[TenTec] Value of RX Only Antennas

[Jim Brown]

On 10/1/2013 1:29 PM, Rick - DJ0IP / NJ0IP wrote:
> One of the dangers when comparing trap beams to monobanders or beams like
> the SteppIR or some of the wire/fiberglass beams is, the trap beams only
> show maximum gain near the center of the bands.

The NOAX/K7LXC tests used frequencies at the center of each band, 25 kHz 
inside the band edges on 20 and 15, 50 kHz inside on 10M (considering 
28450 the center of 10M). The numbers I quoted are for the average of 
all of those measurements.

You can buy the reports on both these tri-bander measurements and the 
later vertical antenna measurements from K7LXC. They are well worth the 
money, not only because one can learn so much by studying them, but also 
because they provide an excellent BS filter when you're reading 
manufacturers' wild claims about gain. :)

73, Jim K9YC.