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GET /hyperkitty/api/list/[email protected]/email/UX5GGGHO7BRKAXG7T2UL3BTN7Z7RXXHZ/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/UX5GGGHO7BRKAXG7T2UL3BTN7Z7RXXHZ/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "UX5GGGHO7BRKAXG7T2UL3BTN7Z7RXXHZ", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/UX5GGGHO7BRKAXG7T2UL3BTN7Z7RXXHZ/", "sender": { "address": "f.grappi (a) tin.it", "mailman_id": "4b7c00748d5b4cff8dcc1d00a899cb5c", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/4b7c00748d5b4cff8dcc1d00a899cb5c/emails/" }, "sender_name": "Francesco Grappi", "subject": "[amsat-bb] I: Re: Offset Correction for CW Beacons in SatPC32", "date": "2006-12-02T17:55:38Z", "parent": null, "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Yes I agree with you Michael, I read carefully everything\nabout this matter, thanks Erich for your help!\n73\" Francesco IW4DVZ\n\n\n\n> -----Messaggio originale-----\n> Da: [email protected] [mailto:[email protected]]Per\n> conto di Michael Hatzakis Jr MD\n> Inviato: sabato 2 dicembre 2006 17.07\n> A: 'Erich Eichmann'; 'Dean Shutt'\n> Cc: [email protected]\n> Oggetto: [amsat-bb] Re: Offset Correction for CW Beacons in SatPC32\n>\n>\n> I want to take a moment to thank Erich for some impressive support of this\n> group, thanks, Michael K3MH\n>\n>\n>\n> -----Original Message-----\n> From: [email protected] [mailto:[email protected]] On\n> Behalf Of Erich Eichmann\n> Sent: Saturday, December 02, 2006 3:03 AM\n> To: Dean Shutt\n> Cc: [email protected]\n> Subject: [amsat-bb] Re: Offset Correction for CW Beacons in SatPC32\n>\n> Dean,\n> 1. to calibrate your 2 data lines for each SSB sat for SSB and CW do\n> the following (separately for the SSB and CW entry):\n>\n> While the satellite is audible calibrate the uplink frequency\n> until you hear\n> your own voice or CW signal with the best audio pitch. To fine tune the\n> uplink frequency use the \"Upl. Calibr.\" controls in menu CAT\n> (these controls\n> leave the downlink frequency unchanged, so, they change the offset between\n> downlink and uplink frequency).\n>\n> Then click the button \"Change/Store Data File\". In the menu that\n> opens click\n> on \"Store ...Uplink Calibration\". This function saves the new\n> offset and at\n> next program start you should hear your own signal with the right audio\n> pitch or very close to it.\n>\n> Recently there was a discussion whether to use the button \"Change/Store\n> .. TX/RX frequency data\" to save the calibration. The purpose of that\n> function is another one, however, see below.\n>\n> The calibration procedure should be done with each SSB satellite, because\n> there are hardware depending frequency deviations between the\n> single radios.\n> So, the frequencies that come with the program can't be optimized for each\n> radio. Between my IC-821H and IC-910H, i.e., is a deviation of\n> about 1 KHz.\n>\n> The mode entry in Doppler.SQF (USB, LSB, CW) can be changed only manually\n> with Notepad, of course.\n>\n> 2.\n> To start CAT tuning immediately on the beacon frequency of a\n> satellite, i.e.\n> FO-29, do the following (after you executed the procedure above 1):\n>\n> While the satellite is audible tune the radio to the satellite's beacon\n> signal. That can be done with the VFO knob.\n>\n> In menu \"CAT\" click the button \"Change/Store Data File\" and in\n> the menu that\n> opens click on \"Change/Store RX/TX Freq. Data\".\n>\n> That will save the new uplink AND downlink frequencies (after eliminating\n> the actual Doppler shifts, of course) but leaves the offset unchanged. To\n> operate over the satellite you only need to tune off the beacon\n> frequency to\n> an unused frequency.\n>\n> (This feature was very helpful with the AO-40 S-band beacon. It allowed to\n> easily find the own downlink signal inspite of the daily\n> temperature changes\n> of the outdoor downconverter L.O.)\n>\n> 3.There is a detailed description of these functions in the manual in the\n> section regarding menu CAT.\n>\n> 73s, Erich, DK1TB\n>\n>\n>\n>\n> ----- Original Message -----\n> From: \"Dean Shutt\" <[email protected]>\n> To: <[email protected]>\n> Cc: <[email protected]>\n> Sent: Friday, December 01, 2006 8:56 PM\n> Subject: [amsat-bb] Offset Correction for CW Beacons in SatPC32\n>\n>\n> > Erich,\n> >\n> > Further to a recent question, it appears that I must change the\n> > doppler.sqf file to calibrate a cw beacon rather than use the\n> > \"change/store data file\" button. Is this correct? I have a seperate\n> > line for each SSB sat that tunes the beacon frequency in CW mode and was\n> > attempting to adjust for the offsets in my system.\n> >\n> > Thanks for the help.\n> >\n> > 73 de Dean, AL7CR\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>\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 satellite program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\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 satellite program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n", "attachments": [] }