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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/3ZEKCWTUVHWRANIJAXTRNQJZDBXZLKHD/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "3ZEKCWTUVHWRANIJAXTRNQJZDBXZLKHD", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/ZX7OQE6QABJH6EOOGJH2E3O3YHEU3MTR/", "sender": { "address": "vk2pet (a) internode.on.net", "mailman_id": "e2fb2bb85e0c4edd9e6802c668fab24c", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/e2fb2bb85e0c4edd9e6802c668fab24c/emails/" }, "sender_name": "Pete vk2pet", "subject": "[AMSAT-BB] Re: CAPE-3 Updates and iGate Request", "date": "2021-02-03T23:42:00Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VVAQMLI2OWCANZF7L3HT547CPL6GGJYX/", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/WBP63HU3JPM2LFLGR3CCYGNGJES4L4WA/" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hi Every one,\n\nDoes anyone have GNU radio flow chart all ready setup for igating CAPE-3 \nuhf aprs?\n\nI have a b100 that I'm happy to use to get the packets of CAPE-3.\n\nLocated in SE Australia.\n\nPete\n\nVK2PET.\n\nOn 4/02/2021 8:17 am, Mark Jessop wrote:\n> No, it is not a 'standard' 70cm APRS frequency - that's going to vary \n> from country to country, and would be outside of the satellite segment \n> anyway.\n>\n> CAPE-3 transmits on 437.325 MHz.\n>\n> The SatNOGS network is getting packets fairly regularly: \n> https://network.satnogs.org/observations/?future=0&bad=0&unknown=0&failed=0&norad=47309&observer=&station=&start=&end= \n> <https://network.satnogs.org/observations/?future=0&bad=0&unknown=0&failed=0&norad=47309&observer=&station=&start=&end=>\n>\n> 73\n> Mark VK5QI\n>\n> On Thu, Feb 4, 2021 at 12:14 AM Lynn W Deffenbaugh (Mr) \n> <[email protected] <mailto:[email protected]>> wrote:\n>\n> For those of us not tracking the full details of the CAPE-3\n> satellite, what is the specific UHF frequency on which you'd like\n> IGates to listen for packets? And also if you can include the\n> satellite catalog number, it would assist in making sure I'm\n> listening at the right pass times for my QTH.\n>\n> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32\n>\n>\n>\n> On 2/2/2021 11:25 PM, Rizwan Merchant wrote:\n>> Hello All,\n>>\n>> I wanted to give a quick update on CAPE-3, and where we are in\n>> mission goals. However, first I'd like to thank everyone who has\n>> taken part in helping track CAPE-3 and gather data for us to\n>> analyze the state of the satellite in orbit. Without the\n>> wonderful support of the community, we might be still trying to\n>> capture enough information to determine our status.\n>>\n>> So from all reports, it seems CAPE-3 is indeed healthy in orbit.\n>> Our power system seems to be working as intended and UHF\n>> transmitters seem healthy. However, we're suspecting the VHF\n>> radio is dead on arrival. We've not seen any indication of it\n>> functioning in orbit, which aligns with a fear we had prior to\n>> integration.\n>>\n>> Using this information, our team is now devising plans to begin\n>> testing individual subsystems on the satellite to gauge the\n>> health of those. This might take a few more weeks to validate and\n>> provide an update on what capabilities we can still carry out, as\n>> we update our ground systems.\n>>\n>> As reported in DK3WN's blog:\n>> https://www.satblog.info/new-cape-3-beacons/\n>> <https://www.satblog.info/new-cape-3-beacons/> we have seen\n>> reports of CAPE-3 attempting to email home with health data.\n>> However we have come across two issues with the APRS services our\n>> satellite performs (email and tweeting).\n>>\n>> 1.) Our satellite from what we can tell only has a functional UHF\n>> radio, and is able to transmit the packet correctly. However, we\n>> don't believe CAPE-3 will find many iGates listening on UHF\n>> frequencies to gate packets for it. If there are any operators\n>> out there with iGates I'd like to humbly request help in setting\n>> up a few UHF iGate stations in different areas to help gate our\n>> packets back into the APRS.\n>>\n>> 2.) We are not able to validate the email packets will\n>> reliably come out once every hour and half as we initially\n>> believed. Due to the way we designed the satellite, the APRS\n>> functions will be transmitted on whichever radio our satellite\n>> thinks is active. At current, CAPE-3 thinks it has a functional\n>> UHF and VHF, so there will most likely be many failed attempts\n>> made on VHF. We're hoping to gather enough data from email packet\n>> timestamps to figure out a new frequency of when email UHF\n>> packets will be sent out.\n>>\n>> Once we're further in our testing and verification phase, we'll\n>> make attempts to shut down the VHF radio on the satellite to\n>> improve reliability of these functions.\n>>\n>> Note these two functions are supported by custom software we're\n>> using to check APRS-IS feeds for our packets to email and tweet\n>> out. I'm planning to make a release of information to allow the\n>> community to test out this server, and am hoping to make that\n>> information public by this weekend. I'm running a few tests to\n>> make sure things still work as intended on the ground end in my\n>> free time in the evenings after work.\n>>\n>> So if anyone is able to switch their iGates, or make a UHF iGate\n>> to help track CAPE-3 email packets, we'd be really grateful for\n>> the help! We've turned on one at our University as well.\n>>\n>> Thanks all, I apologize if this email was wordy, but I felt it\n>> necessary to be fully transparent on what we're planning to do to\n>> help you help us with our mission goals. :)\n>>\n>> 73\n>>\n>> Sincerely,\n>> Rizwan Merchant\n>> KF5BNL\n>>\n>> -----------------------------------------------------------\n>>\n>> Sent via AMSAT-BB(a)amsat.org <http://amsat.org>. AMSAT-NA makes this open forum available\n>> to all interested persons worldwide without requiring membership. Opinions expressed\n>> are solely those of the author, and do not reflect the official views of AMSAT-NA.\n>> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n>>\n>> View archives of this mailing list at\n>> https://mailman.amsat.org/hyperkitty/list/[email protected] <https://mailman.amsat.org/hyperkitty/list/[email protected]>\n>> To unsubscribe send an email to amsat-bb-leave(a)amsat.org <http://amsat.org>\n>> Manage all of your AMSAT-NA mailing list preferences athttps://mailman.amsat.org <https://mailman.amsat.org>\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\n> views of AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite\n> program!\n>\n> View archives of this mailing list at\n> https://mailman.amsat.org/hyperkitty/list/[email protected]\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 <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 expressed\n> are solely those of the author, and do not reflect the official views of AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\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 https://mailman.amsat.org\n\n\n", "attachments": [ { "email": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/3ZEKCWTUVHWRANIJAXTRNQJZDBXZLKHD/", "counter": 2, "name": "attachment.html", "content_type": "text/html", "encoding": "utf-8", "size": 12250, "download": "https://mailman.amsat.org/hyperkitty/list/[email protected]/message/3ZEKCWTUVHWRANIJAXTRNQJZDBXZLKHD/attachment/2/attachment.html" } ] }