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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/3NQYJ7OLJMRQFOFSNI6DMKUTFUZQS3UH/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "3NQYJ7OLJMRQFOFSNI6DMKUTFUZQS3UH",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/KK75DA42V2CVIKOT3KCXESRATCF6E3X2/?format=api",
    "sender": {
        "address": "wb4gcs (a) amsat.org",
        "mailman_id": "87014499e012476c8198fad186f7f963",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/87014499e012476c8198fad186f7f963/emails/?format=api"
    },
    "sender_name": "Jim Sanford",
    "subject": "[eagle] Re: Jim's Phase Noise Number!!",
    "date": "2007-06-11T02:46:12Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/XSI74FW3IGHMPIE5FUBBVHGVLHZRG4QP/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/2PGBN6LRA3QQ74MAPVMVJGJZ6AI5H3VJ/?format=api",
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/WD2R6OC5V3GC6FYBJWMTSBDISEKWCC5K/?format=api",
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/53W5OGXI3B3NNEGCAWZCRHJ734UG7FJ7/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Bill:\n-110 dbc/hz at 10khz offset is what I REMEMBER in my response to the \nquestion, \"What is a good phase noise number to shoot for in a microwave \nnarrowband (ssb/cw) system?\" \n\nMy memory may very well be WRONG, which was the point of asking my question.\n\nI agree with you, looks like -90dbC at 10 KHz, but given what Juan's \nalready said about his sources, and the uncertainties of the SDR-IQ, \nthat may be VERY good!\n\nDo you have a different answer to my original question, \"What is a good \nphase noise number to shoot for in a microwave narrowband (ssb/cw) \nsystem?\"    If so, I'd like to engage in that conversation, both for \nEagle and for my terrestrial microwave station.\n\nI agree with your assessment of Juan's work -- ABSOLUTELY EXEMPLARY!!!!!!\n\nThanks & 73,\nJim\[email protected]\n\n\nBill Ress wrote:\n\n> Jim,\n>\n> Where did the -110 dBC/Hz at 10 KHz come from? And at what frequency? \n> That's pretty aggressive using straight forward VCO's and PLLs. From \n> Juan's data with his snappy SDRIQ, it looks like that the 70 cm is \n> doing about -90 dBc/Hz at10 KHz. I thought that's what I read from his \n> early HP8566B dtata.\n>\n> My straight forward S2 RX downconverter PLL LO does -100 dBc/Hz at 10 \n> KHz.\n>\n> We'd better get a good read on this since, if real, it forces more \n> sophisticated LO designs.\n>\n> Great work Juan!!\n>\n> Regards...Bill - N6GHz\n>\n>\n>\n> Jim Sanford wrote:\n>\n>>\n>> I think I remember Bob's answer as -110dbc at 10 KHz offset.\n>>\n>> Thanks & 73,\n>> Jim\n>> [email protected]\n>\n>\n>\n",
    "attachments": []
}