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No agreement in ITU‑R
WP4C on the measures needed to protect the
RNSS in the 23cm band.
No agreement in ITU‑R
WP4C on the measures needed to protect the
RNSS in the 23cm band.
Not only
Unique 23cm QSO
VK7MO we already
reported.
EI7GL
that QSO
described in details. 4W driver
for 13cm band.
Mostly HF Czech
publications with hamradio matter for download
from
OK5NW web.
Abt.MS
propag. by R&S.
Do you
remember? A bit abt.
EME by R&S.
What is
WIFI 6E? Why
we lost 6cm -> due to silence of CRC? 1.subr.2024 by
OK2C,
OM3KTR.
First 10GHz: OK -
Hawaii
(OK1KIR
- N1V) Congrats!
9cm
Dubus EME Contest. March 2024 issue of the
2m EME
Newsletter, Remind
Aurora
13.3.89? Here is
blackout analysis in Canada. News from the Netherlands: March
23cm
contest by PA0EHG.
PE1RKI produces single 145MHz
cavity filter. VHF
commitee of IARU R1
&
OM3BH
suggestions? After 43 years of QRV our
OK0EP is "in
the band" agn? 1.subr.2024
IARU by:IK4HLQ,
OL7C, Abt."Line
of sight"
&
VHF
propagation.
Newsletter
IARU,
welcome OM3BH.
1.subr. 2024.
IARU by:
OL7M,
OK2PPK,
OK2PVX,
OK6M,
ON4KHG,
OR6T,
F6KFH,
HA8V,
I1KFH, DL3IAS. Standa, OK1MS
had birthday, we
wish him good health.
23cm record of VK7MO
via Lightning Scatter, congrats!
Few ideas how to use
portable trailer.
Transverters of
SQ9MTS. EI7GL released his VHF
Newsletter. OZ9ARR works on the new
EME antenna. Did you prepare similar? BPF
filter for cut off out of band QRM. 1.subr. IARU by:
OK1KKY,
IQ1KW,
S51ZO+S59P.
Well known F6BEG
passed away, RIP! Aurora
3.3
OK1TEH.
1.subr. IARU by:
OK1JFH, OK1KPA,
OL2J, F8KID. Claimed score from:
9A, S5,
OK, OM,
PA,
G
and by IARU. Already today at 19h. will be
held 2m part of
NAC, SP-UKF AC
&
IAC. Invitation to visit Danish
V-UHF news. 1st. subregional contest is over.
Aurora
trembled by
HAARP?. Pavel OK1AIY sent
next part abt. μW history. CAUTION! change of
time frame for logs
delivery of V/UHF
Contests IARU (incl.Subregionals,μW-C).
More here.
Low noise frontend of the receiver input
for
13cm by DD1US. Don't forget
send an announce abt
1.subr. contest. Another HF
transceiver XIEGU
X6200.
Several data like phase noise are not known yet.
But FT8 will be sure.
BPF for 47GHz, developed for cut off of the mirror frequency
products. VHF oscillator with very
low phase noise. Within 1st. IARU subregional contest will
be running
ionosphere heating by experimental
HAARP TX.
Check
Es.
DL3IAS
-
report from Winter BBT. Feb.
QRP-C 2020 OK1FEN. Winter QRP:
OK1TDO.
Dual
mode horn OE2IGL. It came from IARU:
here,
here,
here
&
here. DD1US's
LNA with Miteq 121643-15-17
1v0.
HS60RAST is QRV.
Calendar of Polish VHF/UHF contests
here. Until now
this
record has
broken
by G4KUX
only. SW by W3SZ. New microwave
components by Kuhne. BTW as well
as
1W PA for 47GHz band. VHF/UHF
parts by YU7CF. Not only
antenna construction
by
RW1AW.
L.B.Cebik look
at
antenna a bit different.
SSB envelope control.
OK1XFJ SK
RIP!
