| NEWS Translation from Czech? (1) (2) (3) | Archive:2019,
2018, 2017,
2016,
2015, 2014,
2013, 2012,
2011, |
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For 2021 we wish you good health,
happiness, peace and be cool as a cucumber! See you soon agn on VHF!
We have
final results of
VHF +
UHF Contests IARU in OK. DL0GTH's
documents
here &
here.
New
devices.
Review: MMC by
OL2J +
more. Mixer for
3cm TX from satellite LNB.
500W TWTA maybe usable up to 47GHz? Geminids 2020 by:
OK1TEH,
OK1MZM,
OK2PWY,
OZ8ZS,
SM6FHZ, LA4YGA,
UA
stations.
Leonids
PE1ITR.
MMC OK results for
final check.
Web GS35b.
More.
OK1CDJ
prepares new dish for
13cm gear.
Toward CB. DG7YBN
made analysis of older 70cm antennas DL6WU.
Coaxial connectors for 100+GHz
bands. LWIR
news. G4FRE: a bit another all
band
transceiver (70MHz -24GHz).
More. And what your
score? Frequency
multipliers. Al K2UYH released new
EME NewsLetter
for 70cm & above bands.
Interesting
Guidebook
for Lunar observers. Let us wish to all readers of OK2KKW web Merry
Christmas and peaceful days with their family during holiday!
Combined
patch feed for QO-100 satellite. Remind at least dispense
points in traditional
OK Christmas C-test!
IARU released international results of the
UHF C-test for final check.
It's appreciated. CRC
refused
GHz bands. Non primary hamradio
frequency allocation in DL.
Take a trip to mountains on Monday
evening to see
Big Star!
Time for upgrade of your
24GHz gear?
Try
10W PA. NRA
info.
Termination of
prefinal
OK VHF Contest results?
Another super DX QSO
on 2m +
13cm. 23cm
IARU
info. What
OK1VR
wrote 60 years ago.
122GHz
success. Present
EME
NewsLetter DF2ZC, focused to 2m band.
If you have courage
use small relay. UT1FG/MM
sail.
Extreme DX propagation within Geminids? Looking for more MS DX
QSOs? Try
Ursids!
UHF-C results in
HB9. This web has
no
cookies! Do you have EM
loc? Oscillators +
PLL by DF9NP. UHF-C
results in
OM
&
DL.
Prefinal Czech result list of the IARU UHF Contest 2020 for
final check. OK1AIY's
article about 9cm band.
Peaking of
MS
shower
Geminids. Meteor Scatter
History.
Spectrum meeting 2020 +
Not only...future
of 23cm. More
TEP DX QSO w/o FT8. 23cm
circulator for small PA. And
what about you?
Microwave
video by
VK3CV. Present non-perspective
AC Waves, as well as GHz bands
maybe
will be sometime replaced by
30THz band.
No 60m
band for Australia. Shop with
equipment for
hamradio OK1KIR
completed on
70cm first
QSO
to HI8.
Arrival
of Geminids -
one of the largest
meteoritic shower of
this year.
Exploit your
DX
opportunity!
VK3CV μW. ARRL EME Contest:
ON5GS +
mov1,mov2,
OK1TEH,
OK1DFC,
OK1KIR,
OK1YK,
OK2DL,
PA2V,
WB9UWA.
TEP condx opening:
6000km DX QSO on 2m. Why next
HF band? We would
prefer rather
to keep
3400MHz! Bad news from Thursday:
quick end
of ARECIBO OBSERVATORY:
RIP! And the second one:
OK1DKM SK!
OK VHF
Contest results for final check. Extraterretrial signals
reception info.
VHF Managers Handbook 9.0. MMC C-test
report by OK6M. Radioamateur "Deep space"
reception.
Tropo GHz QSO & more
videos
from VE. 117km
DX
QSO at red light wavelength.
And even beyond horizon! Divergence between
DL
and OK authorities.
GHz
signal relay 1:4. Good
antenna
expert
OK1ZN
is SK. Do you think: is
OK1DFC "Septum feed"
inventor?
