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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/JS2JGPZR54XMC55ANQWVJOG6XCYXWN5L/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "JS2JGPZR54XMC55ANQWVJOG6XCYXWN5L",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/UQXHEST3HBWIY4TZNOKMP5S5GJTSW4I4/?format=api",
    "sender": {
        "address": "jpixton (a) shentel.net",
        "mailman_id": "d4dce75450af43048c296fa1066f0cab",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/d4dce75450af43048c296fa1066f0cab/emails/?format=api"
    },
    "sender_name": "Jerry Pixton",
    "subject": "Re: [amsat-bb] NO-84, what is the secret?",
    "date": "2015-12-08T19:51:21Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/UQXHEST3HBWIY4TZNOKMP5S5GJTSW4I4/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "NO-84 listeners want-a-bees,\n\nMark asked a good question for beginners (aren't we are all beginners \nwith a new mode?):\n\nOn 12/6/2015 11:43 PM, Mark Lunday wrote:\n\n> 1.\tWhat's the secret to receiving PSK31 on FM?  I never tried that\n> before.\n\nGiven your 70cm FM radio, you will want to get an audio output that you \ncan connect to a sound card in your computer. You are looking for the \ntype of low level audio output that maybe you would feed to a rtty \nmodem, etc while is a SSB mode. Some radios might have special audio \nconnections for 1200 or 9600 baud FM packet - this is not what you want. \nThe audio connection you are looking for might be called AFSK or maybe \nDATA - one that gives you the full 3KHz of bandwidth. Worse case, you \ncan use high level Speaker audio through an attenuator so as to not \noverdrive your sound card.\n\nOnce you get the audio connected to your sound card, then probably the \neasiest PSK31 program to start listening with is DigiPan. I find the \nwaterfall view very helpful to find signals to work. There is a good \npicture of what to expect on the apps.org/psat.html web page. The \nsignals you will be able to decode are those vertical lines. In the web \npicture you see the signal of DK3WN at about 1000 Hz. And you see the \nbeacon at 314 Hz. The slanted signal is a signal that is not being \ndoppler corrected - either ground based or trying to call thru NO-84. \nThese are much harder to decode.\n\nSo with your radio in FM, keep it tuned to the NO-84 downlink frequency \nof nominally 435.350 MHz, remembering that at the beginning of a pass \nthe UHF signal is going to appear closer to 435.360 MHz, move through \n435.350 at closest approach and leave you around 435.340 MHz all due to \nthe doppler shift. If the radio has a Narrow FM mode, that might help to \nrecover a stronger audio signal.\n\nOnce you can comfortable see some signals and decode them, you can then \nmove on to the transmit side. Probably DopplerPSK, by K0SM, is the \neasiest way to start. Here you are using a USB HF signal which may be \nmore familiar to most hams as the standard setup for working PSK31 on \nthe HF bands.\n\nGive it a try. NO-84 PSK31 is a challenge but doable.\n\n73, Jerry, W6IHG\n\n-- \n-----------------------------------------------\nDr. Jerry R. Pixton, PIXOS Designs\nhttp://www.shentel.net/pixosdesigns/RadioTuner/\[email protected]\n-----------------------------------------------\n",
    "attachments": []
}