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/WSEJF5NTDG5VWWXY636BMLXD4LHMXGJV/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "WSEJF5NTDG5VWWXY636BMLXD4LHMXGJV",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/5HCWDGY7NTFKXMOTF2O7KEJMGKDL6VW4/?format=api",
    "sender": {
        "address": "a.bolduc (a) comcast.net",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Al Bolduc",
    "subject": "[amsat-bb] Re: Decoding wideband recordings",
    "date": "2011-08-14T17:07:32Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VUPTZG2MDAES3LQO33HNDDLZE2TH3P53/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\nTry the following\n\n#!/bin/bash\n#\n#       Record sdr data from FunCube Dongle.\n#\n#       Usage: fcd_record extra_options filename\n#               example: fcd_record --duration=60 tt.wav\n#\n\nDEV=\"--device=hw:3\"\nOPTIONS=\"--format=S16_LE --channels=2 --rate=96000\"\n\narecord $DEV $OPTIONS $@\n\n\n\nOn Sun, 14 Aug 2011, Bruce Robertson wrote:\n\n> On Sat, Aug 13, 2011 at 7:07 PM, Phil Karn <[email protected]> wrote:\n>> On 8/10/11 8:24 PM, Tom Azlin N4ZPT wrote:\n>>> I have a Fun Cube Dongle so I would Phil. Thanks and 73, Tom n4zpt\n>>\n>> Okay, everybody make and keep your wideband I/Q recordings and I'll work\n>> on an enhancement to my demodulation/decoding software to process them.\n>> It may not run in real time on slower machines because of the need to\n>> search a wider frequency range, but this won't matter if it can work on\n>> a recording.\n>>\n>> I can probably speed things up by including an orbit model in the modem\n>> to predict Doppler open-loop, but this will take time to implement and\n>> it will still be vulnerable to small errors in the elements and/or your\n>> clock, especially around closest approach. So record the date and time\n>> of your recordings and the current eleset at that time.\n>\n>\n> For those who have not noted this feature, HDSDR will open a recording\n> scheduler if you right click on the 'record' button. It saves files\n> with UTC time appended. The tricky part is that you have to set the\n> scheduler manually in local time.\n>\n> I've been thinking it would be a nifty hack to make a FCD recorder for\n> a set of satellites using a very small computer, like the BeagleBoard.\n> It seems to me that a daily cron job with 'Predict' would just about\n> do what was necessary, especially now that we have a commandline tool\n> for the FCD. The only part that would take some fiddling would be\n> piping the USB sound card into a file with the proper headers for\n> HDSDR.\n>\n> 73, Bruce VE9QRP\n>\n>\n> -- \n> http://ve9qrp.blogspot.com\n> _______________________________________________\n> Sent via [email protected]. Opinions expressed are those of the author.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>\n\nAl\n\n-- \n#  Al Bolduc - [email protected] - [email protected]\n",
    "attachments": []
}