OK2KRT abt. UHF C-test
2020. Pics from
MMC OL4N.
Mistake in the
schematics of
IC7400 PA unit.
More. Well-known
VHF designer
UA3DJG
is SK. One of
his PA's.
Waiting for
Aurora?
Justin G0KSC
introduced. Which important
contest
will be held next weekend? Of
course ARRL EME
Contest!
When you try
fix
failure. MMC C-test
reports by
S57M,
S51S and
OM3RLA.
K2UYH released new EME
NewsLetter for
70cm +
above.
New
EME
NewsLetter DF2ZC for 2m band.
23cm EME audiorecords by
SM4GGC. HS0ZOP maybe on
23cm?
The largest radio telescope in the
western world will be destroyed due to rope failure. Potential
repair isn't safe. Kilowatt
solid state PA for 10GHz. 12cm
magnetrons technology is retiring. 20GHz
DDS L.O. QRV
from ISS? Superior
0,4dB NF LNA (not only)
for 77GHz. Very sad news:
Chris OZ2LD
passed away. SK of
HA8BI.
RIP! MMC C-test by
HB9HLM
+
video.
November
tropo by
LA0BY.
N9JIM gear for 122 GHz.
100W PA for 12/
13cm. When you can
receive Moonbounce on 13.9GHz,
try it! Small
13cm
PA. Be in
safe Miro! Pics of PE1RKI
work.
MMC/A1 C-test
2020:
ON4KHG,
DH8BQA, SF6F,
PA1TK. Are you ready for
MS
peak of
Leonids?
More
here.
Logical schematics but
who from you use such topology?
More. ARRL
defend hamradio interests.
But
here?
MMC/A1 Contest
2020
by
OM5ZW
+
French
info.
HF
discoveries.
Super tropo QSO on 70cm: QRB 3163 km!
Finding connection between
celestial lightning over strong Thunderstorms
&
the
Es layer incidence.
More
here.
Use present excellent
EME Condx! SMA connectors for high
microwave bands and development.
By
DG7YBN.
New overview table of the worldwide best Yagi aerials by
Lionel VE7BQH:
144
+
432 MHz.
Tropo
condx to OH?
Transitions between rounded and rectangle
waveguide
by
RA3AQ. 13cm
BPF. New, IARU 87.VHF
Newsletter. Today on 10th
November will be held
classical 70cm
NAC, don't miss
good
tropo & activity to North / North-E.
MMC/A1 Contest
2020 by:
OK1OPT,
OK1ZHS, OM0FC,
DL3IAS.
Claimed results in:
9A, S5,
OK, OM,
PA. Don't be afraid of power transistors in
a
plastic case.
Compare it
here.
More
here. It may
help
you.
Reminder.
1296MHz expedition
EME
project KB7Q.
Video to
139km DX record on 122GHz.
Actual contest score of
MMC.
Leave your announce
about participation in the CW
Marconi Memorial 2m Contest.
Check out the
WX
forecast.
Our contests related database were updated -
see
here,
here
+
here.
MMC on
VHF:
Contest
within Covid times.
Useful tool for
precise
turning of Azimuth
and
Elevation at EHF
tripod.
Article about
upgrade of
DSN 43 in VK.
PA0EHG wrote article
about
cooling of 6mm LNA (NF)
& image
noise.
On Thu and
Fri check FB
TR ->
G! W1GHZ
released FB photos from his visitation of big radio telescopes
in VK. Results
of
ARI EME Contest 2020
Contests overview
has updated.
Well known VHF ham
Alex
RW1AW passed away.
Yesterday on
2m in NAC.
122 GHz tests by:
OK1AIY,
OK1EM,
OK1UFL,
OK2QW +
OK2IMH +
2 and
OK1TEH's note.
Interesting
videos.
PA0EHG's
article about set up of the feed
for
EME.
VE4MA's
interesting EME articles
(TNX!):
1,
2,
3,
4, 5,
6,
7.
Do you have on
2m IP80XD? Till
Monday is there
QRV MS
GM6VXB/p.
