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Zawody EME - DUBUS 2014 - SP6MLK - 08/09.02.2014r

Szukanie stacji EME /FT-897D/



TYLKO ZAREJESTROWANI I ZALOGOWANI UŻYTKOWNICY WIDZĄ LINKI. DARMOWA REJESTRACJA




Antena 16 elementów F9FT



TYLKO ZAREJESTROWANI I ZALOGOWANI UŻYTKOWNICY WIDZĄ ZDJĘCIA. DARMOWA REJESTRACJA




Wreszcie Księżyc trafiony



TYLKO ZAREJESTROWANI I ZALOGOWANI UŻYTKOWNICY WIDZĄ LINKI. DARMOWA REJESTRACJA




Wzmacniacz mocy QRP /LNA BF981/



TYLKO ZAREJESTROWANI I ZALOGOWANI UŻYTKOWNICY WIDZĄ LINKI. DARMOWA REJESTRACJA




No i udało się dowołać dwie stacje:

OK1MS - RO/O

SP7DCS - M/O

Po wyeliminowaniu wszelkich możliwych źródeł zakłóceń
/zasilacz,komputer,tracking/,można już było słuchać.
Bardzo silne tłumienie trasy,bardzo duże qsb oraz
padający deszcz, nie napawały zbytnim optymizmem.
Ale cierpliwość została nagrodzona.

Byłem zaskoczony ogromnym qsb, gdyż siła sygnału potrafiła
się zmieniać od zaniku, do sygnału w skali RST w czasie
1 minuty u najsilniejszych stacji.

QSO z Krzysztofem SP7DCS robiłem wykorzystując efekt dodatkowego
zysku od ziemi podczas MR, Doppler w tym momencie był 225 Hz
i łatwo moglem odróżnić sygnały....

Słyszałem jeszcze stacje OK1DIX oraz OK1VVP...

Doświadczenia z tych zawodów są nieocenione.

W następnych zawodach na 2m wyposażenie stacji będzie już lepsze:

- 2 x 16 ele. F9FT
- PA 400W
- LNA 0,6dB na ATF-53189

witam kolegę serdecznie i gratuluje widzę że używasz PA z alledrogo. ciekaw jestem jaką moc z niego uzyskałeś ??

gratuluje Staszek
napisz coś więcej o PA

Moduł tego wzmacniacza był na Allegro



TYLKO ZAREJESTROWANI I ZALOGOWANI UŻYTKOWNICY WIDZĄ LINKI. DARMOWA REJESTRACJA



Przy zasilaniu 28V i 22A, tranzystory ulegają uszkodzeniu...

Używam zasilania 26,6V i 17A, sterowanie mocą 20W...z FT-897D

Jak trudne były warunki w zawodach EME - Dubus 2014, można
przeczytać na portalu MOON-NET:

"I had forgotten how tough CW EME is with a degradation of -6db. I was
monitoring MAP 65 at the same time & it was business as usual. Only
reports were slightly down. Hb9Q varied from -24db to -10db.
On CW I started at 17:30Z Saturday !!! worked I2FAK Franco, his signal was
so weak It took me 15 minutes to work Franco. I could only copy A K
So I turned on My call3.brain & figured it could not be Franco because he
was too weak but then I hear I 2... so I figured it had to be Franco.His
signal had flutters & seems to come from deep space. Then I worked OK1DIX
with an outstanding signal. UA3PTW who is everywhere with very good signal
as well, LZ2US Marko must have been running RADIO SOFIA on .51
Heard a call the following stations OZ1HNE, OK1MS until I was blue in the
face. Heard N4GJV RON working LZ2US. Then went QRT at 21:10Z.
On Sunday was on for 1 hour worked no one. Heard LZ2US as usual & heard &
called SK6EI with a VERY strong signal called him & called him. but no
Joy.
-6db degradation is not helpful. But it is what is.
73, Serge VE1KG"


"Hi Serge,

I called you on CW on Saturday 8th on 144,065 MHz for a long time, but
nothing seen or heard from you.
I am QRV on 2m EME since nearly 3 years on JT65B with nearly 500 inits and
76 DXCC, but CW has been
a challenge. I tried to listen and to look after CW stations already
before, but the random way made my
old ears quickly tired and I returned happily back to the visual JT65B
way.
This contest I decided to break this barrier. I simply tried to change the
centre frequency of my SDR IQ+/MAP65
from the usual JT65B band range with 144,125 to 144,050 MHz and wow there
were immediatelly well known traces
visible and to establish the right BFO offset to tune FT897D to the trace
was quickly done, big thrill.
I heard gradually UA3PTW, LZ2US, I2FAK and finally very clear Jorgen
OZ1HNE. I tried to call him and
after a short while was my very first CW 2m EME QSO in my log, thank you
Jorgen very much.
Unfortunatelly the condx became worst and the deep QSB didn't allow me,
with my rather humble array
of 4x9HV elements yagies to continue trying, without at least faint
prospect to finish another QSO.
Sorry Serge, I expected your usual trace, I know from JT65B, to see on
144,065MHz but in vain.
Hopefully next time.

73 to all EMEers, Ivan OK1IL"


"Ivan Welcome to the REAL world. Your system 4X9 too small for -degrees of
degradation. When you have a small station you must do some pre planning. On
the weekend sky noise was over 500K & to add insult to injury we were very
close to Apogee. Not good for small systems
Years ago I use to work KB8RQ & Dave W5UN with 150watts & 1X 13 cuscraft
antenna on CW in those days Perigee took place during a Northern declination
this will not be the case for a while.
Wait for the degradation to be below -3 db then we will make a 30 minutes
sked. With WSJT it does not matter unless it is new moon.
That is the reason most people are on JT!! It is easy. Now on JT you are a
big station & doing very well I must add. On CW you are a small station &
you MUST do some pre planning & make 30 minutes skeds Why 30 minutes
because of faraday rotation although with your XP you will better off than
me. CW is fun but you need the GUNS. One of the station in a sked has to
make up for the path loss, example VE1KG/ KB8RQ QSO 1X13 150 watts. I did
not work Gary!! Gary worked me.
Congratulations working Jorgen OZ1HNE. Jorgen got XP & long antennas. I
heard him but he did not hear me.The only 4 yagi station I heard was N4GJV
Ron. All the other stations were 8 yagis & I2FAK & Marko LZ2US running a
pair of GU78
GL Ivan we will see you on JT where life is easy my friend. But lets prepare
& make a sked for CW soon. You will feel good about it

Serge VE1KG"

Rus K2TXB używał 2 anten KLM 16 BLX w poziomie oraz mocy 1,5kW
/prawdopodobnie do anten dochodziło 600W/.
Od stacji OK1MS ,OK1DIX oraz LZ2US słyszał tylko QRZ...
Nie udało mu się zrobić łączności w zawodach.
Z tego wynika,że trzeba jeszcze trochę mieć szczęścia.