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    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/Z3E57U2HAOSUOBXMEBJFTOONWUVIR6UY/?format=api",
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    "message_id": "CAPvDab2W0-PsO=TSVsuqDYtxPSzn4A4BFTZ+=iKrcS96TpRpag@mail.gmail.com",
    "message_id_hash": "Z3E57U2HAOSUOBXMEBJFTOONWUVIR6UY",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/KOCY3TKFCEGBJSGXX5NESUH2FSQFGQGV/?format=api",
    "sender": {
        "address": "badencapecod (a) gmail.com",
        "mailman_id": "228ae4f5c3d547ef8d3f4c2b1e03205d",
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    "sender_name": "Wes Baden",
    "subject": "[AMSAT-BB] Re: XW-3 issues and tips for success?",
    "date": "2022-01-02T00:25:25Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BHJ5YHNMGDWPC2KXGPHJU2F5IEDIKPMN/?format=api",
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    "content": "Tried XW-3 for the first time on its 0006 UTC pass a few minutes ago. 7\nminute pass to the NE, 4 degrees max above the horizon. Called CQ on CW.\nHad no trouble copying my downlink for 5 minutes, though, by ear, I’d give\nmyself an S4 report. Using an ICOM 9700 + 9ELx2 on RX, 50W + 4EL on TX.\nHeard no responses. Will try again this next pass tonight, still on CW.\n\nWes NA1ME\nFN54 Maine\n\nOn Sat, Jan 1, 2022 at 5:59 PM Bob Johnson <[email protected]> wrote:\n\n> We're grateful the Chinese and Russians are putting up satellites for us\n> to \"play\" with.  Anyone have Elon's ear?\n> 73 Bob W7LRD\n>\n> On 01/01/2022 1:55 PM Michael Walker <[email protected]> wrote:\n>\n>\n> So many people said the correct things.  Kudos to you for supporting\n> XW-3!!\n>\n> Space is not the exact science we would like it to be.\n>\n> And, for those with less than professional results - Gmail has a great\n> 'block sender' feature.  I use it often as it keeps my cortisol levels\n> down.  LOL\n>\n> Mike va3mw\n>\n>\n> On Sat, Jan 1, 2022 at 4:50 PM Les Rayburn <[email protected]> wrote:\n>\n> John is quite right. We should all be grateful for satellite builders,\n> regardless of nationality. These remarks have no place on this reflector or\n> in our community.\n>\n> 73,\n>\n> Les Rayburn, N1LF\n> Maylene, AL\n> EM63nf\n> AMSAT #38965, ARRL Life Member, CVHS Life Member, SVHF Member\n>\n>\n>\n>\n>\n> On Jan 1, 2022, at 12:55 PM, John Brier <[email protected]> wrote:\n>\n> I certainly don't expect a perfectly performing satellite that I didn't\n> pay anything for. It's a hobby, not a commercial service.\n>\n> I'm grateful to all satellite builders, Including Chinese builders. They\n> have sent up more amateur sats in the past few years than any other country\n> AFAICT. Certainly a lot for one country. And the previous ones have been\n> and still are a pleasure to work.\n>\n> It is a little ridiculous to dismiss them when many amateur sats,\n> including American ones, have issues.\n>\n> 73, John Brier KG4AKV\n>\n>\n> On Sat, Jan 1, 2022, 13:30 Nigel A. Gunn G8IFF/W8IFF <[email protected]>\n> wrote:\n>\n> What do you expect?\n> Chinese electronics, it sort of works, most of the time, for most people,\n> but doesn't do anything properly.\n>\n>\n> > On 01/01/2022 11:54 Michael Walker <[email protected]> wrote:\n> >\n> >\n> > I just watched the pass a few minutes ago.\n> >\n> > Downlink signals were really weak. Maybe the antenna isn't deployed.\n> >\n> > The beacon was booming. As I was using a Flex 6600, I was able to watch\n> the beacon in 1 receiver and the 2 QSO's in the other receiver.\n> >\n> > I was able to see my uplink it is was about where I would expect it.\n> >\n> > Mike va3mw\n> >\n> >\n> >\n> > On Sat, Jan 1, 2022 at 11:25 AM William Herbert Sims <\n> [email protected]> wrote:\n> > > Here are some more observations:\n> > >  1) The passband is 30KHz wide but it is not symmetrical (more like\n> -10 to +20KHz)\n> > >  2) You can hear the noise fall off from the transmitter around these\n> band edges.\n> > >  3) Almost overhead pass and I was using 50W and still did not have a\n> strong signal\n> > >\n> > >  Herb\n> > >\n> > >  On 1/1/22, 9:13 AM, \"John Brier\" <[email protected]> wrote:\n> > >\n> > >  I did have success on the 02:16z pass last night. I contacted N2ACQ.\n> I\n> > >  also heard VA3ECO very weakly at the end of the pass but couldn't\n> make\n> > >  contact. It was 25 degree pass over the Atlantic. I had to use 70+\n> > >  watts with my Arrow II to hear myself. One other person on Twitter\n> > >  said they had to use 75 watts to hear themselves as well. Not sure of\n> > >  their antenna/feedline, though.