Waveguide - microstrip interconnection. October equinox show us again
Mystery of TEP condx.
More. And
in OK? Check
OK1MS log! DX
tropo condx? UHF C-test by
OK1RPL. Remind,
what you here (maybe) read a year ago. Where
FT8 leaded the ham radio.
New
70cm antenna
DG7YBN - good for small 4x14el.
VE4MA: about
77GHz EME -
beat the next final frontier? Report of
DL0GTH in UHF Contest 2020. UHF Contest
by
DH5YM.
More info:
122GHz by K6ML. MS by
EI8HH.
207km DX QSO on
77GHz - video.
More abt. superior microwave
DX QSOs in EN57
loc. 200+W PA
for
13cm.
OK2KKW
Contest report from the IARU UHF Contest
below OK2A call.
Mods. of
PA w.2x BLF7G22L for
13cm. Pressure to
kill VHF Contesting? Why not
enrich HF Contests only?
FT8 is a way from
hamradio to internet.
122GHz Cassegrain feed made by use of 3D print (25MB by W5NYV).
More info about
antennas for 100+
GHz. Hope to hear you soon
above 100GHz. On the
way to
single chip 248GHz transverter? TEH's
tropo log
update. Invitation to
MMC 2020. It looks
well,
as well price
is low, but be
ready
to change an
oscillator
+ add
image
filter.
Meteoritic shower
Orionids. What you think
abt. MS
DXing?
Have you
still
interest?
Dual band
feed 10+24
GHz.
GHz.
NTMS
released
N5RJX presentation abt.10GHz
gear. OFCOM
refused responsibility
for
EMF of
hamradio TXing. What new by
DB6NT (2),
DG7YBN.
Sleewing drive
failure.
Public consultation
EU
focused to
EMC
directives. Contests
logs
OK2A of UHF
Contest 2020. G3DWG
observed
24GHz EME beacon
DL0SHF.
Chile
on
23cm. IARU UHF
Contest 2020: OK5K,
OR6T,
OL1C,
OK2KOJ,
OK5P,
OK1KAD,
I1KFH,
IZ3QFG. 2m
kW PA
US0KW. Still about
VHF Contest IARU -
nice
report by 5P5T.
VHF Contest
by IZ1ESM,
pics:
OL3Y,
OK1OCL
+
9A4QV.
IARU UHF
Contest 2020
by
F6KFH,
IK4WKU
+
abt. more
Italian ops.
Old, but..
OK1UGA
news. Web
R-Quad.
From the HW
of commercial data network. IARU UHF
Contest 2020:
OL3Z,
SP9KJM,
9A2KI. Optical
DX QSO. When you have
SSPA with 50V DC
Supply, you can
use this. If you wkd
YO,
send them your log
as
well as.
International
results of the IARU 2020 VHF Contest for
final check. Possible comments till
30.Oct. to
OM3BH.
This weekend we have
next part of ARRL EME
Contest. K2UYH released new
EME
NewsLetter for 70cm & up. IARU UHF
Contest 2020
by:
OK1KWV,
YO8RXP,
OM3CQF,
SN5R.
Russian
rotator?
More. Burned
LNA
note. Maybe good
for U.
More.
Helpful? When on
70cm you
don't use "twin
pipe"
LNA system, but diversion relays.
IARU UHF
Contest 2020
by:
OK1KUO,
IQ1KW
+ delayed
info OK2KYZ,
OM7KW,
OK6M,
DK0NA from VHF-C. IARU UHF Contest 2020
by:
OM3KTR and
IZ3NOC/5.
Small PA for QO-100,
or
like a
driver for bigger 13cm
PA. IARU UHF Contest 2020
by:
DL3IAS, OM0FC,
S50G,
S59P.
Modification of 122GHz TRX for better modulation. IARU UHF Contest 2020
by:
G3XDY, OK1OPT,
OK1ZHS. Claimed results at:
9A, S5,
OK, OM,
PA and
G.
DF2ZC released EME
NewsLetter for 2m band.
