[TowerTalk] HyGain And Cushcraft

[Joe Subich, W4TV]

On 2026-04-15 2:15 AM, Jim Brown via TowerTalk wrote:

> Old hands here can probably tell us who did those two designs. They
> were the AV-series and R-series.
The R-series verticals were designed by W1JR at the original Cushcraft.

The AV-series were an adaptation of the W1JR design by "Hy-Gain" after
both were acquired by MFJ.

73,

    ... Joe, W4TV


On 2026-04-15 2:15 AM, Jim Brown via TowerTalk wrote:
> On 4/14/2026 10:11 PM, David Gilbert via TowerTalk wrote:
>> Hy-Gain or Cushcraft antenna anymore when there are more modern 
>> designs available?
> 
> Both companies made center-fed loaded multi-band HF dipoles that tests 
> by N0AX and K7LXC c. a. 2001 showed to be excellent performers. They do 
> not require radials. Their tests were done with all antennas mounted at 
> ground level.
> 
> About ten years ago, I published an extensive modeling study showing 
> that performance of these antennas benefits from being mounted on the 
> non-conductive roof of typical residential homes. The improvement is for 
> two reasons -- reduced coupling to lossy earth under the antenna, and 
> lowering the vertical lobe by the increased height the antenna's current 
> maxima.
> 
> Old hands here can probably tell us who did those two designs. They were 
> the AV-series and R-series.
> 
> http://k9yc.com/VerticalHeight.pdf
> Slides for talks at Pacificon and Visalia
> 
> http://k9yc.com/AntennaPlanning.pdf
> Text version for NCJ, which was prepared by the editor but which ARRL's 
> graphics department decided was too much work. It included a companion 
> study on the height of horizontally polarized dipoles.
> 
> 73, Jim K9YC
>