[Elecraft] OT:. G5RV's

[Jim Brown]

On Thu,8/4/2016 4:31 PM, Walter Underwood wrote:
> There is one efficient way to broaden an antenna’s frequency range—lower the Q. That is usually done with large-diameter elements. You can cover all of the 80 meter band with reasonable SWR using a “cage dipole”. That is what they do at W1AW. At VHF/UHF, you may see bowtie antennas, which are also low-Q.

Exactly right.  I've used that technique on my 160M Tee vertical.

On Thu,8/4/2016 4:37 PM, Elecraft K3 wrote:
> Recently I have gotten into building no compromise rotatable dipoles.  By no compromise I mean full sized monoband rotatable dipoles - no traps, coils or cap hats 1/2 wave off the ground in free space.  These are relatively easy to build without a huge tower if you keep the weight down.  That’s not too hard to do without a boom to support the parisitic elements.  Great bang for the buck.

Exactly right -- height matters, and 1/2 wave is an excellent height for 
any dipole. I have two half wave fan dipoles for 80 and40 at right 
angles, up about 140 ft. Same idea, but  organic supports (redwoods). 
:)  Nothing's free though -- tree climbers cost money, and so does 130 
ft of tower, safely installed. :)

73, Jim K9YC