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CP benefits satellite communications much the same way it benefits HF skywave propagation. Because the satellite signal passes through the ionosphere its polarization is distorted and twisted as is passes through just like a skywave signal when it reflects off the ionosphere.

What determines the difference in LCP or RCP is what side of the antenna has the extra 1/4 wavelength of coax in it to delay the signal. The direction of CP is only important when you are dealing with another signal that is also CP like with satellites. On 11 meters there are just about no CP stations so either direction of rotation will show the same results there.

The SWR is always a problem when combining two 50 ohm antennas directly together through a switch box since the end result is a 25 ohm load and a 2:1 SWR. That is easily corrected by feeding both sides of the antenna through a 75 ohm co-phase harness.

<blockquote data-quote="Shockwave" data-source="post: 663838" data-attributes="member: 10882">CP benefits satellite communications much the same way it benefits HF skywave propagation. Because the satellite signal passes through the ionosphere its polarization is distorted and twisted as is passes through just like a skywave signal when it reflects off the ionosphere.What determines the difference in LCP or RCP is what side of&nbsp; the antenna has the extra 1/4 wavelength of coax in it to delay the signal. The direction of CP is only important when you are dealing with another signal that is also CP like with satellites. On 11 meters there are just about no CP stations so either direction of rotation will show the same results there.The SWR is always a problem when combining two 50 ohm antennas directly together through a switch box since the end result is a 25 ohm load and a 2:1 SWR. That is easily corrected by feeding both sides of the antenna through a 75 ohm co-phase harness.</blockquote>

[QUOTE="Shockwave, post: 663838, member: 10882"] CP benefits satellite communications much the same way it benefits HF skywave propagation. Because the satellite signal passes through the ionosphere its polarization is distorted and twisted as is passes through just like a skywave signal when it reflects off the ionosphere. What determines the difference in LCP or RCP is what side of the antenna has the extra 1/4 wavelength of coax in it to delay the signal. The direction of CP is only important when you are dealing with another signal that is also CP like with satellites. On 11 meters there are just about no CP stations so either direction of rotation will show the same results there. The SWR is always a problem when combining two 50 ohm antennas directly together through a switch box since the end result is a 25 ohm load and a 2:1 SWR. That is easily corrected by feeding both sides of the antenna through a 75 ohm co-phase harness. [/QUOTE]

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