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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/TQBOEPVEORYWTCTJZPU26ET3GWRXQTNJ/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "CAPq=p5FHM7baGfjFicJvsh4NhXbTjzU=n9AAZmUqEtoMOQiiqQ@mail.gmail.com", "message_id_hash": "TQBOEPVEORYWTCTJZPU26ET3GWRXQTNJ", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/XKD2F5JAYKFZLHGZ3BLFXQFVRSJ6BLLW/", "sender": { "address": "straarup (a) gmail.com", "mailman_id": "771844d0762b4c53b76d3da15f9bbfbc", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/771844d0762b4c53b76d3da15f9bbfbc/emails/" }, "sender_name": "Søren Straarup", "subject": "Re: [amsat-bb] AO-7 status?", "date": "2018-01-05T13:05:05Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/XKD2F5JAYKFZLHGZ3BLFXQFVRSJ6BLLW/", "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hi Nick,\n\nWith AO-7 I would recommend practicing ahead.\n\nAlso on AO-7 low power is essential. As Paul mentioned, if the total power\nconsumption gets too high it flips into mode A.. Also know as: flipping the\nbird. Some times there is an early warning when signals starts FM'ing,\nother times no warning.\n\nI would recommend running no more than 5W into an Arrow antenna.\n\nVy 73 de AK4WQ/OZ2DAK, Soren Straarup\n\nOn Jan 3, 2018 21:27, \"Nick Hart\" <[email protected]> wrote:\n\n> Great input, Paul!\n>\n> Thank you, and 73!\n>\n> Nick\n> KK6ZLF\n>\n> ------ Original Message ------\n> Received: Wed, 03 Jan 2018 07:09:51 PM PST\n> From: Paul Stoetzer <[email protected]>\n> To: Nick Hart <[email protected]>Cc: Greg D <[email protected]>,\n> [email protected]\n> Subject: Re: [amsat-bb] AO-7 status?\n>\n> AO-7 has generally been stable for the past several months. In the Northern\n> Hemisphere spring and summer months, it has been quite unstable, easily\n> switching out of Mode B when signals are present in the passband. This is\n> likely due to the sun's angle on the solar panels. AO-7 has no panels on\n> the \"top\" or \"bottom\" of the satellite, and with AO-7's current orbit, the\n> sun is not in an ideal position to illuminate the satellite's solar panels\n> during the Northern Hemisphere summer.\n>\n> For a demo next week, AO-7 has an excellent shot of being active in Mode B.\n> Next month, or in March, the chances may be less.\n>\n> 73,\n>\n> Paul, N8HM\n>\n> On Wed, Jan 3, 2018 at 9:22 PM, Nick Hart <[email protected]> wrote:\n>\n> > Absolutely agreed, Greg,\n> >\n> > We're just limited to what's passing over during the club meeting for the\n> > kids\n> > this month. We'll have one or two more club meetings between now and\n> ARISS\n> > day. But, we adults who are working the event will have it dialed in by\n> > the\n> > time of the ARISS QSO.\n> >\n> > Thanks!\n> >\n> > Nick\n> >\n> > To: Nick Hart <[email protected]>Cc: [email protected]\n> > Subject: Re: [amsat-bb] AO-7 status?\n> >\n> > Nick,\n> >\n> > If you want some practice ahead of the ARISS event (really good idea!),\n> > it might be a more relevant experience to get a few of the FM birds\n> > under your belt. AO-85, AO-91, SO-50. Perhaps track the ISS via Packet\n> > (when/if they get the packet station back on the air), to get a feel for\n> > that system. Also watch for any ARISS events that you can listen in on\n> > (for example, the telebridge contacts through W6SRJ in Santa Rosa).\n> >\n> > Some of the ground station operations, either direct or telebridge, have\n> > been documented on YouTube. Also worth a watch.\n> >\n> > As for AO-7, first look at the status logs on Amsat.org\n> > (http://www.amsat.org/status/); seems like it's pretty much been in Mode\n> > B (70cm up, 2m down), but that can change as the satellite's eclipse\n> > schedule changes over the course of the year. Otherwise, it is\n> > definitely a daylight-only bird (as seen by the satellite, not\n> > necessarily here on the ground).\n> >\n> > Best of luck for your contact,\n> >\n> > Greg KO6TH\n> >\n> >\n> > Nick Hart wrote:\n> > > Good afternoon,\n> > >\n> > > KK6ZLF in CM87. I am elmering a radio club at the local middle school,\n> > and\n> > we\n> > > have a scheduled ARISS QSO coming up in March.\n> > >\n> > > A week from tomorrow, we're going to try to do a few QSOs on the\n> > available\n> > > birds during the club meeting, 22 to 23:00 zulu. One of the passes is\n> > AO-7.\n> > I\n> > > saw on the AMSAT site that it is working strictly on solar power. But,\n> > this\n> > > should be a good daytime pass for us.\n> > >\n> > > Does anyone have any recent experience and advice for AO-7?\n> > >\n> > > Thanks, and 73!\n> > >\n> > > Nick\n> > >\n> > > KK6ZLF\n> > >\n> > > _______________________________________________\n> > > Sent via [email protected]. AMSAT-NA makes this open forum available\n> > > to all interested persons worldwide without requiring membership.\n> > Opinions\n> > expressed\n> > > are solely those of the author, and do not reflect the official views\n> of\n> > AMSAT-NA.\n> > > Not an AMSAT-NA member? Join now to support the amateur satellite\n> > program!\n> > > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n> >\n> >\n> >\n> > _______________________________________________\n> > Sent via [email protected]. AMSAT-NA makes this open forum available\n> > to all interested persons worldwide without requiring membership.\n> Opinions\n> > expressed\n> > are solely those of the author, and do not reflect the official views of\n> > AMSAT-NA.\n> > Not an AMSAT-NA member? Join now to support the amateur satellite\n> program!\n> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n> >\n>\n>\n>\n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions\n> expressed\n> are solely those of the author, and do not reflect the official views of\n> AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n>\n", "attachments": [] }