[TowerTalk] M2 40 meter Yagi

[Robert Harmon]

I agree Paul.   Better than denying the graph.  That makes me wonder, hmmm what are they trying to hide..............


Bob
K6UJ




> On Oct 13, 2020, at 1:02 PM, Paul Christensen <w9ac at arrl.net> wrote:
> 
>> "If I were the manufacturer, you would not see me publishing a graph like
> you want.  There are too many installations that are far removed from what
> the manufacturer can do to produce the graph."
> 
> OTOH, to cover yourself as a manufacturer, the SWR graph can be expressed as
> "typical" in free space.  Or, state that the graph is based on predictive
> modeling.  At least this gives the prospective buyer some idea as to SWR
> across the band. 
> 
> N4CC and I use M2's full-size 4 ele. 40m model.  Being an OWA design, SWR is
> less than 1.5:1 from 7000 kHz to 7300 kHz with the inner director
> functioning to optimize broad-banding rather than optimized for gain.  
> 
> Paul, W9AC
> 
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