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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ZGMNFMHETHVVJIDMFPJCOIX75KBXRYKF/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CAN6TEUdh8O348Js=MOY_n71o9jhDo29A3WTxNrmn7d_-xhDcuA@mail.gmail.com",
    "message_id_hash": "ZGMNFMHETHVVJIDMFPJCOIX75KBXRYKF",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/ZGMNFMHETHVVJIDMFPJCOIX75KBXRYKF/?format=api",
    "sender": {
        "address": "amsat-bb (a) wd9ewk.net",
        "mailman_id": "21664df01bef4757931b7cdb42a9e768",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/21664df01bef4757931b7cdb42a9e768/emails/?format=api"
    },
    "sender_name": "Patrick STODDARD (WD9EWK/VA7EWK)",
    "subject": "[amsat-bb] WD9EWK on the CAS-3 satellites this afternoon/evening",
    "date": "2015-09-21T03:04:53Z",
    "parent": null,
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/L5R5P6SOA6Y5PAQC4WEPI27ZOSDXVFUQ/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi!\n\nAfter reading all of the fun everyone had last night and earlier today\nworking the new Chinese satellites, I was looking forward to the passes\nlate in this afternoon. The first of the two passes was not very high\nout here in Arizona, with maximum elevation of 10 degrees around 0000\nUTC. The next pass, about 90 minutes later, was up to a maximum elevation\nof 47 degrees. I have been using my SDRplay receiver to work other\nsatellites, and I wanted to give it a try on these satellites. SDR makes\nworking these satellites fun, being able to see all of them on the\nscreen.\n\nFor the first of the two passes, around 0000 UTC, I had my SDRplay in the\nyard, along with my 8-inch HP Stream 8 tablet and Elk log periodic. I did\nnot intend on transmitting during this pass, considering the relatively\nlow elevation. Once the satellites rose above the houses and hills to my\neast, they were easy to hear. I could hear the CW telemetry from all 6\n(CAS-3A through -3F), see the digital telemetry from all 6, and heard\nQSOs on the transponders of CAS-3E and CAS-3F. While I was listening, I\nused the HDSDR software's RF recoding function to capture all of this.\nFor about 5 minutes, I ended up with a 1.2 GB file.\n\nAfter hearing the activity on that pass, I made sure I was all set to work\nstations on the pass around 0130 UTC. I brought out one of my FT-817NDs,\nmy headset/mic, diplexer, and additional coax. I had my tablet all set with\nthe SDRplay plugged in and HDSDR on the screen. I made adjustments to HDSDR\nso I could see and hear all 6 satellites, which fit comfortably in a 600\nkHz bandwidth. Once I started seeing traces of signals on the HDSDR screen,\nI started my RF recording in HDSDR and my Sony audio recorder (I still use\nthe external audio recorder, even when working with my SDR setup, as\ninsurance in case something happens to the HDSDR recording). And it was a\nbusy pass.\n\nI saw activity appearing on both of the working transponders. Initially,\nthere was more activity on CAS-3F's transponder, but more activity showed\nup on CAS-3E's transponder later in the pass. I started working CAS-3F,\nand was able to log 3 QSOs - Brad KG7NXH a few miles southeast of me,\nGlenn AA5PK in Texas, and Mike WA6ARA in California. At this point, it was\njust after the midpoint of the pass, and tuned my FT-817ND and HDSDR to the\nCAS-3E transponder. I heard WA6ARA CQing, and made a quick QSO with him for\nmy first CAS-3E QSO. I still saw more activity on CAS-3F toward the end of\nthe pass than on CAS-3E, but there were stations on both transponders.\n\nAfterwards, I opened up the RF recording from the later pass, and saw that\nI received the CW beacon and digital telemetry from all 6 satellites - just\nlike I saw on the earlier pass. I intend on posting both RF recordings,\nbut that might have to wait until tomorrow. The RF recording from the later\npass was about 1.9 GB for 9 minutes. I'll post a follow-up message here\nwhen those files are available online, if anyone wants to grab a copy and\nsee/hear themselves as I heard the transponders out here in Arizona.\n\nI could have worked these passes with my two FT-817NDs, but this is most\ndefinitely one advantage for using an SDR receiver. I did not have to hear\nanything on the transponders to know there was activity. I could see it on\nthe waterfall, and see the other signals from all 6 satellites. I could\ntell which transponder was busier (CAS-3F was usually the busier of the\ntwo). I also found that having HDSDR put the RF recordings on the tablet's\nC: drive (internal storage) instead of the D: drive (micro-SD card) worked\na lot smoother.\n\nI will also post details on my HDSDR setup with the SDRplay receiver. I\njust bought this receiver a couple of months ago directly from its UK\nmanufacturer, but now they are available in the US from Ham Radio Outlet.\nI still like the FUNcube Dongle Pro+, but that dongle only allows for a\nmaximum bandwidth of 192 kHz. This is fine when working one satellite, or\nmaybe a couple of these CAS-3 satellites, but the SDRplay allows for a\nmaximum bandwidth of 8 MHz. I'm only using 600 kHz bandwidth with these\nsatellites, so that my recordings don't overwhelm the tablet's C: drive.\n\n73!\n\n\n\n\n\nPatrick WD9EWK/VA7EWK\nhttp://www.wd9ewk.net/\nTwitter: @WD9EWK\n",
    "attachments": []
}