[50mhz] Antenna Modeling

[Dan Schaaf]

Hi All,

I have a Diamond A504HB 4 element yagi for 6 meters. 
The manual says that it is 10.8 dbi gain.
I am not sure what to believe because that seems pretty high for a 4 element yagi with 10.66 ft length boom.

Has anyone ever modeled this antenna? Or is there anyone here who is willing to  model it? I have all of the construction details. 

I am in SW Florida and have worked as far as several JA stations with it but they were just above the noise. Last night JA6GCE was coming in and he was the strongest that I had ever heard a JA but still not moving the S meter.

Now, I have to say that this yagi is on top of a 28 ft tower and so I know that I am height limited. But I am just curious of it's real gain compared to other antennas on the market.

Dan Schaaf

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K3ZXL www.k3zxl.com
Cape Cod Instruments www.gnm-inc.com
NOBSKA www.nobska.net
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