[Moon-net] Activity report 8-9 sept. de SM5LE

vladimir.masek at volny.cz vladimir.masek at volny.cz
Mon Sep 10 05:40:32 CDT 2007


Hi Sven,
do not be so sad. You can share experience e.g. with LA9NEA and others
with 2 to 3 meters.
If you take into account the fact that 2.2m dish vs 4.4m is a double^2,
you would need to have 4x more rf pwr to get signal comparable with
their echoes !
Be sure that the others with such bigger dishes would take much more
attention about you when having 1 kW !! On the other side, it is not
as easy to create such heat, hi.
So, you have to accept only bigger guns with 6m and over to be your favorites
and the smaller would need a sked or think about higer frequency (?).

That's life and our experience at OK1KIR (4.5m dish, f/D=0.42 with very
similar feed)confirmed that many times.
In others words it becomes very hard to break physical axioms and nowadays
really each one dB counts in and makes difference.
We tried to breach physic on CW with Rex, VK7MO without success. BTW,
JT65C signals were great both sides, hi.
GL,
Vladimir
OK1DAK/OK1KIR EME crew  
P.s.
FYI, we are getting your signal from M to O level at maximum but were
off for ARI contest.



----- PŮVODNÍ ZPRÁVA -----
Od: "SM5LE" <sm5le at telia.com>
Komu: "MOON_NET" <moon-net at list-serv.davidv.net>, "Moobounce" <moon at moonbounce.info>
Předmět: [Moon-net] Activity report 8-9 sept. de SM5LE
Datum: 10.9.2007 - 12:26:20

> "High degradation hits small dish" is the headline
> for this week end.
> 
> Sutter day was reasonable with 5 QSO: s in 6 hours.
> BUT Sunday was very bad 1 QSO in 7 hours !
> Why is that so? Is one way propagation possible even
> with circular pol ?  (Something else than Faraday)
> or was it just that the high degradation, 1.8 dB,
> is significant for a 2.2 m dish ?
> 
> 1st day worked: G4CCH, RW1AW, IW2FZR, OK1CA, DF3RU
> and F2TU.
> 
> 2nd day worked: only ON7UN.
> Hrd and called like hel.. sorry , like very much was:
> SM4DHN, K1RQG, K9SLQ, K5JL and K5SO. (Do I hear to
> good for my 250 W @ feed?)
> Hrd in QSO: SV1OE and SP6JLW.
> 
> The Sked with K0ALL was NIL. First sked time I was
> not QRV because I did not get any sked list. Was looking
> on Internet for K1RQG: s sked list but find only old
> ones. Now I have find out that I should ask for a
> "membership" on a mail list "Net Notes by K1RQG" (thanks
> info Howard).
> 
> CU next time in low degradation and high declination
> 
> /Sven SM5LE
> 
> Ps What the difference between MOON_NET and Moonbounce
> mailing lists?
> 
> 
> -----------------------------------------------------------
> SM5LE in JO99bd
> 2.2 meter mesh dish F/D=0.34
> Septum feed OK1DFC. With choke ring.
> 250 W @ feed , CW ( 200W JT65 )
> Spid RAS rotator with MoonSked software by GM4JJJ
> Rig : TS-2000X (with 1296 MHz module).
> LNA : NE32684A cavity NF ~0.3 dB
> 8 dB sun-noise
> CW SSB JT65
> 1296 MHz only
> -----------------------------------------------------------
> 
> 
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> 





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