Email Detail
Show an email
GET /hyperkitty/api/list/[email protected]/email/FCDDUM5DXGQJRNV4UQB34M2E2YWBEEBU/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/FCDDUM5DXGQJRNV4UQB34M2E2YWBEEBU/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "FCDDUM5DXGQJRNV4UQB34M2E2YWBEEBU", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/5XMNRLSP6U2JTWGGD3ASTIXP53OF5CHA/", "sender": { "address": "mvandewettering (a) gmail.com", "mailman_id": null, "emails": null }, "sender_name": "Mark Vandewettering", "subject": "[amsat-bb] Re: Observations From Norway.", "date": "2008-01-15T16:40:04Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/5XMNRLSP6U2JTWGGD3ASTIXP53OF5CHA/", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VHJNKK5BXEUFWLMFQICKRW5GCN33RDDV/" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "\nOn Jan 15, 2008, at 3:25 AM, John Hackett wrote:\n>\n> OBSERVATIONS FROM NORWAY\n> LA2QAA\n> 14 January 2008\n> An experiment,\n>\n>\n>\n> As many of us are aware, the average age of Hams is creeping up and \n> satellite\n> operators are no exception - we're heading faster toward \n> 'extinction' as opposed\n> to distinction.\n\nMy own opinions on this matter fall somewhere between rosy optimism \nand dire\npessimism. Amateur radio is certainly changing, but it would be a \nsad, sad thing\nif it were not. We should be concerned about the greying of our \npopulation, but\nwe shouldn't panic about it. If we were really concerned about \nnumbers, we'd\nremove licensing requirements entirely and find manufacturers to package\nradios to look like cell phones. That would help swell our numbers, \nbut it wouldn't\nreally be amateur radio any more.\\\n\n> The much debated 'no code' exam - (to encourage more younger \n> amateurs) - has,\n> IMHO - had the complete opposite effect. With MSN and SMS why bother \n> with\n> Amateur Radio? ... the answer would be ... to do something you \n> *CAN'T* do on\n> your pet computer.\n\nMorse code should have been dropped long ago. While a fun mode (for \nsome\nat least), it occupied a special niche in the regulations which far \nexceeded any\npractical reason for its retention. On the other hand, the idea that \nMorse kept\nlarge numbers of young people _differentially_ from becoming hands is, \nI admit,\nrather absurd.\n\n> So what can be done to turn around the negative trend of this sad \n> state of\n> affairs?. I don't pretend to have all the answers ... however ...\n>\n> One possible solution is to attract more of the 'FM only' amateurs \n> onto linear\n> satellites, to explore other means of communication so that they're \n> not 'stuck'\n> with the boring 'single user' solution.\n\nI must admit that I'm a little dismayed by the constant barrage of \nnegative comments\nthat people seem to heap on the FM sats in this forum. I've been \nhaving a blast\noperating QRP style with a Kenwood TH-D7A and my trusty Arrow. From my\nQTH in CM87, I've worked Hawaii, Socorros Island, Fairbanks, Manitoba, \nSouth\nCarolina: it's been a blast. Yes, they are single user satellites, \nand they can\nbe crowded, but I've also had to call CQ on AO-51 a couple of times in \nthe past\nmonth (before it crashed, sigh) because nobody was on the bird.\n\n>\n> The usual fly in the ointment excuse, here is ... \"but I haven't \n> got any gear\n> capable of for example CW\" ... which is of course an excuse that is \n> as weak as\n> 'hiss' with a capital P.\n>\n> It is perfectly feasible to modulate an FM signal by switching on \n> and off the\n> carrier ... some people have used the PTT button to achieve this \n> but a more\n> elegant solution is to feed a controlled CW signal directly into the \n> microphone\n> input of an FM ... A.K.A. MCW modulation.\n>\n> Ahh! ... anti-social behaviour you say, sending 'FM' on a linear \n> satellite - due\n> to the power budget, since FM is a 100% duty cycle mode ...\n>\n> BUT !!! ... if one were to QRP by 25% as well as increase the aerial \n> efficiency\n> by 25% - (or any permutation giving the same results) - one would \n> *NOT* be\n> 'hogging' any more of the available transponder power than one \n> normally would on\n> a linear satellite.\n\nI must admit, that's a novel suggestion that I had not heard of \nbefore. But doesn't\nthis idea hog more of the available *bandwidth* on the transponder? \nI'd think that\nwould be considered rather anti-social as well. Is this kind of \noperation considered\nkosher?\n\n\n> Remember, the difference between a satellite signal at the horizon \n> and at TCA (\n> time of closest approach) - is quite dramatic ... (not that many \n> people bother\n> to regulate their power for ... \"enough to do the job\" ... or, as \n> Bill used to\n> say ... \"Tis' vain to do with more, that which can be done with less\".\n>\n> (\"Bill\" = William of Occam 1347).\n>\n> Regular users of AO-7 will be aware that while activity has \n> increased this last\n> 12 months in the afternoon and evening passes, the morning passes \n> are still for\n> all intents and purposes devoid of any signal at all.\n>\n> The increased use of AO-7 is most likely due to a lack of other \n> 'linear'\n> satellites,\n\nWell, and the rather interesting \"cool\" factor of working on a 30+ \nyear old satellite.\n\n> VO-52's apparent lack of activity is most probably due to the low\n> orbit which results in an increased Doppler rate and smaller \n> footprint. AO-7\n> does provide for 6500km footprints on a daily basis.\n\nWhich is another reason that it's pretty neat to work.\n\n> Due to above \"waffling\" ... I intend to conduct a few QRP FM \n> experiments on the\n> mode-B morning passes. If you happen to hear an AO-7 'woodpecker' \n> you might like\n> to try switching to FM for a moment to see if you can hear some CW.\n\nI'll have a listen.\n\n>\n> As long as you keep your power low ... (LIMA - OSCAR - WHISKEY \n> folks) ... QRP\n> PLEASE ... you signal won't be any more detrimental than a CW or SSB \n> one. Of\n> course, you *WILL* have to take the bananas out of your ears and use \n> them as\n> they were intended ... to listen !!!!!.\n\nI'm curious though: you began this message with a cry that we need to \nget more young\npeople involved in amateur radio, and this was apparently your \nsuggestion. In what\nway do you think this suggestion accomplishes your goals? Yes, it \nallows people to\nwork a different mode on a satellite that they may not be familiar \nwith, but it isn't exactly\nthe friendliest or even the most useful path to satellites, and I \ndon't see how it\naddresses anything specifically of interest to young people. Did I \nmiss something?\n\n\tMark\n\n\n> 73 John. <[email protected]>\n>\n>\n>\n> _______________________________________________\n> Sent via [email protected]. Opinions expressed are those of the \n> author.\n> Not an AMSAT-NA member? Join now to support the amateur satellite \n> program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n", "attachments": [] }