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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/QU7P7EPO3TWW5GYPUXB2COVDZMKAVUPH/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "001101cae0c0$7e079810$6700a8c0@sparkys",
    "message_id_hash": "QU7P7EPO3TWW5GYPUXB2COVDZMKAVUPH",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/Y7OROODATQHVZHCV735Z4QY2SYYJALQY/?format=api",
    "sender": {
        "address": "sparkycivic (a) shaw.ca",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Auke de Jong, VE6PWN",
    "subject": "[amsat-bb] Re: AO-51 V/S",
    "date": "2010-04-20T19:34:28Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/3JF3O6JLQARLWIAFLUV4ZOLMW67HIWGL/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "In my sub-urban QTH, I can hear nothing EXCEPT wifi noise starting right at \n2401.025MHz in all directions.  I'm planning to optimise my BBQ grill/3733 \nantenna in order to improve off-axis rejection, and hopefully the noise - \nwithout having too sharp of pattern for manual tracking of AO-51.  I'm also \ncontemplating ditching the BBQ grill reflector in favor or a small dish to \nget better f/b and cut the noise.  It makes me wish that satellites would \nstick closer to 2400MHz such as AO-40- it's less noisy there.\n\n73\nAuke\n\n\n----- Original Message ----- \nFrom: \"Luc Leblanc\" <[email protected]>\nTo: <[email protected]>\nCc: <[email protected]>\nSent: Tuesday, April 20, 2010 7:14 AM\nSubject: [amsat-bb] Re: AO-51 V/S\n\n\nOn 20 Apr 2010 at 2:24, Bob- W7LRD wrote:\n\nDate sent:      Tue, 20 Apr 2010 02:24:55 +0000 (UTC)\nFrom:           Bob- W7LRD <[email protected]>\nSubject:        [amsat-bb]  AO-51 V/S\nTo:             [email protected]\n\n>\n>\n> This last pass worked W6YX and heard Kerry, WC7V. Noticed some very deep \n> fades.\n>\n> 73 Bob W7LRD\n\nDid anyone ever tested their downconverter who is basically a receiver to \nmeasure the amouint of desense the WI-FI , spread spectrum and\nfrequency hopper device and so on produce on 2.4Ghz?\n\nDesense is very noticeable on VHF and UHF when a transmitter is transmitting \nnear a receiver as per i can see on a PCR-1000 scope screen\nthere is always a 10db noise floor but i'm not sure if this level is not \nreally much higher as the scope seems to not be fast enough to\ndisplay the real peak level of all the signal on 2.4Ghz.\n\nIf a fairly high amount of desense is always present this could explain why \nthe downconverter is lacking sensitivity and why some normal\nfades appears deeper than they really are. And what is worse is the WI-FI \nQRM is also right on the received 2.4Ghz amateur band.\n\nHere i have to switch off my WI-FI router and my 2.4Ghz camera when i want \nto listen on 2.4Ghz and the camera is the worse as she give 30\nover 9 very wide  spread signal.\n\nOpinions are welcome.\n\n\n\"-\"\n\n\nLuc Leblanc VE2DWE\nSkype VE2DWE\nwww.qsl.net/ve2dwe\nDSTAR urcall VE2DWE\nWAC BASIC CW PHONE SATELLITE\n\n\n\n_______________________________________________\nSent via [email protected]. Opinions expressed are those of the author.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n\n--------------------------------------------------------------------------------\n\n\n\nNo virus found in this incoming message.\nChecked by AVG - www.avg.com\nVersion: 9.0.801 / Virus Database: 271.1.1/2822 - Release Date: 04/20/10 \n00:31:00\n\n",
    "attachments": []
}