Differences

This shows you the differences between two versions of the page.

--- 2m0iig-satellite-yagi [2022/08/25 21:23] – [Build Process] mm3iig
+++ 2m0iig-satellite-yagi [2022/12/08 19:34] (current) – [2/70 Direct-Fed Satellite Yagi (work in progress)] 2m0iig
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-====== 2/70 Direct-Fed Satellite Yagi (work in progress) ======
+====== 2/70 Direct-Fed Satellite Yagi ======
 ===== Introduction =====
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 <WRAP left round box half>
 ===== Parts List =====
-{{ :1_materials.jpg?direct&300|}}
+{{:1_materials.jpg?direct&300| }}
   * 1m section of 20mm rigid PVC conduit
   * 3 x 20mm conduit spacer bars
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   * Something to make marks with (sharpie?)
 </WRAP>
 <WRAP right round box third>
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 {{ :6_stowed.jpg?direct&900 |}}
+===== Improvements =====
+There’s loads of ways you can improve this design. A foam grip or pistol grip would be good for the wrist - these antennas do get a little heavy and cumbersome after a while.
+I’ve also considered adding a reflector behind the driven elements. There’s room for it, and it may improve the UHF downlink receive which is the only downside of this antenna (hence it only really working to 40ish degrees). I will run the model for this in MMANA-GAL and see how it helps. It may ruin the 70 cm match though.
+I think the original design with arrow shafts (used on the, er, Arrow too) are a better idea for better rigidity and keeping everything aligned right. But I don’t really have much in the way of tools or skills, so drilling holes for threads and inserts scares me. But seriously, if you are okay doing that kind of work then definitely do it - it’ll be much better than my build.
+A split boom somehow would also be good, just to keep the size down. How to attach the two halves together is something I’d need to think about.