\n> > >\n> > >  73, John Brier KG4AKV\n> > >\n> > >  On Fri, Dec 31, 2021 at 8:28 PM John Brier <[email protected]>\n> wrote:\n> > >  >\n> > >  > Thanks, Craig, and Herb. This is exactly the kind of info I was\n> looking for.\n> > >  >\n> > >  > 73\n> > >  >\n> > >  > On Fri, Dec 31, 2021 at 8:26 PM William Herbert Sims\n> > >  > <[email protected]> wrote:\n> > >  > >\n> > >  > > Not to mention the coherence between uplink and downlink. One\n> high pass I was showing a 3.5KHz offset between uplink and downlink\n> frequencies. The next pass (15'ish degs) the downlink was drifting severly\n> (yes, my Doppler was accounted for)....I think they have some thermal\n> issues to work out. It's a new spacecraft so some issues is a given.\n> > >  > >\n> > >  > > Herb\n> > >  > >\n> > >  > > On 12/31/21, 6:41 PM, \"D. Craig Fox\" <[email protected]> wrote:\n> > >  > >\n> > >  > > John, I was on a 12 deg CAS-3 pass earlier today. I really did\n> not hear myself until max elevation and even then my downlink was marginal\n> with TS2Kx, 5el up, 11 el down, no preamps. I have been on several evening\n> passes including my first QSO on it with Christy, KB6LTY. Very few stations\n> heard. While I lack the technical skills of John K8YSE to provide any\n> graphical analysis, speaking entirely subjectively, I can confirm that the\n> downlink is not particularly strong compared to, say, XW-2F or CAS4B,\n> especially on the earlier 12 deg pass, and the transponder's passband noise\n> is quite noticeable and definitely would cover weaker stations. The noise\n> reminds me of the noise in JO-97's passband. When I worked Christy it was a\n> much higher pass and the downlink was sufficiently strong until I lost it\n> somewhere around the 15 deg point when descending. My Doppler file is set\n> up right at .180 for the downlink and that is where I have hovered, except\n> to move up or down to avoid the nois\n>  e.\n> > >  > >\n> > >  > > I believe my first uplink calibration was around 900 hz, so it\n> was already pretty close and did not require much searching for my\n> downlink. Of course, YMMV\n> > >  > >\n> > >  > > I am sure others would appreciate a summary of operation\n> suggestions.\n> > >  > >\n> > >  > > HNY satops!\n> > >  > >\n> > >  > > 73, Craig\n> > >  > > N6RSX DM 13\n> > >  > >\n> > >  > > -----Original Message-----\n> > >  > > From: John Brier <[email protected]>\n> > >  > > Sent: Friday, December 31, 2021 3:44 PM\n> > >  > > To: AMSAT BB <[email protected]>\n> > >  > > Subject: [AMSAT-BB] XW-3 issues and tips for success?\n> > >  > >\n> > >  > > So, I tried XW-3/CAS-9 on the first orbit and once later but\n> didn't have any luck finding myself on the downlink. I want to try again\n> but it seems the bird has issues and I'd like to understand more about\n> those issues so I can have better luck next time I try.\n> > >  > >\n> > >  > > On Twitter I've heard others say the sat is weak, has high SWR,\n> not a sensitive receiver, noisy at TCA, fluctuating AGC, etc. It's also\n> possible that the RX sensitivity issue is only bad at the edges of the\n> passband, forcing people to work in the center. Has anyone confirmed that?\n> What's up with the AGC?\n> > >  > >\n> > >  > > What kind of uplink power/ERP is required/recommended?\n> > >  > >\n> > >  > > Maybe we can come up with some general tips to make successful\n> contacts on this bird more likely.\n> > >  > >\n> > >  > > 73, John Brier KG4AKV\n> > >  > >\n> > >  > > https://twitter.com/k8yse/status/1476022600593809411\n> > >  > > https://twitter.com/k8yse/status/1476047464796987400\n> > >  > > https://twitter.com/dk3wn/status/1476276565285687312\n> > >  > >\n> > >  > > -----------------------------------------------------------\n> > >  > >\n> > >  > > Sent via AMSAT-BB(a)amsat.org (http://amsat.org). AMSAT-NA makes\n> this open forum available to all interested persons worldwide without\n> requiring membership. Opinions expressed are solely those of the author,\n> and do not reflect the official views of AMSAT-NA.\n> > >  > > Acceptable Use and Privacy Policies available at\n> https://www.amsat.org/about-amsat/\n> > >  > >\n> > >  > > View archives of this mailing list at\n> > >  > > https://mailman.amsat.org/hyperkitty/list/[email protected]\n> > >  > > To unsubscribe send an email to amsat-bb-leave(a)amsat.org (\n> http://amsat.org) Manage all of your AMSAT-NA mailing list preferences at\n> https://mailman.amsat.org\n> > >  > >\n> > >  > >\n> > >  > > (If this message is spam, please report it to IT Dept. Thank\n> you.)\n> > >  > >\n> > >  > >\n> > >  > > NOTICE: This communication may contain privileged or other\n> confidential information. If you are not the intended recipient of this\n> communication, or an employee or agent responsible for delivering this\n> communication to the intended recipient, please advise the sender by reply\n> email and immediately delete the message and any attachments without\n> copying or disclosing the contents. Thank you.