Monthly Archives: December 2013

Antenna Patterns at NX6T

I recently used N6BV’s HFTA antenna and terrain modeling software to analyze the antenna setup at NX6T, in particular to assess the benefit of replacing both antennas on the 40′ tower (a 2 element 40M yagi and a 3 element SteppIR) with a single KT-36XA, with 5 elements of 15 and 20, and 6 on 10.

The terrain surrounding the NX6T site is shown below, with 1 mile range rings.

Range rings are 1 mile

Terrain at NX6T

In the analysis below, the antenna at 70′ is a 3 element SteppIR, to model the antenna at the top of the high tower find out here. At the other heights, the antenna is a KT-36XA, with elements as noted above.

[Note: to interact with the figure below, you need to download the Wolfram Computable Document Format plugin. It’s a safe plugin from a reputable source. I did have some difficulty with the latest version of Internet Explorer (IE 11), and there’s a fix for that here.]

[WolframCDF source=”http://n0dy.com/wp-content/uploads/2013/12/NX6TElevationPlots.cdf” width=”1200″ height=”500″ altimage=”http://n0dy.com/wp-content/uploads/2013/12/NX6TElevationPlots.png” altimagewidth=”654″ altimageheight=”361″]