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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/YRRISHABO6DKPXN6SURYH2QZA4GIYVEP/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CAEGYLCvAKFK4CZx4+HZoXyThhMEUcRZjG5ADUGX4j2z9mMDZWg@mail.gmail.com",
    "message_id_hash": "YRRISHABO6DKPXN6SURYH2QZA4GIYVEP",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/B3CEGWWUY3RYRDNN4O3MGLEAWVJS54FQ/?format=api",
    "sender": {
        "address": "gabrielzeifman (a) gmail.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Gabriel Zeifman",
    "subject": "Re: [amsat-bb] Unsuccessful Uplinks - AO-92",
    "date": "2018-06-07T04:23:31Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/NC6DS7FYH2LP27LEBDQUHIAXQNUMFY3H/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "This is incorrect. This would be true for V/u but is reverse for U/v as\nDoppler is making the apparent received frequency at the satellite higher\nas the satellite is flying towards the ground based transmitter.\n\n73,\nGabe\nAL6D/VE6NJH\n\nOn Wed, Jun 6, 2018, 8:14 PM Daniel Wight <[email protected]> wrote:\n\n> Seems like your Doppler shift might be opposite. I normally start high &\n> work my way down during the satellite pass... (For instance, I would start\n> at 435.180 for AO-85 and then work my way down to 435.160 as the satellite\n> 'sunsets' on my horizon). Doppler shift should be higher frequency during\n> approach, near zero when the satellite is overhead, and lower after the\n> satellite passes.\n>\n> 73,\n>\n> Daniel, KD7LEE\n>\n> On Wed, Jun 6, 2018, 17:27 Andrew Glasbrenner <[email protected]>\n> wrote:\n>\n> > You've discovered one of the reasons full duplex is best on the FM\n> > sats...you have no idea if you are getting through, because you can't\n> hear\n> > while transmitting.\n> >\n> > Got another radio so you can work full duplex?\n> >\n> > 73, Drew KO4MA\n> >\n> > -----Original Message-----\n> > From: AMSAT-BB <[email protected]> On Behalf Of Hugo Dominguez,\n> > Jr.\n> > Sent: Wednesday, June 06, 2018 7:41 PM\n> > To: [email protected]\n> > Subject: [amsat-bb] Unsuccessful Uplinks - AO-92\n> >\n> > I’ve just started playing with talking on satellites. I’m able to hear\n> all\n> > the satellites (AO-85, AO-91, AO-92 and SO-50) that I have programmed on\n> my\n> > Kenwood TH-D74, which I use with my Elk dual band periodic log antenna.\n> > However no one can hear me or responds to me. I’ve only been successful\n> > with my uplink (being heard) on AO-91 on several passes. I triple checked\n> > my frequencies on my radio and the 67 Hz tone and they are set as\n> follows:\n> > Sat.        Xmit       Tone\n> > SO-50   145.850  67.0 Hz\n> > AO-85   435.170  67.0 Hz\n> > AO-91   435.250  67.0 HZ\n> > AO-92   435.350  67.0 Hz\n> > These are the frequencies used when the bird is at its peak. I adjust for\n> > doppler on 440 by starting out 10 khz less, e.g AO-85 435.160, 435.165,\n> > 435.170, 435.175, 435.180.\n> >\n> > Any ideas if something has changed from what is published or am I missing\n> > something? Like I said, i’ve been able to communicate on AO-91.\n> >\n> > —\n> > Hugo Dominguez, Jr.\n> > _______________________________________________\n> > Sent via [email protected]. AMSAT-NA makes this open forum available to\n> > all 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.\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> > 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> 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": []
}