He had
67 y.only..Omnidirectional horizont.
polarized
antenna.
part 2,
part 3,
part 4,
part 5
+6. K2UYH sent us new
EME NewsLetter
for UHF & SHF bands.
Parabolic
dish simple calc
for basic parameters.
S-parameters and how to take it.
10GHz LNA from satellite LNB. Ladder
SSB X-tal filter: design &
construction. It's
running now. EME antenna
WB9UWA pics.
On 23cm is suggested to have an
ability
move up to
1300MHz. Measure of LNA
with Miteq
AMF5S-040080-12-13P amplifier for GHz
"mid-bands".
Web
VHFDX.ru is ON again. LNA w. MMIC
SPF5189Z article by DD1US. This
video
confirming again, that banana plug
PL259 is not an UHF. Total termination of hamradio traffic
in 23cm band is still issue for negotiations. VHF Contest's
video IZ0CLS. From:
Michigan V/UHF
Society,
UTAH
VHF
Society,
Texas:
retune of circulator. And maybe we
missed
Aurora.
International evaluation of the VHF
Marconi memorial CW Contest in fact completed our Contest
Season 2023. UHF antenna with isolated elements -
construction details.
Adjust Youtube for your language. EME
HS60RAST.
For download is now a list with the
international results of 2023
VHF
Contest evaluated by IARU C5 rules. From the
same table
you can seen as well as last year
UHF-SHF Contest IARU and many other contests results.
Using
Sun Noise Measure to Evaluate EME System Performance. Actual
calendar of
italian national contests.
From I4CIV
blog:
connection of two 25Ω
antennas into 50Ω feeder.
Construction
and VHF
Contest IZ0CLS. Simple home made
filter against TV
interference from 2m transmitter. Precise UHF antenna
elements lengths. DF2ZC released new 2m
EME
NewsLetter. TEP
DX-pedition
Aruba. VK3FS
believes that microwaves are easy.
Maybe interesting for
someone: Slovak PC logger ->
VHF
Contest log OM3CPW. Panadapter for
IC9700
gear. SMA
antenna relay up to 50GHz. Another coax.
relays. 20W
2m driver.
Calendar of Moon events by DL7APV! CRC released
OK results of MMC2023. On the web archive sheet OK2KKW are
available in our usual
format.
The contest
results archive sheet has updated by EU UHF contest 1960 winners.
Waiting for EU
results 2023. VE7BQH propose again
outline of the best hamradio antenna
designs from the perspective of noise level. W1GHZ send
article abt.
Cassegrain
subreflector.
Adds articles for study
here, here. μW
soldering of 122GHz. OK1TEH wkd via tropo
RA3LBW
QRB
abt.1296km. On the
N5PA VHF web you can find
many interesting links.
Tiny SA ultra
Spectrum
analyzer up to 6GHz.
How to bend
semirigid cables. G4FON web for CW
training. Tomorrow, on 28.&
29.1 would be
awaited
improved tropo condx up to
N
& NE. Try to look
there.
Less than.. Mirek OK1DOM invite you to the Winter
QRP Contest ČAV on Sunday 04.02.24. More at
https://ok5cav.cz/ GL!
First 23cm QSO OK-
FO0 (Clipperton
island) has assigned to OK1DFC. I hope it enjoy him. Tnx 4 info.
VK0DS.
From the Archive:
old 70cm aerials although
out of date
still works well.
Many advices to PWR SSPA projects. Beginners projects by
NTMS:
A,
B,
C,
D. And a bit more complicated matter:
how to solder small SMD devices. Time of
23cm
retune is here.
However we shall wait for EC decision, if they will confirm ITU
negotiation results. Offset
10GHz
EME dish calc.by
KA1GT.
Do you know
inductance of
this coil? EME ops. are
moving by 2 MHz. When you will do at 23, or at 13cm bands
final contest ODX w.I1KFH,
remind they use
OM6AA loop feed. Today is a significant day.. Just 50.years ago the
Nature prepares special
game which
changed
V/UHF
DXing.
