Topband: New 3 el 160m yagi at 7J4AAL

[Jim Brown]

On Tue,8/19/2014 10:03 AM, Doug Renwick wrote:
> I thought the consensus now is yagi antennas on 160 don't perform well (i.e. OH8X) when compared to vertical arrays.

That is STRONGLY dependent on the height of the Yagi and soil 
conductivity around the vertical antenna.  A horizontal antenna lower 
than about a half wave is a "low" antenna, so the vertical pattern is 
compromised. On the other hand, verticals are strongly affected by soil 
conductivity -- as much as 6 dB between very poor and very good -- while 
horizontal antennas are not.  This Yagi is at almost 3/8 wavelength on 
160, pretty good, but still not great. I'd guess the gain to be no 
better than 5 dB over a dipole at the same height.

Does anyone remember this array? It's gone now, but I'd be inclined to 
do some sort of vertical array if I had the real estate with decent soil 
and the bucks.

http://nidxa.org/memberWWW/k9dx_antennas.htm

73, Jim K9YC