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GET /hyperkitty/api/list/[email protected]/email/IWJ2RUKHF7ZGHM5YMRVSUSHKJVHKCAU4/?format=api
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/IWJ2RUKHF7ZGHM5YMRVSUSHKJVHKCAU4/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "CAN6TEUfiy5+LhMteykWPGttsU8jORtjjycTrv69JaEZONJ_5DA@mail.gmail.com", "message_id_hash": "IWJ2RUKHF7ZGHM5YMRVSUSHKJVHKCAU4", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/B5C54B5M3FZJSHUI6THJ7YI7ZJTRGDJ5/?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] Re: Finding yourself on the linear transponders", "date": "2014-01-08T15:45:55Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VQKEKGOM5VEB4ZFZ2KDB6BY4KFQCN4OZ/?format=api", "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hi Roger!\n\nI'm one of those who has a key (paddles) to send dits. I've made\na few CW QSOs via satellite, but most of the time the paddles are\nmy tool to line myself up on transponders so I can work them in\nSSB. I've been doing this for several years, normally with two\nFT-817NDs and no computer. Lining up a CW signal through the\ntransponder has been a lot easier for me than talking while trying\nto find myself. It also helps to compensate for Doppler when\nstarting out. For example, if I'm trying to get started at 145.910\nMHz on VO-52's downlink early in a pass, I do not start transmitting\nright on 435.240 MHz. I move my transmit frequency down a few kHz,\nso I am not having to transmit across 7 to 10 kHz to line myself up.\nI used to keep a note card with the TX and RX frequencies I should\nuse for each of the SSB satellites, so I could set my radios up\nwith a minimum of transmissions to get lined up. Less time used\nto get lined up should mean more time to make QSOs.\n\nAs was mentioned by KB2M and W5PFG, I don't normally start a pass\nat the center of the transponder. There is usually more than\nenough activity in the few kHz above and below that spot, where\nI might not hear my 5-watt signals coming through the transponder\nthere. I also know that, without using a computer, I should go off\nand find a quiet spot away from the center to get lined up. I don't\ninterfere with others that way, and they aren't getting in my way\nwhen I'm trying to get lined up. I look to go 10 to 15 kHz above\nthe center frequency to get started, then work from there. I may\nmove down toward the center later in the pass, if I am not working\nanyone where I started out higher in the transponder. If you try to\nfind me this Saturday morning on those satellites while I am doing\ndemonstrations from a Phoenix hamfest, look for me around that area\nearly in the pass instead of at the center of the transponder.\n\nW5PFG is also right about those who use too much power through the\ntransponders. Normally I have no problems working the transponders\nwith 5W signals, and sometimes will cut back to as little as 500mW\naround the middle of a pass. There have been times where I am not\nable to hear myself, even when the satellite is up 30 to 40 degrees\nfrom the horizon - where I should be able to hear myself clearly\nthrough the satellite. I can usually find a very strong signal\non the downlink when that happens, one that probably could use less\npower and still be clearly heard.\n\n\n73!\n\n\n\n\n\nPatrick WD9EWK/VA7EWK\nhttp://www.wd9ewk.net/\n\n\n\n\n\nOn Tue, Jan 7, 2014 at 10:53 PM, Roger Kolakowski <[email protected]> wrote:\n\n> Honestly...I wonder how many of the operators have keys to send those\n> dits...\n>\n> Roger\n> WA1KAT\n>\n>\n> On 1/7/2014 7:59 PM, Ronald G. Parsons wrote:\n>\n>> Perhaps it’s just me, but it seems like an increasing number of operators\n>> are trying to find their downlink by speaking into their mic while tuning\n>> up and down the band, often plus or minus 20-30 kHz. Not only is this\n>> disruptive to existing QSOs, it is not the most effective way to do it. My\n>> receiver has a panadapter with a 40 KHz bandwidth, and I can see these SSB\n>> signals swishing up and down, over and over.\n>>\n>> If you don’t have computer control of your frequency, set up a switch by\n>> which you can send a SHORT series of dits. Then don’t swish. Adjust your\n>> transmitter is steps of about 3 kHz. Send a burst of dits at low power and\n>> listen. If you don’t hear yourself, tune up or down. This way you will have\n>> an effective way to find yourself and you won’t interrupt other QSOs\n>> repeatedly.\n>>\n>> Once you find yourself, make sure you are not interfering with an\n>> existing QSO. Then refine your tuning until your frequency is nearly right.\n>> If you are operating CW, your done. If you are operating SSB, try holding a\n>> tone generator near your mic and adjust your transmitter or receiver until\n>> the tone on the downlink matches the tone generator.\n>>\n>> There is probably a free tone generator available for your smart phone.\n>>\n>> Better yet, try computer control of your transmitter and receiver. You\n>> can easily find an Elmer on the air if you need help.\n>>\n>> But, PLEASE. don’t swish!\n>>\n>> Ron W5RKN\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>\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", "attachments": [] }