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[QUOTE=&quot;DW-77, post: 122427, member: 38055&quot;]Thank you Rick.You are absolutely correct about antenna gain vs amplification; the way I worded it before was just &quot;trying to make a long story short&quot;. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" />Yes, I am receiving several channels from the back of the antenna (they make it through the reflector due to their high level).&nbsp; Besides those, with 1 or 2 exceptions, I am also getting all the channels that TVFool shows with a NM higher than 12, at 243 degrees. I am primarily using the F/B separation of the antenna to resolve the 31&amp;33 co-channels conflicts coming from 42&amp;44 degrees; there is some &quot;collateral damage&quot; (that lines up pretty well with my expectations based on &quot;the numbers&quot;).You are also right that the cheapest solution would be to add a dipole to the CS-4. Antenna Direct offered to sell me one, along with a UHF/VHF combiner. The issue I may face with that is that channel 11 and 13 might require more VHF gain than that provided by a simple dipole. (I am getting ch.13 &quot;as a bonus from the CS-4&quot; now, but would be losing it as soon as I pass that signal through a VHF/UHF combiner).About the triple boom Yagi, I am as curious as you are (if not more). Most &quot;standard&quot; Yagi radiation patterns I have seen have small lobes in the back as well, but I am not sure how that plays out for a triple boom. I like to verify things on paper before engaging other resources and climbing the roof (or the attic), but without any relevant data form the manufacturer / re-seller, it is like shooting in the dark. If I decide to the 30-2440, I will let you know and share what I learned.[/QUOTE]

[QUOTE="DW-77, post: 122427, member: 38055"]Thank you Rick. You are absolutely correct about antenna gain vs amplification; the way I worded it before was just "trying to make a long story short". :) Yes, I am receiving several channels from the back of the antenna (they make it through the reflector due to their high level). Besides those, with 1 or 2 exceptions, I am also getting all the channels that TVFool shows with a NM higher than 12, at 243 degrees. I am primarily using the F/B separation of the antenna to resolve the 31&33 co-channels conflicts coming from 42&44 degrees; there is some "collateral damage" (that lines up pretty well with my expectations based on "the numbers"). You are also right that the cheapest solution would be to add a dipole to the CS-4. Antenna Direct offered to sell me one, along with a UHF/VHF combiner. The issue I may face with that is that channel 11 and 13 might require more VHF gain than that provided by a simple dipole. (I am getting ch.13 "as a bonus from the CS-4" now, but would be losing it as soon as I pass that signal through a VHF/UHF combiner). About the triple boom Yagi, I am as curious as you are (if not more). Most "standard" Yagi radiation patterns I have seen have small lobes in the back as well, but I am not sure how that plays out for a triple boom. I like to verify things on paper before engaging other resources and climbing the roof (or the attic), but without any relevant data form the manufacturer / re-seller, it is like shooting in the dark. If I decide to the 30-2440, I will let you know and share what I learned.[/QUOTE]

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