IARU VHF Contest
by
OL3Y +
2.
Activity contest by
OK1FJZ. Leave your
announce about participation in the IARU UHF/SHF Contest
2020 -> last weather forecast is
online. Is it flashing for
better times? FT8 will go out? Web
E74ALM.
Weekend after IARU
UHF-C will be
ARRL EME.
OK1DIX
released new version
(7.00)
of popular VUSC contest log. External
ALC
for K3.
WaveG transitions. . LNB "Bulls
Eye" for QO-100
from pabr.org
web. VHF Contest 2020:
DF7EE,
DK0NA. FD 2020 OM
results.
Delayed
reports from the IARU VHF Contest
2020:
OL9W,
7S7V,
ON4KHG,
OK1TEH,
OL7C. ARRL
in battle. Teflon boards up to
60mm
thickness. Somewhere are
radiotelescope for
µW in build, elsewhere in
demolition.
Some practical comments
to my radio designs include PA Tajfun
modification. Amsat DL
symposium
video
(8h).
More
presentations from
RSGB Convention. Let's
await
Aurora? How
precise
could be inflate d dish in space? How about
signal polarization, when
reflected from Es?
Connectors and cables:
not only for big
VHF
stations. Interesting
presentations
archive, focused to VHF
up bands,
on
WCARC web.
Mapy.cz updated photo
layer. Tropo
condx 17-20.9
by
OK1TEH. ARRL & ARI EME
C-tests
by:
OK2AQ,
OK1CA,
OK1UGA,
OK1KIR,
G3LTF.
If it help you a bit,
after 2 years we measured
again precise
frequency of some beacons,
identified in Prague.
Jirka Sedláček OM3CDR (ex OK3CDR), passed away.
He was one of the legendary OK
VHF DX enthusiasts.
Final
results of the Summer
OK QRP Contest. Where participants (w/o
FT8) w.
10W wkd
QSOs?
Amsat info. Sad message:
on September 17th.
during antenna construction works
Marek OK2VVD tragically died! RIP!
We will remind you. International
results of 50
+
70MHz
C-test IARU.
Who from
OK kept pwr
limit, which shall be already
increased? Abt. 2m DX
beacon
F5ZRB.
More.
3D print of rotator (OK1IEC). ITU Radio
regulations 2020. YU has 70MHz. On 17.9
evening and on Friday await
improved tropo condx
into UK
directon.
ARI EME Contest this weekend.
Interesting
series abt.
radioastronomy satellite
Spektr-R.
First
3cm QSO OK-CX
wkd by OK1KIR,
congrats! 47GHz band
20W PA. SDR reception on
10GHz: project
Hydra.
OK1DAK at
Radiocommunication conference. VHF Contest 2020 by: F6KFH, OL7M.
VE4MA: video abt.waveguide
WR28 & EME
in the desert after 5 years. Logs from OK VHF Contest were
sent,
check
claimed list.
Troubles
with
OK0EB beacon.
It
is
ignominy
of CRC. VHF
Contest
2020
by:
OK1RPL,
OK5T,
OM3KII,
OM3KSI,
OM3KDX,
DR2X
and SF6F.
12.9. meeting
Kozakov.
VHF
Contest
2020
by
OK2DDS,
OK2KAB +
video of
IQ7FG.
For
20+W PA pro 24GHz make a trip to
Carlsbad.
DB6NT gear for 13cm has 800W out.
How to
install PWR transistor on
Copper heatsink? Video rec.
here,
here.
FCC probably will
save for ham radio
part
of 9cm band beside
5G tender. But in
OK
such effort
CRC
damaged.
VHF
Contest
2020 by:
OK1OPT,
OL1C, SN7L,
OM3KTR,
7S7V &
HG1Z.
On 8.9 were good
tropo condx.
More. September UA VHF
Contest
has been open for
all usual bands.
It is an year old, but did you
read it
attentively? VHF
Contest
2020
by:
OK1KUR,
OL2J,
HB9HLM,
IK2OFO,
OR6T,
S50C, SO3Z,
F8KGU. VHF
PWR level 1960.
