Not disputing the utility of egg beaters, but fwiw the ISS is the most powerful ham transponder we have. The Ericsson is speced at 4 or 5 watts.
73, John Brier KG4AKV
On Sat, May 4, 2019, 16:02 KE6BLR Robert via AMSAT-BB amsat-bb@amsat.org wrote:
7 DEGREES RX via EggBeater <<<
N6DAN-1 gets APRS packets on 145.825 MHz as low as 7 degrees via the EBB144.
See Tweet of report: https://twitter.com/MachaleRobert/status/1124763800865873920
I asked him to leave the EBB on the N6DAN-1 iGate for the entire month of May to get performance metrics. He also has a directional antenna for N6DAN-2.
For the pSat, you can monitor the TX and RX angles here:
http://www.spaceCommunicator.club/igates/
73s
Robert
On Fri, May 3, 2019 at 4:03 PM Bob Liddy (K8BL) via AMSAT-BB < amsat-bb@amsat.org> wrote:
I got a good chuckle out of KG5CCI's link to the MFJ Dummy Loads. Quite a few years back, I picked up a pair of the M2 Eggbeaters at a Hamfest for $150. I put them up with some 9913 and found that they were very close to being Dummy Loads in the sky. That was probably why the guy was selling them so cheap. They were sold again a couple years ago at Dayton for the same price. Lesson learned. I always thought the concept was very good, but the results were very disappointing. That was before the excellent performing SATs we have up there now. Maybe they would have moderate success now, but I wouldn't get my hopes up. My suggestion would be to get/build a couple small Yagis and put them on
a
mast several feet apart with the 70cm above and the 2M below with one vertical and one horizontal polarized. Tilt them up 15-20 degrees and a cheap TV Rotor is all you need. The tilting can be done by fashioning a mast-to-boom plate drilled for the desired angle for each antenna. Or,
you
could merely bend the mast that small amount. This should give you reasonable success until you decide you have the experience to get more sophisticated and will not have spent a bunch of money initially. GL/73, Bob K8BL (AMSAT #6593 since 1979)
On Friday, May 3, 2019, 5:00:48 PM EDT, David Swanson via AMSAT-BB <amsat-bb@amsat.org> wrote:
Hi Sean!
I don't recall seeing any name calling here until your post, I genuinely want to make sure the author of this thread who has sent numerous emails
to
this list explaining how to operate gets the best tips in regards to
their
planned build. I'm actually in the process of building the setup I recommended and will plan on doing a demo for folks sometime here soon, stay tuned!
-Dave, KG5CCI
On Fri, May 3, 2019 at 3:51 PM Sean Waite waisean@gmail.com wrote:
Ah, yes, rather than maybe educate someone let's just berate them and functionally call them an idiot.
Eggbeaters have a bad rap because they don't necessarily hear well. You may be making it into the bird but not hearing yourself, so you keep
tuning
around and calling trying to find yourself only to be deaf-ly QRMing
other
stations. I have no experience with them, but that's what I've heard.
73, Sean WA1TE
On Fri, May 3, 2019 at 4:49 PM David Swanson via AMSAT-BB < amsat-bb@amsat.org> wrote:
Instead of building eggbeaters, pick up a few of these:
http://www.mfjenterprises.com/Product.php?productid=MFJ-261
You'll also need a pair of these:
https://www.amazon.com/Coaxial-Cable-Female-SO239-PL259/dp/B00KQHH7VC
Hook those into your baofengs and you'll be just as effective on the Satellites as you would with some homemade 'beaters.
Good luck! 73!
-Dave, KG5CCI
On Fri, May 3, 2019 at 3:19 PM Devin L. Ganger via AMSAT-BB < amsat-bb@amsat.org> wrote:
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@thecabal.orgmailto:devin@thecabal.org web: Devin on Earthhttp://www.devinonearth.com/ cell: +1 425.239.2575
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