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Oh, I see the artistry in the work. Phasing it in, as I remarked,
must have been a serious effort. I suppose open wire would make
adjustment a little easier. The picture makes me think of the huge
Soviet era curtain arrays they used at HF.
I also see a lot of money in that array unless the trusses and
bearings are available cheap on the surplus market over there.
The gain he cites seems a little high unless the individual beams
have over 13 dB of gain. After all 20 log10( 128 ) is only 21.07
Usable as an SW beam? Delta match the horizontal boom? Even
modeling that concept would be a chore. It's also too much fun to
pass up, I bet.
I am duly impressed at the effort and (with wry humor and envy)
maintain he has too much money and time on his hands. He's found a
splendid way to cure that problem without resorting to the losers'
solution in drugs. (I watched a coworker decay and then suddenly
leave the company where I worked. He had discovered drugs and had
"too much money." It's sad.) Bravo DL7APV.
On 20220710 13:01:09, Conrad, PA5Y
statement is unfair. Bernd has put a lot of effort into the
project. Take your blinkers off and read the story including
the performance data. What he has achieved is remarkable and
he helps to promote 432MHz EME. Large EME stations like
Bernd’s really increase activity.
of homebrew and effort.
uses open wire feed which is necessary for such a system.
This is not HF!
For some people cocaine is the signal that they have too much
money. I think this guy has a quite different and far more
respectable signal that he has too much money - and time - on
his hands. That must have taken awhile to get phased in and
fed properly. I wonder if he really gets the 21 dB extra gain
that should give him over a single beam. (18 dB would mean he
has a lot of patience and very low loss feed lines across the
Has he started the second one so he can use SDR techniques as
he rotates them together for another 3 dB of gain.
On 20220710 11:03:03, Conrad, PA5Y wrote:
Hello Larry, no the purpose of the
structure is the 128 yagis on 432MHz for EME.
I'm guessing it will be an array of 16
On 7/10/2022 17:20:20, Larry Dodd via groups.io <101science@...>
Yes 10. I missed counting one. Also
looks like the whole array rotated both horizontally and
Interesting image, Larry.
Aren’t there 10 yagis, 8 on top and 2 on the
bottom? And it appears the two on the bottom
might be oriented with the elements in the
vertical plane, as opposed to horizontal like
the top yagis.
Nine rotatable is better!
On Jul 10, 2022, at
12:21 PM, Conrad, PA5Y <g0ruz@...>
Hello Jim, yes Rob
PE1ITR gave me a link earlier today. You
mean this one?
I just emailed them
about shipping to the Netherlands.
You could try the Antennenland Korner
9.2, German company, I don't know if they
ship outside Germany these days. I know
they won't ship to the UK any longer
thanks to Brexshit.
Need help with SDR Console? If you
have a problem:
Go to https://www.sdr-radio.com/support
Please follow instructions in that
Jim, Bournemouth, Dorset. IO90BR.
Elad FDM-S2, Airspy HF+, SDRPlay and
Funcube Dongle SDR Recievers
8-element OP-DES for Band 2, 8-element
LFA for 2m, 3-element LFA for 6m, 20m
Windom for HF,. Wellbrook 1530 Loop
On 10/07/2022 07:31,
Conrad, PA5Y wrote:
OK I will try him
again, he passed it on to Wimo who
The 8 element innov
is very good, it's worth waiting for.
Send Justin a direct mail if you have
As there are
more experienced Band II DXers
lurking can you recommend a Band
II antenna? Max boom-length 5m and
in stock somewhere in
Europe. I ordered an Innovantennas
OPT-DES which has not showed up 16
weeks later, so I cancelled the
order. I have a crappy 3 ele up
now. It was good enough for MUF
tracking but would like something
better for tropo.