VHF
Contest
2020
by:
OK1KFH,
DA0FF,
OM0FC,
9A2B. Claimed results list
in:
9A, S5,
OK, OM,
PA,
G
&
Eu. New
EME
NewsLetter K2UYH for 432MHz & above.
OK1UFC
released new paper
for QO100 satellite operation. Remind share
an
info
abt.your participation in the
VHF
Contest IARU R1.
Weather
forecast for the Contest
here. Transatlantic 2m
SSB QSO between human operators with QRB
4842km!
Article
about DX QSO:
EA8 to FM
(!) EA8CXN
created few days ago
new
2m TR DX record
5246km. Congrats! OK1EM
on 122GHz
with VK
x-verter. On 31.8.
we have 68 years anniversary of the first
23cm QSO v
OK. Content update
-
not
only
DX records table. Next
very long cross-mode DX QSO:
3700+ km QRB
on 144MHz has completed even
with
failed RX
EA8CXN? As well as
traditional
Weinheim UKW
Tagung is QRT this
year.
Web pages
G4DBN.
More
+
122GHz
feedhorn.
EME beacon DL0SHF
now QRV on 24GHz with 110W.
In the present crazy time aren't
destroyed
statues
only. 3
years since 23cm
EU tropo
DX record
IARU:
QRB
2662km! SK
OK1IKP.
Remind. August Contest
by
F6KFH. Perseids 2020
by:
OK1DIX,
OK1TEH (2),
OK1UGA,
OK2WO,
DH8BQA,
S50C,
S56P,
UA6.
OL4K
leaved
QTH. RW3BP
gear for 77GHz. Use RS condx.
Optical
QSOs in SP.
2m
VO
freq.plan. Results of July VHF:
DL,
OM. Few pics related to
"microwave
mortuary"
issue.
More
here,
here,
here +
here. Send
us pse
your pics as well
as. Radioamateur hobby is as
well as about
education.
More.
OK1UFC:
generator of precise freq
+
remote
control. Online
RF
calculators. OE2IGL
wrote not only about
waveguides,
but as well as about his
microwave
hardware. In the IARU
VHF +
UHF C-tests
we will meet rivals from
DL
Multi OPs.
Low temp CZ
soldering for PWR
SSPA. Note to
IARU
R1 discussion issue
about
Contests Multi OP
here.
CRC
released for final check
preliminary lists.
IARU R1 wrote,
that they will
adjudicate Multi Op.Category of VHF/UHF/SHF Contests,
if IARU members agree.
W5LUA completed 122GHz
transverter by
VK3CV. G8ACE
on
122GHz
QRB already 28km. Suitable
Al boxes. Big PA
with single transistor.
As well as for 2m. Abt.
transistors
cooling
issue.
More. QRV
725 GHz(!)
Details.
Already 15.8.
will be held
OPEN LY
( +
EW)
VUSHF
CHAMPIONSHIP 020. On 16.8:
OK
PA,
YO U/SHF
C-test. Just at midnight has
launched 2m
Russian EME Contest CW +
MGM. If you have some web anniversary
notes.
On 15th. Aug. we celebrate already
20 years
since start of the hamradio
news web OK2KKW.
TNX for support! DF2ZC released EME
NewsLetter for
2m band.
Perseids
2020: condx
+ gallery.
Lightning rod at
OK1KUR
ant. Summer
QRP Contest by OM/OK1FEN. Forgotten
jubilee of linear transponder OK0A.
New 2m record S51ZO.
EA3ADW
SK.
W6IQ wrote
47GHz adventure.
KB8VAO
and
his
microactivity
+ more interesting microwave
links. Al K2UYH released new UHF/SHF
EME
NewsLetter 8/20. Did you
wkd
IM79? MS Perseids
are here. IARU
Info
Within
next few
days is
peak of
Perseids
MS shower. Keep the
rules of MS operation
incl. 30 seconds
periods! Why the power
23cm microstrips PAs in
ham radio use often burn out? |
Present MS condx - by MMMonVHF
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