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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/URDM6342M6D2FX26YLLZJ27L635LXXFC/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CAPvDab0AXxXWR0pxh7m3AOB5HVOkfxtY-DQK+uM8wm4uNj2TLg@mail.gmail.com",
    "message_id_hash": "URDM6342M6D2FX26YLLZJ27L635LXXFC",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/URDM6342M6D2FX26YLLZJ27L635LXXFC/?format=api",
    "sender": {
        "address": "badencapecod (a) gmail.com",
        "mailman_id": "228ae4f5c3d547ef8d3f4c2b1e03205d",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/228ae4f5c3d547ef8d3f4c2b1e03205d/emails/?format=api"
    },
    "sender_name": "Wes Baden",
    "subject": "[amsat-bb] CW on the Birds--QRP",
    "date": "2020-02-20T19:45:47Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "I've been a CW op since 1957, though I am a relative newbie on satellites\n(6 weeks now).  Hasan has helped me realize how little uplink power is\nneeded for successful contacts.  (Translation = I was using too much power\nthe first week or so.)  Part of the problem was inexperience.  Another\nfactor, however, was my shiny new Icom 9700, which controls output with a\nknob and \"percentage\" indications.  What does 10% output mean, actually?  I\nhooked up my Bird wattmeter to find out.  On 2M, percentages corresponded\npretty much with output.  5% = 4W, 50% = 48W.  But on 70 cm, percentages do\nnot correspond, given less reduced output to begin with.  Here, for\ninstance, 5% = 2W.  Also, realize that you're still putting out power at\n0%!  900mW on 2M, it turns out to be, 100 mW or so on 70 cm.  The latter\nexplains why I've made contacts with power supposedly cranked all the way\ndown to zero.  I operate U/V, by the way.  I calculate that I have 9 dB\ngain with my Cushcraft A449-6S, 33 feet of LMR 400, and three lossy UHF\nconnectors.  This means, on uplink on 70 cm, 0% = 800 mW ERP, 3% = 8W, 5% =\n16W, 7% = 24W, 10% = 48W, and 20% = 80W.  Bottom line is that I have no\ntrouble making Mode B contacts with the knob on the 9700 set at somewhere\nbetween 0% and 7%, and usually at the lower end of that range.  Hopefully\nthis information is of help to other CW ops, especially new ones with\n9700s.  Keep a hand on or near that power output knob, reducing power when\nnot needed and especially when your waterfall is looking as strong as the\nbeacon waterfall.  Other ops in the bandpass will appreciate this courtesy.\n\nWes NA1ME\n",
    "attachments": []
}