The high Q of the antenna coil is one part of the reason this antenna performs extremely well. The High Q coil means when the antenna is tuned to resonant operating frequency, all off center frequencies (noisy stuff) are reduced and the center frequency is stronger entering the receiver. That’s the trick, having a High Q coil and by using the right coil length and diameter, the proper shunt coil for impedance matching, and good vehicle bonding technique.

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Speaking of Ground, your mobile vehicle is not all connected together, electrically, that is. All body panels are painted then bolted together. From a DC continuity stand point, just because the vehicle lights work, does not mean you have a good RF bond on the vehicle. “Bonding” is a must for any HF installation on a vehicle.

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The other side of having a High Q coil is it can couple much easier to it’s environment. As the Scorpion Antenna moves down the road there are all kinds of objects that enter it’s near field signal and become coupled.

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Objects can be other vehicles, trees, light poles & terrain. All of these things will effect the resonance of the operating frequency and will be seen in an VSWR change. And this does what? This means all the variables that define an antenna become dynamically changing. The High Q coil on the plus side means the swings in values have a “sharp” time impact and come and go quickly. That’s not a negative Q factor but a positive Q characteristic on side of performance.

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The above is what we have experienced over the years using our antennas in a mobile environment 7 days a week.

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Reviewing all the products in the Mobile group will explain some of the differences in design considerations. Review the other groups of antennas will give even more insight on performance and why we have different models. Not any “one” antenna covers all design considerations. It’s a compromise of how we adapt our High Q coil and manufacturing construction techniques that makes best fits for performance with Customer needs.