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/NKDRXEPP7NOHYQGGIKKZZ37XKY4HENBF/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CAN6TEUffJGk+KVZxZkptHvRG8iOgc1B_UE=fSJasPcCTko0Tng@mail.gmail.com",
    "message_id_hash": "NKDRXEPP7NOHYQGGIKKZZ37XKY4HENBF",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/NKDRXEPP7NOHYQGGIKKZZ37XKY4HENBF/?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] Monday evening AO-85 passes at WD9EWK...",
    "date": "2015-10-13T06:15:11Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi!\n\nNo QSOs went in the log on either AO-85 pass I worked this evening, but I\nwas able to collect 32 data frames on these passes, and unsuccessfully\ntried a different HT on these passes (Anytone TERMN-8R). I'll come back\nto this radio after I return from Dayton. I used the same two setups on\nboth passes:\n\nStation 1: AnyTone TERMN-8R 2m/70cm HT, Elk handheld 2m/70cm log periodic\n\nStation 2: SDRplay RSP receiver, 8-inch Windows 10 tablet, HDSDR,\n           connected to AMSAT-UK (Winkler) VHF crossed dipole on 8-foot\n           mast and tripod\n\nThe first pass came by around 0130 UTC. This was a very high pass, up to\nalmost 72 degrees elevation. Lots of stations on from coast to coast. I\ntried to get through with the TERMN-8R/Elk combination. I think I heard\nmyself early in this pass, but was covered up by a stronger station.\nOther than that one instance, I never heard myself through the satellite\non this pass, and didn't hear myself on the HDSDR recording from my other\nstation. Even though I made no QSOs, I was able to upload 30 data frames\nfrom this pass. Not bad for a portable station with an omnidirectional\nantenna on an 8-foot mast and tripod (probably closer to 10 feet/3m high,\nincluding the height of both mast and tripod).\n\nFor the later pass around 0311 UTC, I moved my station to my driveway, so\nI had a better view to the west and northwest. It was a lower pass, with\nmaximum elevation of 15 degrees. I didn't hear myself get through on this\npass, but not from a lack of trying. A nice bit of voice activity from\nstations along the west coast, and up to VE6WK in Calgary before my LOS.\nThe SDR receive setup was able to upload 2 data frames from this pass. If\nI had my Elk connected to the SDRplay, I am sure I could have pulled a few\nmore frames from this pass.\n\nThe HT I used on this pass is the AnyTone TERMN-8R 2m/70cm FM HT. It was\nbriefly sold in the US earlier this year, but was pulled from the market.\nI bought it earlier this year, used it with SO-50 previously (half-duplex -\nlots of desense, like with other Chinese-made dual-band HTs), and have been\nwaiting for AO-85 to arrive. Its receiver is similar in performance to the\nWouxun KG-UV8D when working this satellite, and not as good as the KG-UV9D.\nIt is very important to have the best possible signal in the receiver with\nthis radio, as its performance drops off quickly as the signals weaken. The\nTERMN-8R is not as sensitive as most Icom/Kenwood/Yaesu dual-band HTs, and\nnot as sensitive as the KG-UV9D. I was able to copy the downlink OK, but\ndue to a variety of issues I only heard part of one transmission early in\nthe first pass I worked. I will come back to this radio after the AMSAT\nSymposium, and hopefully have a better chance to get through on AO-85 at\nthat time.\n\nI have been asked why I am doing this - using different radios or\ncombinations of radios to work this satellite. Since we have not had a U/V\nFM satellite since SO-35's demise in 2001 (a satellite I worked one time,\nin 2000, using two HTs with long duckies), and not counting the ISS U/V\ncrossband repeater that was on in the mid- to late-2000s (its downlink was\nmuch easier to hear than even AO-85), this is the first time we have been\nable to actually test radios against an actual U/V FM satellite.\n\nI attend lots of events around the southwestern USA representing AMSAT,\nwhere I field questions from hams who are either thinking about satellite\noperating, and others who may be coming back to this part of our hobby. I\nalso get e-mails from all over, with questions that I have enjoyed trying\nto answer. If I'm able to disprove some incorrect statements that have been\nfloating around in relation to some of these radios, all the better! It is\nbetter to have more options available for hams to work this satellite, not\nfewer. Some of the traditional options for radios that work with SO-50 and\nprevious V/U FM satellites are not good options for AO-85 and future U/V FM\nsatellites. Not working SO-50 and other V/U FM satellites full-duplex may\nbe a viable option for those satellites, but it is a very poor option. Find\na second HT, or even an SDR receiver, if you are trying to set up a station\ncapable of working satellites - including AO-85 - full-duplex.\n\nI could just use my IC-2820H mobile radio at 50W to log lots of stations on\nevery possible AO-85 pass I can work. I know this is a great radio for FM\nsatellites, whether working V/U or U/V. Where's the challenge in doing\nthat? And there's the SDR stuff that has been fun to use. Having the RF\nrecordings from HDSDR, which I can use to upload telemetry to AMSAT and\nupdate my logbook, is a powerful tool to help improve my station and my\noperating. An SDR receiver with a small tablet is a capable - and less\nexpensive - way to help build an all-mode satellite station that is capable\nof full-duplex operation.\n\nThe two RF recordings I made from the AO-85 passes I worked, and other\nphotos and screengrabs, are now up in my Dropbox space at:\n\nhttp://dropbox.wd9ewk.net/\n\n(hit F5 until the folder/file listing appears in your browser window, if\nit doesn't appear immediately)\n\nMy @WD9EWK Twitter feed usually has photos either before or after the AO-85\npasses I work, along with other comments and observations I can put into\n140-character chunks. This is readable in a browser window without having\nto join Twitter, at https://twitter.com/WD9EWK\n\n73!\n\n\n\n\nPatrick WD9EWK/VA7EWK\nhttp://www.wd9ewk.net/\nTwitter: @WD9EWK\n",
    "attachments": []
}