[amsat-bb] ARRL Antenna book, eggbeater antenna designs

[Devin L. Ganger]

Resending this to the list, instead of just to Sean. Sorry, Sean!

I have an Elk for my D72A and that works fine when the weather cooperates. Note below where I say I *replaced* the Baofengs - they're no longer in play, for anyone named David Swanson who cares to take a swipe at me for those.

For those times when it doesn't (I live in Western Washington, so that's quite a bit) I'm building something to mount on top of the house to use with my Yaesu 857D until I can afford a rotator + M2 LEO pack or something similar. We just bought our house, have two kids in college, and are actively trying to get out of debt within the next year, so just going and buying a ton of expensive hardware is not in the budget at this time. Otherwise I would be asking about towers. :)

I understand that the eggbeaters have their flaws, but I've read claims that the Eggbeater-II design (which is more Moxon-like from what I understand) offers better gain at the horizon than either the pure eggbeater or Moxon. Is this not the case?


--
Devin L. Ganger (WA7DLG)
email: devin at thecabal.org
web: Devin on Earth
cell: +1 425.239.2575

> -----Original Message-----
> From: Ted Krempa <k7trkradio at charter.net>
> Sent: Friday, May 3, 2019 1:56 PM
> To: Devin L. Ganger <devin at thecabal.org>; AMSAT BB <amsat-
> bb at amsat.org>
> Subject: RE: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
> 
> Hi Devin, frankly the 'eggbeater' days have come and gone in the efficiency
> dept.
> 
> Attached is an article from QST on the Moxon turnstile, a much better option.
> Better than that is an Elk on a 'rat shack rotor at 15-20 deg fixed el.
> 
> If interested, I can send you my files direct on either
> 
> 73, Ted
> K7TRK
> 
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Devin
> L.
> Ganger via AMSAT-BB
> Sent: Friday, May 3, 2019 1:19 PM
> To: AMSAT-BB at amsat.org
> Subject: [amsat-bb] ARRL Antenna book, eggbeater antenna designs
> 
> Greetings, programs!
> 
> I'm looking to work with my son (who will be studying to get his Technician
> license later this month) on building a UHF/VHF pair of eggbeater antennas.
> I've found a few papers online, but does anyone have a good reference to a
> detailed design?
> 
> Does the ARRL Antenna book latest edition have any significant coverage of
> eggbeaters at all? I have an older version that has nothing.
> 
> Also, most of the designs I see are for a single band. If you're deploying a pair
> for satellite operations, do you simply attach them through a duplexer?
> I have a Diamond MX-72N that I picked up a while ago for using with dual
> Baofengs, but it's been sitting in my drawer since I picked up my TH-D72A.
> It has a 1.6~150MHz lead and a 350~460MHz lead.
> 
> Thanks in advance for any pointers you might have.
> 
> 
> --
> Devin L. Ganger (WA7DLG)
> email: devin at thecabal.org<mailto:devin at thecabal.org>
> web: Devin on Earth<http://www.devinonearth.com/>
> cell: +1 425.239.2575
> 
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed are solely those of the author, and do not reflect the official views
> of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb