ADS-B antenna and stats – Antenna C
This is a work-in-progress and relates to this article on further developments beyond the details below.
The design is a basic 6.5-element coaxial collinear antenna with a whip, feedline and chokes and is intended to mirror Antenna B in order to ensure comparisons are equal before moving on to experimenting with various changes. There are two dump1090 stations running about 18″ apart in my loft and I wanted to compare the two to see whether there were any differences between them aside from the antenna so that I can compare changes to the antennas knowing other variables are identical (or near-identical). So I’ll run this “identical” antenna (B = C) on the second station for a week and compare data in the hope that the data are basically the same, then I can move on to making modifications to test the effectiveness.
![](http://tinab.blog/wp-content/uploads/2021/11/image-1.png)
Performance with this antenna, in summary, is very similar to Antenna B. Some stats are slightly up and some slightly down.
- See here for a stats comparison.
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