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EME qso with antenna in loft ??
YES possible:
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I
wrkd G3YEG after several tests with his setup under
roof:
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EME RX with only
a groundplane ? YES |
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Last
SWL report I got from OZ1SKY: He received me via EME with
a groundplane antenna comet
GP9N and a preamp DBA-270 Tnx Brian for
the info |
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2-way EME qso with a dipole? YES we
did it !!!!! |
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Sept 2018 and
again in Jan 2019 I worked MX0CNS only with a dipole on his side!!!!
MX0CNS
with his DG7YBN dipole |
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EME from a
balcony? YES! JF2AIA with
15el. and 30W
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Another qso with a 3el. only ! |
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With JH7PAV, he
used a 3el. and 50W See his
pictures: |
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He head me -21,
not bad for this small system !!!
My trace is easy
to see
Nearly 50w into
a short 5m coaxial TNX to JH7PAV
for the nice pictures! |
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3el. in front
of his house:
3el. + preamp
FT991 barefoot
with preamp |
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I worked in
January 2016 JT65b MX0CNS on EME, Tom with 80w and a 7el.
!! see pic: |
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TOMs 7el.
antenna |
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Screenshot from
TOMs side |
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And the same QSO from my side |
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He was -26 on my
side, easy to copy with his 80w. I know it´s not CW but still amazing what is
possible via EME! So give it a try, EME is a real challenge and if you have
seen traces on the screen it is a thrill to listen in the next step to CW
signals bouncing from the moon !!!!!!!! |
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The next qso took us 4 weeks of attempts when Tom was using only a
3el. DG7YBN & 80W. He was -27 on my side,
easy to copy with his 80w = 340 W EIRP only! |
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Nachdem ich Tom MX0CNS im Januar mit einer 7el.
& 80W arbeiten konnte haben wir im Februar sogar mit einer 4el. & 80W
ein qso geschafft. Nach 4 Wochen testen konnten wir
den Rekord auf ein 3el. & 80W = 340W EIRP verbessern. Im November haben wir
den Rekord nun nochmal verbessert auf eine 2el. & 60W auf Toms Seite. Nun scheint die Grenze des Machbaren
erreicht oder doch noch nicht?........ |
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I worked in January JT65b MX0CNS, Tom with 80w and a 7el. !! and in
Feb even with a 4el. After 4 weeks of testing we
could make it now with a 3el. & 80W = 340W EIRP. And finally, in
November: We extended the record to only a 2el. & 60W on Tom´s side |
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Mit meiner neuen 128el. Konnte ich Tom dann auch noch mit einem
Dipol arbeiten !! |
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ARRL 2009
5W EME QSO on 432 MHz !! |
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Before the ARRL
contest I contacted Dennis W5RZ because I needed his state for WAS. He worked
before HB9Q. We made no sked but he promised to look for me in ARRL contest
if he can hear me. But let Dennis tell the story: |
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I have made
only one QSO before on 432, and that was with HB9Q. I knew that Bernd,
DL7APV, needed Arkansas on 432 so I decided to see what I could do with low
power and a portable antenna. I used two Cushcraft
424B antennas (about 8 wl) and set them up vertically
polarized on a tripod. My FT-897D put out about 15 watts and I knew I was
losing several db in the feedline. With no preamp, I doubted I would even
hear anything. I was surprised to hear Bernd calling CQ on Dec 5th and we
managed to make a QSO. Later that evening I worked HB9Q. The next day, I took
a better reading of power at the antenna and it was only 5 watts!
I found a small amplifier with a receive preamp and put it at the antenna
feedpoint. My power output was still only 12 watts
but the preamp made a tremendous difference on receive. On December 6th, I
heard Bernd calling CQ again with a -14 signal. I asked my wife (N5HX) if she
wanted to make her first EME QSO and she worked Bernd easily. I copied him on
CW later in the evening. I wish there had been more big stations on the band
to test with, but I was very happy to make QSO's with these low power levels.
Terrestrial noise is a problem for me on 2 meters and 432 seems like an ideal
band for EME. Dennis W5RZ |
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Dec. 05 DL7APV
W5RZ O-26
O-26 Dec. 06 DL7APV N5HX
O-24
O-14 Here is the JT65 window the qso
with Dennis, solid copy with 5W !! Pse ignore the
wrong time & date I recalled the wav files today. In contest I had no idea and time to save screen shots !!! |
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Update oct 2021