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GET /hyperkitty/api/list/[email protected]/email/BPTPJPOYK62QAVPE7C2NBM4KL3PRWDEV/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BPTPJPOYK62QAVPE7C2NBM4KL3PRWDEV/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "EC0D3712334942B8A25E082ED33020C1@CIR2", "message_id_hash": "BPTPJPOYK62QAVPE7C2NBM4KL3PRWDEV", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/BPTPJPOYK62QAVPE7C2NBM4KL3PRWDEV/", "sender": { "address": "n6kth (a) n6kth.com", "mailman_id": "c03719e6357e4a888cdde4667d695989", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/c03719e6357e4a888cdde4667d695989/emails/" }, "sender_name": "Ken Owen", "subject": "[amsat-bb] Help for Humber College Students with ISS Contact", "date": "2008-11-24T23:20:18Z", "parent": null, "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GTUXDX5VYTBF7ZADSBEXRDVTPAJRL57D/", "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/3BRPTCB3CJY32NRL66O52PYZXWS5MQWC/" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hi folks:\n\nA student from Humber College (Toronto) has asked me several questions\nregarding contacting the ISS. One has to do with receiving a beacon, and\nthe other has to do with antenna polarization. I've urged him to join AMSAT\nand get on the listserv, but in the mean time, I wonder if anyone can help\nhim out with his questions. \n\nPlease reply directly to him ([email protected]) if you can help.\n\nThanks!\n\nKen, N6KTH\n\n\n\nFrom: Paul Je [mailto:[email protected]] \nSent: Monday, November 24, 2008 1:17 PM\nTo: Ken Owen\nSubject: RE: ISS contact\n\nSay Ken, we've set up our primary station just fine, but I was wondering if\nI could ask for your advice. Well, you see, we've tested the transceiver\nthat we have (the ICOM IC-V8000), and we can transmit and receive just fine\nwith it on our circular-polarized HyGain 2m antenna. Also, we did a VSWR\ntest and our loss is minimal with the 75W transceiver that the ICOM\nproduces. Ok, so here's the problem. Even with all the proper testing\ndone, we still can't seem to pick up or hear the 166MHz beacon that the ISS\nproduces.\n \nMy classmates and I are a bit worried/stressed out. I mean, just on last\nFriday, we did a test and someone drove at least 5km away from out college\nand heard us fine with the handheld radio he had. We had a signal strength\nof 3+ out of 5. He could've drove out even further, but we felt that we did\nenough testing to know that any attenuation losses were very minimal. \n \nWell, do you know what the problem could be? Have you heard the beacon?\nWhat does it sound like? Maybe we should delay or advance the rotor by a\nfew seconds? We're using NOVA software, and it allows us to send our\ntransmission a few seconds ahead or behind. \n\nOk, so we have a circular polarized HyGain antenna hooked up to our Yaesu\nG5500. Uhm, this might sound dumb but do you know whether we should be\nright hand circular polarized or left hand circular polarized? Is the ISS\nright hand or left hand on 144.490MHz? \n \nI'm trying to research this, but I'm having the hardest time to find this\ninformation out. Oh, also, since our antenna is circular-polarized, does\nthe way we set our antenna have an effect on our transmission? I know this\nsounds confusing, but let me explain:\n \nIf you looked at our antenna from the front so that you could see all the\ndipoles/elements both vertically and horizontally to your view, well, should\nthey be perfectly aligned with one set horizontal and one vertical? Both\nthe vertical and the horizontal are perfectly 90degrees to each other,\nhowever, instead of being a perfect cross to your view, the elements are\nmore like an \"X\" to your point of view (even though both are perfectly\n90degrees to each other).\n \nWell, hope to hear back from you.\n \nPaul\n\n", "attachments": [] }