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GET /hyperkitty/api/list/[email protected]/email/RF5XOXA4FZMUQAVYSZ5LGR6D27BXGPQC/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/RF5XOXA4FZMUQAVYSZ5LGR6D27BXGPQC/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "CANiF7qOQD=1iDKUBiHtmfcFozotqKktNqbMMYVAHW2Hy8p7=MQ@mail.gmail.com", "message_id_hash": "RF5XOXA4FZMUQAVYSZ5LGR6D27BXGPQC", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/OYF6ORQJK7PS2KNMECOK5XTMH7THRBNJ/", "sender": { "address": "vk2fak (a) gmail.com", "mailman_id": null, "emails": null }, "sender_name": "John Mac", "subject": "Re: [amsat-bb] NASA Helical Antenna Question", "date": "2018-05-08T22:22:43Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/OYF6ORQJK7PS2KNMECOK5XTMH7THRBNJ/", "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hi all..\n\nIs there any details on the web about this type of helix, have never seen\nit with a ring reflector in books. I have seen a few different shapes of\nreflector cup, and cone which can give a good increase in gain, but also\nthe extra gain is not wide bandwidth..\nI run a 12 turn helix now\nJohn\n\nOn Tue, May 8, 2018 at 11:27 PM, MICHAEL WILLIAMS <[email protected]>\nwrote:\n\n> I've been using a similar (home brew) helix (including ring reflector) on\n> 70 cm since AO-40 days. It works very well (see my QRZ page). The one being\n> discussed has an extra ring reflector.\n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions\n> expressed\n> are solely those of the author, and do not reflect the official views of\n> AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n>\n", "attachments": [] }