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GET /hyperkitty/api/list/[email protected]/email/RCZ6RE22T5PG55A2IJO7GFZPJNPH65JX/?format=api
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/RCZ6RE22T5PG55A2IJO7GFZPJNPH65JX/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "041820092015.19338.49EA34F500087EEB00004B8A22193100029B0A02D2089B9A019C04040A0DBF049BCC02@att.net", "message_id_hash": "RCZ6RE22T5PG55A2IJO7GFZPJNPH65JX", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/TBTRW4SBOHK3LXT52QH3B4YLEBRN3DCD/?format=api", "sender": { "address": "n3tl (a) bellsouth.net", "mailman_id": null, "emails": null }, "sender_name": "[email protected]", "subject": "[amsat-bb] Re: Elk set-up [was: Homebrew Elk-style 14/435 mhz\tlogperiodic for sats?]", "date": "2009-04-18T20:15:50Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/RWYI23DCB22BV6C2V4ZDCMBBXJS23ZN3/?format=api", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/RID2SPT4FJFD7VJQYPAWAADHWBFKKKFC/?format=api" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Hey Bill,\n\nBased on my experience with it when using the Elk as a handheld antenna, I believe I'd at least try the trick of using a 90-degree connector at the feedpoint and running your coax along the boom to the back of the antenna. By the way - the hardware/PVC necessary for mast mounting comes with the antenna. For a hand-holding handle, I needed only a few feet of PVC and one T connector, about 40 cents worth of parts. You shouldn't need anything for mast-mounting.\n\nI don't have an answer for your preamp question because, as I recall, you're using one full-duplex radio. I'm using two radios and a duplexer here, and would opt for preamps at the radios. I know that's not as effective as mast-mounting, but it would probably have to suffice. I'm sure someone else will provide some input on this.\n\nBest of luck with it all.\n\n73,\n\nTim - N3TL\n-------------- Original message from Bill Dzurilla <[email protected]>: -------------- \n\n\n> I have ordered an Elk. Any set-up tips? I see they recommend using a PVC T-connector to attach the antenna to the mast. This aims the antenna parallel \n> to the ground. How to mount it for a fixed 20 degree elevation? \n> Also, as this antenna has only one feedline, is there any way to mount preamps \n> for both 70cm and 2m? \n> \n> Thanks and 73, Bill NZ5N \n> \n> \n> --- On Sat, 4/18/09, Rafael Valdez G. wrote: \n> \n> > From: Rafael Valdez G. > Subject: Re: [amsat-bb] Re: Homebrew Elk-style 14/435 mhz log periodic for \n> sats? > To: \"[email protected] \" , \"[email protected] \" \n> , \"[email protected] \" \n> > Cc: \"[email protected] \" \n> > Date: Saturday, April 18, 2009, 12:04 AM \n> > Defiinetely your solution for hoa is the elk as far a I \n> > understand you can have a Tv. Antenna which te elk can \n> > fairly look like.... \n> > \n> > I am a true believer of Elk' eficiency and \n> > portability... \n> > \n> > GL 73's \n> > \n> > XE2RV \n> > VUCC 164 satellite \n> > \n> > \n> > -----Original Message----- \n> > From: [email protected] \n> > \n> > Date: Sat, 18 Apr 2009 03:52:03 \n> > To: ; \n> > Cc: ; \n> > \n> > Subject: [amsat-bb] Re: Homebrew Elk-style 14/435 mhz log \n> > periodic for sats? \n> > \n> > \n> > Hey Bill, \n> > \n> > Your comments about construction, location, etc., are \n> > right one, based on my experiences here. I actually move \n> > from one side of the house to the other depending on whether \n> > passes are to my east or west. \n> > \n> > A couple of other things affect the performance I'm \n> > getting, too. One of the most important is that my decision \n> > to continue using a handheld antenna means I have less than \n> > six feet of coax from the radio to the antenna. I'm \n> > still getting some loss, but not nearly as much as I'd \n> > get by putting antennas in the attic and running much longer \n> > feed lines to them. Another is a little trick K4DLG in \n> > Florida passed along to me a while back. \n> > \n> > He has a log periodic for HF, and the coax runs from the \n> > antenna feedpoint along the main boom to the back of the \n> > antenna before heading down to the shack. Taking that lead, \n> > he did the same thing with the Elk he bought. Doing so \n> > mitigated any significant changes in SWR due to moving the \n> > antenna around while hand-holding it during a pass. I tried \n> > it here and have observed the same thing. For me, at this \n> > location (inside or out), 8 degrees of elevation was the \n> > best I could hope for with the Arrow I had. In all the \n> > months I used that antenna, I made only a few contacts when \n> > a given satellite was below 8 degrees here. When I started \n> > using the Elk, that \"bottom line\" immediately \n> > dropped to 4 degrees. And when I tried K4DLG's \n> > suggestion of running the feedline parallel to the boom, the \n> > 4 degrees dropped to 3. \n> > \n> > And, as you point out, depending on the location and \n> > relative path of a given pass, I can work even lower and \n> > make contacts, as I have with some stations in Europe on \n> > AO-7. \n> > \n> > All of that being said, I also still lose the satellites \n> > due to obstruction, as you have observed with your Arrow. \n> > When it comes to the FM LEO satellites, only the ISS \n> > transmits back to us using more than milliwatt power levels. \n> > I know that AO-51 is capable of 1 watt or more, but it \n> > generally is not configured to transmit at those levels. \n> > Drew