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So we test a mobile antenna on the "test range" without the mobile? I can only imagine the variables in your test with whatever replacement ground plane you used. Either way it makes no difference in your ability to turn the antenna in it's mount to identify where this gain comes from in your cap hat. If changing the hat to make it asymmetrical increased the gain, you can be sure the pattern it produces is also slightly asymmetrical.

With respect to getting your elbows dirty to come up with real results, they can be just as inaccurate if you don't account for every variable in your test. For example you feel the only way to test antennas is by field strength. If you're talking about a simple RF detector across a meter movement a few hundred feet away, I disagree. There are plenty of antennas that will produce similar field strength readings on this device and have drastic differences out in the distance where the fringe zone is.

These differences will be smaller when comparing similar 1/4 wave antennas however, the nearby field strength meter can still miss modifications that would increase your coverage area. I do agree that your cap hat will handle extreme power before it bursts into a corona arc, but I bet it will happen right where I mentioned and that there is no advantage to spacing the loops one over the other with a gap.

<blockquote data-quote="Shockwave" data-source="post: 265258" data-attributes="member: 10882">So we test a mobile antenna on the &quot;test range&quot; without the mobile? I can only imagine the variables in your test with whatever replacement ground plane you used. Either way it makes no difference in your ability to turn the antenna in it&#039;s mount to identify where this gain comes from in your cap hat. If changing the hat to make it asymmetrical increased the gain, you can be sure the pattern it produces is also slightly asymmetrical.With respect to getting your elbows dirty to come up with real results, they can be just as inaccurate if you don&#039;t account for every variable in your test. For example you feel the only way to test antennas is by field strength. If you&#039;re talking about a simple RF detector across a meter movement a few hundred feet away, I disagree. There are plenty of antennas that will produce similar field strength readings on this device and have drastic differences out in the distance where the fringe zone is.These differences will be smaller when comparing similar 1/4 wave antennas however, the nearby field strength meter can still miss modifications that would increase your coverage area. I do agree that your cap hat will handle extreme power before it bursts into a corona arc, but I bet it will happen right where I mentioned and that there is no advantage to spacing the loops one over the other with a gap.</blockquote>

[QUOTE="Shockwave, post: 265258, member: 10882"] So we test a mobile antenna on the "test range" without the mobile? I can only imagine the variables in your test with whatever replacement ground plane you used. Either way it makes no difference in your ability to turn the antenna in it's mount to identify where this gain comes from in your cap hat. If changing the hat to make it asymmetrical increased the gain, you can be sure the pattern it produces is also slightly asymmetrical. With respect to getting your elbows dirty to come up with real results, they can be just as inaccurate if you don't account for every variable in your test. For example you feel the only way to test antennas is by field strength. If you're talking about a simple RF detector across a meter movement a few hundred feet away, I disagree. There are plenty of antennas that will produce similar field strength readings on this device and have drastic differences out in the distance where the fringe zone is. These differences will be smaller when comparing similar 1/4 wave antennas however, the nearby field strength meter can still miss modifications that would increase your coverage area. I do agree that your cap hat will handle extreme power before it bursts into a corona arc, but I bet it will happen right where I mentioned and that there is no advantage to spacing the loops one over the other with a gap. [/QUOTE]

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