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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VDS3O3B4MJCBRNJQ7QAHXVH4KAYY6JEU/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "VDS3O3B4MJCBRNJQ7QAHXVH4KAYY6JEU",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/2NAVXLJ2MHOUTM3M7Q5QVDU3J2XSSEPU/?format=api",
    "sender": {
        "address": "zack.kd8ksn (a) hotmail.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Zachary Beougher",
    "subject": "[amsat-bb] Re: 2 ht vs. 1-duplex ht",
    "date": "2011-01-27T15:14:00Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/JTRWDCETOAMY3BWE2V22FCHPJGXABQBT/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/YNEGLKT3K2P6ZTWJDFYLFRY26Y24V3ZR/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "I have the D7A (full duplex), but I don’t like the receiver sensitivity.  I \nwent back to using one THG71 for the down and the D7 for the up.  The other \nthing I don't like about the D7 is you have to switch between back and forth \nbetween band A and B to adjust doppler.  I would probably not recommend the \nD7 for satellite work.  I have heard things about the D72.\n\nZack\nKD8KSN\n\n-----Original Message----- \nFrom: Tyler Nicholas\nSent: Wednesday, January 26, 2011 6:16 PM\nTo: [email protected]\nSubject: [amsat-bb] Re: 2 ht vs. 1-duplex ht\n\nI will second Drew on the FT-530.  I picked one up for under $200 that was \nin awesome condition and it is the best HT I have ever owned (and I have \nbeen through a bunch).  If you are even luckier, you might find one with the \nMH-29 speaker mic that has a LCD display on it.  You can adjust the downlink \nfrequency with this mic and even see the frequency on it.  I also found some \nmassive batteries from W&W manufacturing that make this radio run forever.\n\nFor some other full duplex options, you might consider a Kenwood TH-D72.  I \nhaven't tried one, but I have seen good reviews on it as a full duplex \nhandheld.  It's a little pricey ($500) and unless you want the APRS in it, I \nwould seriously consider an FT-530 or the predecessor to the D72 which is \nthe Kenwood TH-D7A which can be picked up on eBay or elsewhere for a decent \nprice.\n\nI would not recommend the Alinco DJ-G7 for full duplex. They are priced good \nand will do full duplex, but the receiver has a densense problem when you \ntransmit on 2m.  It's a good radio otherwise, but the full duplex \nperformance is very poor unless signals are extremely strong (as in local \nrepeater strong).\n\nI first started using two FT-60s in the beginning and I understand Zach's \nproblem with lugging everything in and out of the house.  Two HTs work just \nfine, but if you are really serious about satellites, I would highly \nrecommend a full duplex HT.\n\nGood luck,\nTyler Nicholas K5TDN\n\nSent from my iPhone\n\nOn Jan 26, 2011, at 3:26 PM, Andrew Glasbrenner <[email protected]> \nwrote:\n\n> On 1/26/2011 4:00 PM, Ted wrote:\n>> Zach, there are a lot of VUCC's out there that use exactly what you \n>> have...\n>>\n>> Most here will argue that you HAVE to be duplex....a lot get by without \n>> it\n>>\n> No, just that it is a more productive and considerate way of operating.\n> A lot of the congestion you hear on AO-51 is due to stations either not\n> knowing, or not caring, that they are in competition for the uplink.\n> Full duplex takes care of half of that. Things are also MUCH different\n> when AO-51 is over the west coast with it's considerably lower density\n> of hams.\n>\n> To answer your question Zach, it's all about your personal budget and\n> needs. Adding a 2nd HT is probably the cheapest route, but adds more\n> complication than a single full duplex HT. Maybe you could try borrowing\n> an HT to try it with two? If you want to go with a single full duplex\n> HT, there are lots of older ones out there in good condition used. I saw\n> an FT-530 the other day with a ton of accessories going for less than a\n> new single band. That is one of the finest full duplex radios ever made\n> for satellites.\n>\n> Another trick is to take the Arrow off the tripod and hold it by hand\n> where you can rapidly twist it to peak the signal due to polarity\n> differences. With full duplex you can even do this while transmitting to\n> clear up a ratty uplink. Check out\n> http://www.youtube.com/watch?v=XTqjQ9xIQQE for an example of how much\n> polarity plays in signal strength on AO-51 with an Arrow (or Elk, or any\n> linear antenna).\n>\n> 73, and good luck on the air,\n> Drew KO4MA\n> AMSAT-NA VP Operations\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_______________________________________________\nSent via [email protected]. Opinions expressed are those of the author.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://amsat.org/mailman/listinfo/amsat-bb \n\n",
    "attachments": []
}