 wavelength can produce RF in the
shack. In 50+ years I have not experienced this. I may be JUST LUCKY!

Do you plan on using a tuner?

Rockinghorse Winner wrote:
Ham op writes:



My installation is as follows: 1) 600 ohm open wire line [tuned of
course!] from the antenna to a protected [from WX] area under the sun
porch. There I simply connected 450 ohm ladder line to the 600 ohm line
for the run into the house. [450 ohm line has increased losses in bad
WX]. As mentioned in another response, I run the 450 ohm line at right
angles over metal structures. I keep the line a least 6 inches from
pipes, heating vents etc and twist the line one twist every three [+/-]
feet.


I run 1 KW 80 through 20 meters with NO interference or RFI in the
shack. This computer is located 3 feet from the amplifier and has no
adverse effects from the amplifier. BTW, my station is grounded
[earthed] IAW electrical code.


Are there any lengths for the xmission line one should avoid when feeding
different types of wire antenna?