\n> > >  > > -----------------------------------------------------------\n> > >  > >\n> > >  > > Sent via AMSAT-BB(a)amsat.org (http://amsat.org). AMSAT-NA makes\n> this open forum available\n> > >  > > to all interested persons worldwide without requiring membership.\n> Opinions expressed\n> > >  > > are solely those of the author, and do not reflect the official\n> views of AMSAT-NA.\n> > >  > > Acceptable Use and Privacy Policies available at\n> https://www.amsat.org/about-amsat/\n> > >  > >\n> > >  > > View archives of this mailing list at\n> > >  > > https://mailman.amsat.org/hyperkitty/list/[email protected]\n> > >  > > To unsubscribe send an email to amsat-bb-leave(a)amsat.org (\n> http://amsat.org)\n> > >  > > Manage all of your AMSAT-NA mailing list preferences at\n> https://mailman.amsat.org\n> > >  > >\n> > >  > >\n> > >\n> > >\n> > >\n> > >\n> > >  -----------------------------------------------------------\n> > >\n> > >  Sent via AMSAT-BB(a)amsat.org (http://amsat.org). AMSAT-NA makes\n> this open forum available\n> > >  to all interested persons worldwide without requiring membership.\n> Opinions expressed\n> > >  are solely those of the author, and do not reflect the official views\n> of AMSAT-NA.\n> > >  Acceptable Use and Privacy Policies available at\n> https://www.amsat.org/about-amsat/\n> > >\n> > >  View archives of this mailing list at\n> > >  https://mailman.amsat.org/hyperkitty/list/[email protected]\n> > >  To unsubscribe send an email to amsat-bb-leave(a)amsat.org (\n> http://amsat.org)\n> > >  Manage all of your AMSAT-NA mailing list preferences at\n> https://mailman.amsat.org\n> > ----------------------------------------------------------- Sent via\n> AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all\n> interested persons worldwide without requiring membership. Opinions\n> expressed are solely those of the author, and do not reflect the official\n> views of AMSAT-NA. Acceptable Use and Privacy Policies available at\n> https://www.amsat.org/about-amsat/ View archives of this mailing list at\n> https://mailman.amsat.org/hyperkitty/list/[email protected] To\n> unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of\n> your AMSAT-NA mailing list preferences at https://mailman.amsat.org\n>\n> Nigel A. Gunn, ///shoulders.outwards.resolutions tel +1-937-971-0366\n> Amateur Radio G8IFF W8IFF and GMRS WRBV701, e-mail [email protected] www\n> http://www.ngunn.net\n>\n> -----------------------------------------------------------\n>\n> Sent via AMSAT-BB(a)amsat.org. 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> Acceptable Use and Privacy Policies available at\n> https://www.amsat.org/about-amsat/\n>\n> View archives of this mailing list at\n> https://mailman.amsat.org/hyperkitty/list/[email protected]\n> To unsubscribe send an email to amsat-bb-leave(a)amsat.org\n> Manage all of your AMSAT-NA mailing list preferences at\n> https://mailman.amsat.org\n>\n>\n> -----------------------------------------------------------\n>\n> Sent via AMSAT-BB(a)amsat.org. 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> Acceptable Use and Privacy Policies available at\n> https://www.amsat.org/about-amsat/\n>\n> View archives of this mailing list at\n> https://mailman.amsat.org/hyperkitty/list/[email protected]\n> To unsubscribe send an email to amsat-bb-leave(a)amsat.org\n> Manage all of your AMSAT-NA mailing list preferences at\n> https://mailman.amsat.org\n>\n>\n>\n> -----------------------------------------------------------\n>\n> Sent via AMSAT-BB(a)amsat.org. 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> Acceptable Use and Privacy Policies available at\n> https://www.amsat.org/about-amsat/\n>\n> View archives of this mailing list at\n> https://mailman.amsat.org/hyperkitty/list/[email protected]\n> To unsubscribe send an email to amsat-bb-leave(a)amsat.org\n> Manage all of your AMSAT-NA mailing list preferences at\n> https://mailman.amsat.org\n>\n>\n> -----------------------------------------------------------\n>\n> Sent via AMSAT-BB(a)amsat.org. 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> Acceptable Use and Privacy Policies available at\n> https://www.amsat.org/about-amsat/\n>\n> View archives of this mailing list at\n> https://mailman.amsat.org/hyperkitty/list/[email protected]\n> To unsubscribe send an email to amsat-bb-leave(a)amsat.org\n> Manage all of your AMSAT-NA mailing list preferences at\n> https://mailman.amsat.org\n\n\n",
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