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GET /hyperkitty/api/list/[email protected]/email/AIEEBIK473KMYYOPADQX6ZKCJBBEP5FN/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/AIEEBIK473KMYYOPADQX6ZKCJBBEP5FN/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "AIEEBIK473KMYYOPADQX6ZKCJBBEP5FN", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/YXAHQKLELGPGIL6RLCNLQQHRFTQIZSQ6/", "sender": { "address": "aa1ye (a) amsat.org", "mailman_id": null, "emails": null }, "sender_name": "John", "subject": "[amsat-bb] Re: Wind Turbine Interference?", "date": "2007-11-05T06:26:40Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/FL7P4RICI7JVWBKGDKXIP2IYYGTWPIBD/", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GABJE3PI3R7253PCLJQ2G2SE5NI6IHMP/" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "At 16:28 11/4/07 -0800, you wrote:\n>\n>>Wind Turbines are a threat to Homeland Defense. They can produce large Blind\n>>Spots on Radars - above, infront and behind them - so yes they can cause\n>>problems to RF signals.\n>>\n>>Effects of Windfarms on Radar\n>>http://www.southgatearc.org/news/october2005/windfarms_radar.htm\n>>\n>Trevor,\n>\n>That is some pretty good stuff for higher powered xmitters...But I \n>doubt there is any instrument sensitive enuff to measure the \n>reflection potential from any satellite we will ever launch, and the \n>\"shadow\" that it would cause on a LEO is in less than a \n>second...HEO's may take a little longer....\n>\n>This is conjecture based on my HS physics...I would appreciate \n>comments from any of the many engineering experts we have on here...\n>\n> 73, Dave [email protected]\n>\n\t\t??????????????????????????????????????????????\n\tWB6LLO,\n\n 1.\tI have to admit I do not understand your term \"reflection potential\nfrom any satellite\".\n\tI would greatly appreciate an explanation of this effect and how to\ncalculate its magnitude on a received satellite signal.\n\n 2.\tHow do you calculate the \"shadow time\" (of this QRM?) to be less than\na second?\n\n\t73s de AA1YE\n\nPS:\tChecking your QRZ entry and your bio reminds me that I learnt to fly\n\"Stringbags\" in WW2. But the war ended before we were deployed to a\ncarrier. I should have been older or declared a false age to join.\n\n\t\t\n", "attachments": [] }