{"id":13275,"date":"2024-05-18T16:27:02","date_gmt":"2024-05-18T14:27:02","guid":{"rendered":"https:\/\/nolle.engineering\/?p=13275"},"modified":"2026-10-29T10:34:53","modified_gmt":"2026-10-29T09:34:53","slug":"iceconefeed-right-hand-circular","status":"publish","type":"post","link":"https:\/\/nolle.engineering\/en\/2024\/05\/18\/iceconefeed-right-hand-circular\/","title":{"rendered":"IceConeFeed Right Hand Circular!"},"content":{"rendered":"

The nominal QO100 uplink which is using a dish reflector requires a left hand circular polarized (LHCP) feed. This is because the dish reflection mirrors the polarization and turns it from left to right hand as the satellite expects it.<\/p>\n\n\n\n

But what if you have a dual reflector like OH2JKU in Finland? You need to use an RHCP version of the IceConeFeed which is now available on request. It essentially is a mirrored version of the original LHCP. <\/p>\n\n\n\n

OH2JKU is only allowed to mount a single dish at his premises (but obviously no limits on number of LNBs \ud83d\ude09 So this is the solution he came up with and it works great!<\/p>\n\n\n\n

\"OH2JKU<\/figure>\n\n\n\n

Compare LHCP and RHCP version. The RHCP comes completely in orange to avoid confusion.<\/p>\n\n\n\n

\"LHCP<\/figure>\n\n\n\n

<\/p>\n\n\n\n

\"RHCP<\/figure>\n\n\n\n

Update:<\/em> the same station (OH2JKU) has now run this setup through several Finnish winters — see The IceConeFeed through a Nordic winter<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

The nominal QO100 uplink which is using a dish reflector requires a left hand circular polarized (LHCP) feed. This is because the dish reflection mirrors the polarization and turns it from left to right hand as the satellite expects it. But what if you have a dual reflector like OH2JKU in Finland? You need to… <\/p>\n

Read More<\/a><\/div>","protected":false},"author":5213,"featured_media":12223,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[47,43],"class_list":["post-13275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-ice-cone-feed","tag-qo100","fallback-thumbnail"],"yoast_head":"\nRHCP IceConeFeed for Dual-Reflector QO-100 Dishes - nolle.engineering<\/title>\n<meta name=\"description\" content=\"RHCP version of the IceConeFeed for QO-100 setups with a second reflector: a mirrored helix in all-orange parts, in use at OH2JKU in Finland. 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