Email Detail

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/SXVWT746BB6T6676KNDJFKGME6P4PM6H/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "SXVWT746BB6T6676KNDJFKGME6P4PM6H",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/QT4WNIGWWAM3NY7RVOBGFZK34QULSI5M/?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: The DS4000 Digital Controlled TCXO",
    "date": "2007-07-04T03:07:41Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/5QU42RGTHYUHKOR2JGYKTMIVCQDEH2JY/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/CWPFMKXQJH4JFPRGEPEYCS6R6XSVV2VM/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Juan:\nI can't imagine it NOT being a problem.\n\nFor the sake of completeness, let's assume that it IS, and solve it.\n\nThanks for all your hard work.\n\n73,\nJim\[email protected]\n\n\nJuan Rivera wrote:\n\n>Hi Bill,\n>\n>Aren't all these tools neat?  I though you'd like the audio!\n>\n>I'm thinking that the uplink guys are going to have to weigh in and tell us\n>if these jumps are a problem or not for data.  I'd think that they would be\n>for demodulating data and a major annoyance for SSB.  It's the sort if\n>subtle stuff that I didn't notice at first.  I'm sure there are a few more\n>surprises waiting to be discovered.\n>\n>I'm curious about the beat since the two oscillators produced IF outputs\n>that were fairly far apart and yet the beat seems to be around 1 Hz.  I\n>guess I could try to sniff the internal oscillator to see exactly where it\n>really is.\n>\n>73,\n>\n>Juan\n>\n>-----Original Message-----\n>From: Bill Ress [mailto:[email protected]] \n>Sent: Tuesday, July 03, 2007 6:49 PM\n>To: [email protected]\n>Cc: [email protected]\n>Subject: The DS4000 Digital Controlled TCXO\n>\n>Hi Juan,\n>\n>The audio is a fantastic addition to your super analysis regime. Just \n>really fine work!!\n>\n>I've already addressed the issue of the two 10 MHz oscillators beating \n>as heard in clip #1.\n>\n>Now what you hear in the second audio clip doesn't surprise me. Just \n>another reason why I remain digitally challenged and analog biased.\n>\n>The DS4000 is a \"digitally\" corrected voltage controlled oscillator. I \n>believe what you are hearing is the frequency being corrected in finite \n>digital steps. An analog temperature corrected VCO will not do this. The \n>correction will be continuous and smooth. The key advantage of the \n>\"digitally\" corrected VCO is the ability to \"remotely\" correct the \n>frequency with a digital input. I would submit, that feature is not \n>needed for our application.\n>\n>The \"analog\" TCVCXO used in the S2 concept converter uses a low cost \n>device (available from several suppliers) and offers +/- 1 PPM stability \n>over temperature (-40 to 85 C).\n>\n>Regards...Bill - N6GHz\n>\n>Juan Rivera wrote:\n>  \n>\n>>All,\n>>\n>>I should have gone to work today but I ended up working on the 70 cm \n>>Receiver all day instead. Today marks a milestone for me -- my first \n>>use of audio files. You'll find two in my write up if you click HERE \n>><http://www.juanr.com/pages/hobbies/ham_radio/Eagle/Stability.htm>. I \n>>think they work much better than descriptions and graphs. Now you can \n>>hear what I'm talking about...\n>>\n>>Have a great 4th! I plan to do a temperature run on the receiver \n>>tomorrow to celebrate! Let's see what that internal oscillator does \n>>when it's not at room temperature!\n>>\n>>P.S. to OSCAR guys... If you have time come on over and help me run \n>>this test. I'll probably start early to beat the heat. If you've never \n>>been gassed by CO2 before, now is your chance!\n>>\n>>73,\n>>\n>>Juan - WA6HTP\n>>\n>>    \n>>\n>\n>\n>\n>_______________________________________________\n>Via the Eagle mailing list courtesy of AMSAT-NA\n>[email protected]\n>http://amsat.org/mailman/listinfo/eagle\n>\n>  \n>\n\n\n",
    "attachments": [
        {
            "email": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/SXVWT746BB6T6676KNDJFKGME6P4PM6H/?format=api",
            "counter": 2,
            "name": "attachment.html",
            "content_type": "text/html",
            "encoding": "us-ascii",
            "size": 4043,
            "download": "https://mailman.amsat.org/hyperkitty/list/[email protected]/message/SXVWT746BB6T6676KNDJFKGME6P4PM6H/attachment/2/attachment.html"
        }
    ]
}