or someone, please correct me if that statement is \n> > inaccurate. The published stats on AO-27 report a nominal \n> > output of 500 mW, and SO-50 is reported to operate with a \n> > nominal 250 mW output. I believe both of them also use \n> > quarter-wave vertical antennas, which are 0-gain. \n> > \n> > Given those power levels, it doesn't take much to \n> > begin affecting reception, especially for handheld stations. \n> > From here at my home, that quarter of azimuth from 90 \n> > degrees to 180 degrees is my worst. For really consistent \n> > reception in that part of the sky, I need upwards of 30 \n> > degrees elevation when I'm standing outside at ground \n> > level. On the second floor of the house, I get reception \n> > good enough to facilitate contacts with about 15 degrees of \n> > elevation at azimuths from 90 degrees to about 130. I still \n> > need close to 30 from azimuth 130 to 180 no matter where I \n> > try to operate from - in the yard or upstairs. \n> > \n> > I hope you're able to come up with a solution for your \n> > location that works even better than you expect! \n> > \n> > 73 to all, \n> > \n> > Tim - N3TL \n> > \n> > \n> > -------------- Original message from Bill Dzurilla \n> > : -------------- \n> > \n> > \n> > > \n> > > Tim, \n> > > Yes, your QSO with F2IL is becoming famous, congrats. \n> > I think the performance of indoor antennas must be heavily \n> > dependent on the location of the shack and the construction \n> > materials used on the house. I moved my Eggbeater and ground \n> > plane to the attic from outside and noticed a sharp drop in \n> > performance. Also tried the Arrow here inside the shack and \n> > it did not do too well. And noticed that, even outside in \n> > the yard with the Arrow, I lose the sats at low elevation, \n> > when they drop below the level of nearby roof lines. On my \n> > DXpeditions to Swan Island and Jamaica, where there was \n> > unobstructed view over the ocean, I could easily make \n> > contacts with less than 1 degree of elevation with the same \n> > HT and \n> > > Arrow. \n> > > \n> > > 73, Bill NZ5N \n> > > \n> > > \n> > > --- On Fri, 4/17/09, [email protected] wrote: \n> > > \n> > > > From: [email protected] > Subject: Re: \n> > [amsat-bb] Re: Homebrew Elk-style 14/435 mhz log periodic \n> > for \n> > > sats? \n> > > > To: \"Joe\" , [email protected] \n> > > > Cc: [email protected] \n> > > > Date: Friday, April 17, 2009, 10:19 PM \n> > > > Bill and all, \n> > > > \n> > > > Joe is right. F2IL gave me a 569 report on AO-7 \n> > Mode B \n> > > > Thursday evening - and I was hand-holding my Elk \n> > on the \n> > > > second floor of my house, pointing it to the \n> > northeast at a \n> > > > spot on a windowless wall. When we worked, AO-7 \n> > was at \n> > > > roughly 3.5 degrees elevation here. \n> > > > \n> > > > I wish I had decided to try these low-angle \n> > passes months \n> > > > ago! \n> > > > \n> > > > 73 to all, \n> > > > \n> > > > Tim - N3TL \n> > > > -------------- Original message from Joe \n> > > > : -------------- \n> > > > \n> > > > \n> > > > > You'd be amazed at what you can do with \n> > an indoor \n> > > > yagi also.. \n> > > > > \n> > > > > My first 2 meter ant was a 3 ele quad on a \n> > photo \n> > > > tripod that sat right \n> > > > > next to me on the floor in the shack, \n> > > > > \n> > > > > Joe WB9SBD \n> > > > > \n> > > > > Bill Dzurilla wrote: \n> > > > > >Are there plans anywhere for a homebrew \n> > version of \n> > > > the Elk duo bander? After reading through the \n> > prior thread \n> > > > about the poor performance of Eggbeaters and \n> > other omnis, \n> > > > I'm ready to risk the wrath of my Homeowners \n> > Association \n> > > > and put up \n> > > > > a small beam. \n> > > > > > \n> > > > > >Or, anybody have an Elk for sale? \n> > > > > > \n> > > > > >73, Bill NZ5N \n> > > > > > \n> > > > > > \n> > > > > > \n> > > > > \n> > >_______________________________________________ \n> > > > > >Sent via [email protected]. Opinions \n> > expressed \n> > > > are those of the author. \n> > > > > >Not an AMSAT-NA member? Join now to \n> > support the \n> > > > amateur satellite program! \n> > > > > >Subscription settings: \n> > > > http://amsat.org/mailman/listinfo/amsat-bb \n> > \n> > > > > > \n> > > > > > \n> > > > > > \n> > > > > > \n> > > > > \n> > _______________________________________________ \n> > > > > Sent via [email protected]. Opinions \n> > expressed are \n> > > > those of the author. \n> > > > > Not an AMSAT-NA member? Join now to support \n> > the \n> > > > amateur satellite program! \n> > > > > Subscription settings: \n> > > > http://amsat.org/mailman/listinfo/amsat-bb \n> > \n> > > \n> > > \n> > > \n> > > _______________________________________________ \n> > > Sent via [email protected]. Opinions expressed are \n> > those of the author. \n> > > Not an AMSAT-NA member? Join now to support the \n> > amateur satellite program! \n> > > Subscription settings: \n> > http://amsat.org/mailman/listinfo/amsat-bb \n> > \n> > _______________________________________________ \n> > Sent via [email protected]. Opinions expressed are those \n> > of the author. \n> > Not an AMSAT-NA member? Join now to support the amateur \n> > satellite program! \n> > Subscription settings: \n> > http://amsat.org/mailman/listinfo/amsat-bb \n> > \n> \n> \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 program! \n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb \n", "attachments": [] }