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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BAAGWQYNKDPQ7BDSDNJCYCALJW4NJY2D/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "CAJEM475RYy9wJ+hoxu8wkruK70kZ7HXREPUYzkekia0JqeeeTg@mail.gmail.com", "message_id_hash": "BAAGWQYNKDPQ7BDSDNJCYCALJW4NJY2D", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/BAAGWQYNKDPQ7BDSDNJCYCALJW4NJY2D/", "sender": { "address": "samudra.haque (a) gmail.com", "mailman_id": null, "emails": null }, "sender_name": "Samudra Haque", "subject": "[amsat-bb] Re: EggBeater", "date": "2012-05-29T21:13:06Z", "parent": null, "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Yes, I considered LMR-400 and above, but due to the rigid bending limits of\nthose cables, I went down the scale to LMR-240 for this first install, the\ncable is almost as flexible as RG-58/59 etc. ...\n\nOn Tue, May 29, 2012 at 4:55 PM, Kevin Deane <[email protected]> wrote:\n\n> *Hello, figured I would give my two cents... I have gotten in with many\n> antennas and many radios. They say five watts is all you need with a\n> directional ant. I have worked AO-27 with a hustler mag mount and a FT7900,\n> only for a short time of course because it is not getting into the bird\n> that matters, it is hearing it.*\n> **\n> *Whatever you use for receive make sure you have the best coax or\n> something like 9913, or lmr 400, because I found out the hard way that the\n> DB loss in bad or cheap coax will kill you bigtime. I have not tried an\n> eggbeater, but have tried the log periodic, and yagis. Like I said the\n> verticals, mag mount and base ant, work for closer passes for a few minutes.\n> *\n> **\n> *If you can do full duplex that is the best way for sure, as you can hear\n> yourself and not cause Qrm. Probly was not much help here but I have heard\n> people have had great success with the egbeater. Maybe add a preamp at the\n> receive ant mast...*\n> **\n> *Anyway good luck, and remember if you cant hear people clearly dont\n> bother to transmit, everyone gets all bent out of shape.\n>\n> *\n>\n> *Kevin*\n> *KF7MYK*\n>\n>\n>\n> > From: [email protected]\n> > Date: Tue, 29 May 2012 16:17:48 -0400\n> > To: [email protected]\n> > CC: [email protected]\n> > Subject: [amsat-bb] Re: EggBeater\n> >\n> > Hello, can I ask a question related to this several-years old thread? At\n> > George Washington University, this fall we will be on the air and are\n> > buliding up an amateur radio club ground station from scratch. Currently\n> we\n> > are collecting equipment, cables, etc., while we wait for the\n> construction\n> > to begin on a new door in the interior of a third floor class room space\n> to\n> > let us use that area as a \"radio room\" or something like that. At my home\n> > QTH, I'm testing out the radios we can use, and would like to both\n> receive\n> > and transmit - with omni antennas (e.g., eggbeaters, QHA ) and later\n> AZ-El\n> > yagis.\n> >\n> > Assuming an LNA is used at the antenna for the RX path, would it be\n> > practical to use that same omni for uplink? What are the recommended\n> power\n> > settings for such an uplink for any of the recent amsats?\n> >\n> > If there was a constraint (for the summer into fall) of operating in a\n> > limited visibility area, and approximately 50 sq. ft of open access\n> (i.e.,\n> > 21 ft monopole mast with open free area about 4 ft dia.) would that be\n> > adequate for any sort of uplink antenna? The good thing is that the\n> > ultimate location of the club station antenna farm is huge, but for now\n> > this is what we have. I'm open to AZ-El positioners but the mast loading\n> > limit is pretty small for now.\n> >\n> > Any suggestion welcome.