Translation
of one
article maybe
can help you to set a
power attenuators for UHF+
frequency bands at home. OK1VAO
released prefinal OK results of the Marconi Memorial Contest
2023 for final check.
Chinese
battery. Precise
RF Wattmeters. KA6U trip
->2m
EME DX from EM62 & EM72.
Will be the NAC
area for
FT8 mildew?
Results
of the RU EME Contest from
last year + calendar for 2024. Noise
source &
noise measurement basics.
Yearly rent fee and electricity for
operation of OK0EP
beacon has paid today. Beacon is QRV already 42 years.
DM2AFN
SK. RIP! Update your score
of hamradio DX results in OK1VEI's
OK
toplist. Russian
tube for 70cm. What would be good to know about LNA
check here. And
G4DDK
paper about LNA power limits. Even
our test.
Nostalgy whiff from time when our hobby was still OK -
YU UHF/SHF Bulletins - do you find there your callsign? SP
society SP UKF
awake and returns
back to
organize
+ evaluate
of VHF-SHF contests.
Join
SP UKF C-test.
January 144MHz
EME
NewsLetter DF2ZC. 2m
LNA.
GEMINI PAs for
VHF & up bands. IC705
USB connector. Into
VHF contests
archive has been added Result list of
OK stations in the IARU UHF/SHF Contest 2023. Join.
CRC (OK1VAO) released final Czech results of the IARU UHF-SHF
Contest 2023 by CRC evaluation. See
here.
IARU shaping the Future?
If yes, why doesn't mention contests & GHz
bands? They doesn't take it into plan? Programmable USB
generator up to 30GHz with output 1/2 W. Beside MS Quadrantids
check 2m EME condx. Any hamradio operator should know, how to do it.
1,
2,
3. New
70cm and above
EME NewsLetter for
Dec.2023. DU3T send us nice
presentation
about his 9cm EME effort in December, when he made first QSO DU -
OK. 65th.edition
of
Contest Romagna CW,SSB. 144MHz
part will be held
already on Jan.7
2024 from 9 to
14h.UT. Did
you sometimes consider about
future of ham
radiocommunication? On
4th. January morning is predicted peak of
Qadrantids meteoritic shower. Join
any nice MS DX QSO! Try Handy
spectrum
analyzer with option up to 6 GHz. Suitable 70cm aerials by
Antennas-Amplifiers Thanks to
OK1VR (96)
for new years wish email! Welcome in 2024. Let me wish you
all good, rock solid health, joy and sunshine by
OK2KKW Radioclub. This year the life will be not easy, but I believe
we will surpass all and will meet after such exertion in peace. Our
Sun celebrated start of new year by
firework
before midnight. ČTÚ (Czech
radiocom.regulator) reminds us that the
Measure of a General Nature informs about the preparation of a
document defining measures for the protection of the satellite
radionavigation service from amateur
operation in the band 23cm & ECC
Radiocommunication Committee of EU wkd on decision include
report on that matter.
Our 2023 news
here.
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QRV LIST -
I. subregional contest 2024
Beacons QRB Maps (1)
(2) (3) (4) Profile
Actual EME condx - by
MMMonVHF
Present MS condx - by
MMMonVHF
Sporadic E web
ES-map
Live MUF
EME CONDX by EA6VQ |
Date |
March 2024 |
02
- 03 |
Poor
- Very poor |
09
- 10 |
Very Good |
16
-17 |
Poor |
23 - 24 |
Moderate |
30 - 31 |
Poor
- Very poor |
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An older news from previous years -
please click here:
2023,
2022,
2021,
2020, 2019,
2018, 2017, 2016,
2015, 2014,
2013,
2012,
2011, 2010,
2009,
2008,
2007,
2006,
2005,
2004, 2003,
2002, 2001
& 2000
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