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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/JDG7S3YAY6AHRCLQZRQGXPAYNAUESHLT/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "JDG7S3YAY6AHRCLQZRQGXPAYNAUESHLT",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/P6MLXNU24HNCE5IGCGKOMDCGUPNM4ODI/?format=api",
    "sender": {
        "address": "cjhurst (a) bigpond.net.au",
        "mailman_id": "4cf6aa7c5aa149e88ce967dd5e9e2913",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/4cf6aa7c5aa149e88ce967dd5e9e2913/emails/?format=api"
    },
    "sender_name": "Colin Hurst",
    "subject": "[amsat-bb] Re: XW-1 QSO and packet attempt",
    "date": "2009-12-21T07:28:35Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/JY7G2GW7YCUW5TSUHN3RTX4BTYOZ2ONY/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Luc,\nPlease look at Mike DK3WN's post to the -bb on 19th December.\nThe FM and the AFSK Digital are operational at the \"same\" time.\nIf you no longer have that mail please listen to the audio at\nhttp://www.dk3wn.info/p/?p=10091\nBest regards,\nColin VK5HI.\n\n\n> -----Original Message-----\n> From: [email protected] [mailto:[email protected]]On\n> Behalf Of Luc Leblanc\n> Sent: Monday, 21 December 2009 15:25\n> To: [email protected]\n> Cc: [email protected]\n> Subject: [amsat-bb] Re: XW-1 QSO and packet attempt\n>\n>\n> On 20 Dec 2009 at 22:05, Sebastian wrote:\n>\n> Date sent:      \tSun, 20 Dec 2009 22:05:48 -0500\n> From:           \tSebastian <[email protected]>\n> Subject:        \t[amsat-bb] Re: XW-1 QSO and packet attempt\n> To:             \tAMSAT BB <[email protected]>\n>\n> > Luc (VE2DWE) has some magic in his antennas, as I consistently\n> heard him pretty much all through the pass.\n> >\n>\n> John K8YSE wrote:  It could have been that the BBS stops the voice\n> repeater but there were times that VE2DWE was making it (although\n> noisy) and my signal was not there at all.  Maybe the amount of\n> deviation on the tone makes a difference when there are a lot of\n> competing signals on the input.\n>\n> As the bird sank low on the horizon on the way north, it was again\n> possible to get into it.  Normally there are not many who get\n> into any satellite that is in northern Canada.  Less congestion on\n> the input gives you a better chance.\n>\n>\n>\n> > I heard Drew mention that perhaps due to the PL tone and the\n> large number of stations trying to use the repeater, very few\n> stations were able to make a QSO.\n> >\n> >\n>\n> Three problems: as with AO-51 the CTCSS tone is blocking a lot\n> of station it was the same when ISS cross band repeater was on\n> too. When XW-\n> 1 was over central USA his footprint was covering nearly all the\n> Northern continent including central america and the Carribean\n> island with\n> all the Northern satellite station in the same footprint it\n> should be a challenge at the satellite receiver to have one\n> station able to\n> make it through that's the second one and for the third one the\n> packet BBS also is competing at the receiver and i'm guessing at the\n> transceiver too as i never heard the packet transmission over a\n> phone transmission. Without any knowledge of the ways the transmitter is\n> voting or who's got the priority first it is hard to tell if\n> this packet turn over is not also a contributing factor as many of my\n> transmissions where shut down to just get a packet burst afterwards?\n>\n> I missed the linear transponder but i'm guessing it will be \"The\n> mode\" on XW-1 as per what i heard from the recordings.\n>\n> It is a great sat and as i wrote a nice christmas gift with\n> SO-67 as a suggestion the FM/BBS mode can be put in service in\n> light traffic\n> pass as it is permitting less traffic than the linear\n> transponder, but it can be an alternance of both. Let see what\n> the european pass will\n> give as the whole europe will be in the same footprint!!!.\n>\n> For the magic in my antennas there is none that i know but\n> operating in full duplex is a big help as you can choose when to\n> key the TX but\n> as we cannot get a constant TX from the satellite we probably\n> often transmit over each other Letting the receiver only\n> activated by the\n> carrier will at least make us hear through the capture effect\n> and it will tell us when it's time to TX? It will not solved the\n> tailgating\n> problem but it will help.\n>\n> P.S. There is also a trick on XW-1 as there was one on SO-67 i\n> will have to check it again but he's not much nicer than the one\n> i discover\n> on SO-67 fighting against the 3 seconds timer... Just remember i\n> wrote \"fighting\"!\n>\n>\n> \"-\"\n>\n>\n> Luc Leblanc VE2DWE\n> Skype VE2DWE\n> www.qsl.net/ve2dwe\n> DSTAR urcall VE2DWE\n> WAC BASIC CW PHONE SATELLITE\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\n> satellite program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n",
    "attachments": []
}