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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ACCPQE5S7F3QHC6WYRU3FLRLGNNRKTFT/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "755C7EA3ECDD42E8A3D32B319C6455E1@OsbornesPC", "message_id_hash": "ACCPQE5S7F3QHC6WYRU3FLRLGNNRKTFT", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/NATOQLG2Z3ESUV44WUPTDWF7RY5GPQT6/?format=api", "sender": { "address": "wandtosborne (a) gmail.com", "mailman_id": "e0efce0b56004e129f9360474b5a7a08", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/e0efce0b56004e129f9360474b5a7a08/emails/?format=api" }, "sender_name": "Wendy and Terry Osborne", "subject": "Re: [amsat-bb] Linear Transponder Up and Down link\tfrequencycalculator", "date": "2019-05-01T03:17:02Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/DJNZTFCYGIE4BERZCY3XPQO4XFDKOVP6/?format=api", "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hi,\n\nThe idea was to create a simple tool that is an electronic version of the \nlaminated frequency guide that you get with\nAMSAT membership.\nI initially thought of using Excel but quickly concluded it was easier to \nwrite it in MS Visual Basic Express 2008.\nI have put the source code into the dropbox folder so people can look at it \nif they wish.\nYou will need a version of VB.net to make sense of it.\n\n73,\nTerry Osborne ZL2BAC\n\n-----Original Message----- \nFrom: Mike Diehl via AMSAT-BB\nSent: Wednesday, May 01, 2019 2:19 PM\nTo: [email protected] ; Mark D. Johns\nCc: AMSAT-BB\nSubject: Re: [amsat-bb] Linear Transponder Up and Down link \nfrequencycalculator\n\nI think you’re both missing something. The developer created a tool to suit \na particular purpose for them. Both of your approaches are like suggesting a \nmulti-tool when all they need to do is cut a string with a pocket knife.\n\n73,\nMike Diehl\nW8LID/VE6LID\n\n> On Apr 30, 2019, at 14:58, Mark D. Johns via AMSAT-BB <[email protected]> \n> wrote:\n>\n> Perhaps I’m missing something, too. Why not use a full-featured tracking\n> program, such as SatPC32, that has all of this already included?\n>\n> On Tue, Apr 30, 2019 at 13:06 Vinny Stipo via AMSAT-BB \n> <[email protected]>\n> wrote:\n>\n>> Am I missing something? Why not just put this info in a online\n>> worksheet/excel, rather than compile a program with no source code?\n>>\n>> -Vinny KM2W\n>>\n>> On Tue, Apr 30, 2019 at 7:01 AM Hasan al-Basri via AMSAT-BB <\n>> [email protected]> wrote:\n>>\n>>> Absolutelyl, no worries about doppler. The only one of concern was the\n>> 1200\n>>> Hz error and I think that was a typo. I'll look for the update. Tnx so\n>>> much, it is a wonderful asset to sat ops. 73, N0AN\n>>> Hasan\n>>>\n>>>\n>>> On Mon, Apr 29, 2019 at 11:56 PM Wendy and Terry Osborne <\n>>> [email protected]> wrote:\n>>>\n>>>> Hi Hassan,\n>>>>\n>>>> Just added CAS-4A to the list.\n>>>> I was working off the AMSAT-NA Laminated frequency chart (April 2018).\n>>>> Should have spotted it.\n>>>>\n>>>> I have also tweaked the frequency on CAS-4B to track with your\n>>>> measurements.\n>>>> Use the same link for the updated program.\n>>>>\n>>>> I’m tempted to add a few hundred Hertz to the conversion numbers to get\n>>>> them spot on but the error\n>>>> is probably less than the doppler correction required.\n>>>>\n>>>> Trying to correct for doppler would require a built in tracking program\n>>>> and then you might as well use SatPC32.\n>>>>\n>>>> 73,\n>>>> Terry ZL2BAC\n>>>>\n>>>> *From:* Hasan al-Basri <[email protected]>\n>>>> *Sent:* Sunday, April 28, 2019 11:48 PM\n>>>> *To:* Wendy and Terry Osborne <[email protected]>\n>>>> *Cc:* AMSAT-BB <[email protected]>\n>>>> *Subject:* Re: [amsat-bb] Linear Transponder Up and Down link frequency\n>>>> calculator\n>>>>\n>>>> Very nice Terry, but you forgot CAS-4a :-)\n>>>>\n>>>> I work with pre-defined sat pairs to avoid Wifi spikes. Here are the\n>>>> results for some of the common birds using our downlink and your uplink\n>>>> (predicted) vs. what our uplinks really are for perfect audio.\n>>>>\n>>>> CAS-4B 145.918 435.287 Actual: 435.285.900\n>>>> XW-2A 145.672 435.043 : 435.042.600\n>>>> XW-2B 145.733 435.107 : 435.106.800\n>>>> XW-2C 145.798 435.167 : 435.166.800\n>>>>\n>>>> Very solid agreement, tnx so much. It would have saved us a lot of\n>> time\n>>>> setting up the first time, had we had you nice program.\n>>>>\n>>>> Please add CAS-4A when you get time.\n>>>>\n>>>> 73, N0AN\n>>>>\n>>>>\n>>>> Hasan\n>>>>\n>>>>\n>>>> On Sat, Apr 27, 2019 at 8:41 PM Wendy and Terry Osborne via AMSAT-BB <\n>>>> [email protected]> wrote:\n>>>>\n>>>>> Hi Folks,\n>>>>>\n>>>>> With the number of Linear Transponder Satellites that are operational\n>> or\n>>>>> in the pipeline,\n>>>>> I thought a simple program to convert uplink to downlink frequencies\n>> was\n>>>>> worth writing.\n>>>>> I’ve written one for Windows.\n>>>>> You can find it here:\n>>>>>\n>>>\n>> https://www.dropbox.com/sh/4o375h6bygjxkzr/AABi9Ck9Wc6ODrhXwIVHxI-_a?dl=0\n>>>>> I’ve put the exe file and the same file in zip format.\n>>>>> I have put all the current birds plus the ones that have launches\n>>> pending.\n>>>>> Just select the satellite of interest from the “Satellite” drop down\n>>>>> menu,\n>>>>> put your frequency into the text box and hit the Up or Dn calculate\n>>>>> button.\n>>>>>\n>>>>> Let me know if you think this is useful.\n>>>>>\n>>>>> 73,\n>>>>> Terry Osborne ZL2BAC\n>>>>> _______________________________________________\n>>>>> Sent via [email protected]. AMSAT-NA makes 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\n>>>>> AMSAT-NA.\n>>>>> Not an AMSAT-NA member? Join now to support the amateur satellite\n>>> program!\n>>>>> Subscription settings:\n>> https://www.amsat.org/mailman/listinfo/amsat-bb\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: https://www.amsat.org/mailman/listinfo/amsat-bb\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: https://www.amsat.org/mailman/listinfo/amsat-bb\n>>\n> -- \n> --\n> Mark D. Johns\n> KØJM / MØGZO / ex-9H3DJ / ex-KØMDJ\n> Brooklyn Park, MN USA EN35hd\n> -----------------------------------------------\n> \"Heaven goes by favor; if it went by merit,\n> you would stay out and your dog would go in.\"\n> ---Mark Twain\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: https://www.amsat.org/mailman/listinfo/amsat-bb\n_______________________________________________\nSent via [email protected]. AMSAT-NA makes this open forum available\nto all interested persons worldwide without requiring membership. Opinions \nexpressed\nare solely those of the author, and do not reflect the official views of \nAMSAT-NA.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb \n\n", "attachments": [] }