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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/S54PVP4WPISBO2RY7C2RJDLPFBURLO52/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "S54PVP4WPISBO2RY7C2RJDLPFBURLO52",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/S54PVP4WPISBO2RY7C2RJDLPFBURLO52/?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]  VO-52 experimenting this morning...",
    "date": "2009-05-10T04:48:16Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\nHi!\n\nEarlier today, I went to my favorite Phoenix city park (the park\nthat straddles the DM33xp/DM43ap grid boundary that I operate from \nregularly) to work a VO-52 pass starting at 1705 UTC.  I have \nworked many VO-52 passes from here over the past few months using\nmy two FT-817NDs and a directional antenna - initially an Arrow \nAntennas 2m/70cm Yagi, and now the Elk Antennas 2m/70cm log periodic.\nThis satellite can hear well, since I have been able to make QSOs \nthrough VO-52 with as little as 500mW using either of these antennas.\nToday, I wanted to try something other than a directional antenna on \nthis satellite to make a QSO.  \n\nJust like I have done with dual-band HTs on the FM satellites, I\ndecided to try my Maldol AH-510R telescoping whip for today's pass.\nThis antenna is similar to the AL-800 whip that many use for \nportable satellite work.  I connected a 6-foot length of coax \nbetween the whip and the diplexer I use to feed my two radios, so I\ncould move the antenna around without it being connected directly to\neither radio.  I left the transmit power setting at 5W today; \nadjusting the power output can be done in a future experiment.  This\npass had a maximum elevation of 54 degrees to the east for me, and I \nhoped to hear someone on there to complete a QSO with this setup.  \n\nI heard K8YSE calling CQ around the center of the passband at 1706-\n1707 UTC, when the satellite was only up 8-10 degrees from the \nhorizon.  After sending some dits to align my two radios (I know, I \nreally need to get SatPC32 working with them to simplify my non-FM \nstellite operating), I called John.  We started our brief QSO at \n1707-1708 UTC, when VO-52 was up 15 degrees from the horizon for me.\nI used the rear hatch of my truck as a reflector under the whip, \nalong with moving the whip around to improve the signal in my receive\nradio.  Using that improvised reflector, along with the satellite \ncontinuing to move higher in the sky, it was easy for me to keep up \nwith the Doppler shift and the adjustments for the whip.  John and I \nchatted for a couple of minutes, and signed off before John's LOS.  \nThanks for the QSO!\n\nNow that I have completed a VO-52 QSO with the telescoping whip at\n5W, I will try other experiments with lower power output using the \nsame antenna.  I will also swap antennas, trying others like longer\nduckie antennas (around 20\"/50cm in length), to see how small I can\ngo with antenna and power output when working this satellite.  And,\neventually, doing any or all of this with my little netbook and\nSatPC32 controlling the frequencies on my FT-817NDs.  :-)  \n\n73!\n\n\n\n\nPatrick WD9EWK/VA7EWK\nhttp://www.wd9ewk.net/\n\n\n",
    "attachments": []
}