\n> >\n> > Regards,\n> >\n> > Samudra N3RDX\n> >\n> > On Thu, Apr 16, 2009 at 9:50 PM, Edward Cole <[email protected]>\n> wrote:\n> >\n> > > Drew,\n> > >\n> > > Thanks for the document on this antenna. I was going to try resizing\n> > > the 2m Lindenblad design of Tony's but this will be a snap for me. I\n> > > have 1/8-inch rod elements from an old Cushcraft yagi that\n> > > disintegrated long ago and have some 1/2-inch sched-40 aluminum pipe\n> > > (7/8 inch OD) that will work fine for the vertical. I can get the\n> > > PVC from my local building supply. Only need to order ferrites from\n> > > Mouser. Since I will place a 432 preamp at the antenna a short run\n> > > of RG-58 or mini-8 will suffice. I probably will make some variation\n> > > in the materials used. I did that on the 2m Lindenblad (not assembled,\n> > > yet).\n> > >\n> > > 73, Ed - KL7UW\n> > >\n> > > At 08:02 AM 4/16/2009, Andrew Glasbrenner wrote:\n> > > >Consider trying AA2TX's excellent parasitic lindenblad design. Unlike\n> the\n> > > >overpriced eggbeater, it puts the gain on the horizon where it is\n> needed,\n> > > >and is circular across the pattern. The parts mostly are from your\n> local\n> > > >hardware store, and in Tony's typical fashion, it is simple to\n> assemble\n> > > and\n> > > >works well.\n> > > >\n> > > >73, Drew KO4MA\n> > > >\n> > > >----- Original Message -----\n> > > >From: \"Bill Dzurilla\" <[email protected]>\n> > > >To: <[email protected]>\n> > > >Sent: Thursday, April 16, 2009 11:56 AM\n> > > >Subject: [amsat-bb] Re: EggBeater\n> > > >\n> > > >\n> > > > >\n> > > > > Steve,\n> > > > >\n> > > > > I have both a commercial and a homebrew Eggbeater and am\n> disappointed\n> > > with\n> > > > > both, especially in light of its rather high price. Connected to my\n> > > > > IC-7000 via an ARR mast-mounted preamp, performance is far less\n> than\n> > > with\n> > > > > an HT and an Arrow. Guess an omni can't cut it, at least not from\n> my\n> > > QTH.\n> > > > >\n> > > > > Maybe if I could get it up higher, clear of all roofs, it would do\n> > > better.\n> > > > > I can make contacts at relatively high sat elevations, but can do\n> just\n> > > as\n> > > > > well with a $10 dual band ground plane. My friend has an Eggbeater\n> and\n> > > > > the same preamp at a clearer QTH, and he hears substantially\n> better,\n> > > down\n> > > > > to 10 degrees elevation in some directions.\n> > > > >\n> > > > > Good luck and 73,\n> > > > > Bill NZ5N\n> > > > >\n> > > > >> > Hi Steve,\n> > > > >> >\n> > > > >> > It is surprising to read that you are not hearing\n> > > > >> anything. I have\n> > > > >> > repeatedly used a 2m and 70cm Eggbeater for the sats\n> > > > >> and have had no\n> > > > >> > problem hearing things. No pre-amp.\n> > > > >> >\n> > > > >> > I was using a short cable (e.g. less than 10 meters).\n> > > > >> The rigs I\n> > > > >> > used were a FT-736r (deaf) and a FT-847 (so-so).\n> > > > >> >\n> > > > >> > 73,\n> > > > >> >\n> > > > >> > Dave\n> > > > >\n> > > > >\n> > > > >\n> > > > >\n> > > > > _______________________________________________\n> > > > > Sent via [email protected]. Opinions expressed are those of the\n> > > author.\n> > > > > Not an AMSAT-NA member? Join now to support the amateur satellite\n> > > program!\n> > > > > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n> > > >\n> > > >_______________________________________________\n> > > >Sent via [email protected]. Opinions expressed are those of the\n> author.\n> > > >Not an AMSAT-NA member? Join now to support the amateur satellite\n> program!\n> > > >Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n> > >\n> > > _______________________________________________\n> > > Sent via [email protected]. Opinions expressed are those of the\n> author.\n> > > Not an AMSAT-NA member? Join now to support the amateur satellite\n> 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\n> program!\n> > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>\n", "attachments": [] }