[amsat-bb] Re: AO-40 S1 Operations

[Yoshihiro Imaishi <imaishi@xxxxxxxxxxxx>]

Hi This is Yoshi.

At 2001/08/04 21:57:45 Jesse Morris wrote:
> Well, AO-40 had it's real coming out party last night when the S1
> transmitter was turned on.  And as the song goes, "what a swell party it
> was".

  We Japanese had the first chance at yesterday night, The S1 downlink
was excellent! I switched my receiveing antenna from 80cm Dish to single
29ele LOOP Yagi (with Preamp), and I could contact on SSB with only 5W
U-band uplink (with 13dB 11ele crossed-Yagi).

  I got apair of AO40RCV FFT capture image, one is just before the MA=44
and the other is just after.

MA=44 S2-MB -> S1-EB
http://www.geocities.co.jp/SiliconValley/4703/temp/ao40-s1test.gif

MA=80 S1-EB -> S2-MB
http://www.geocities.co.jp/SiliconValley/4703/temp/ao40-s1test2.gif

  This images and the indication of S-meter of my rig did say taht the
S1-EB was 4-5dB stronger than S2-MB. But I felt that the passband
signals was much more better. Maybe the S1-EB is not so much high-level
output as S2-MB (+8dB).

  At around 15:00z, I heard the CW signal of TA1D and also the FIRST
DX PILEUP on AO-40 Hi.

  We are also having that chance now, but I'm in my office and will
not return home until the S1 is on.... My next chance is next Thursday.

73 de Yoshi JF6BCC.


Yoshihiro Imaishi JF6BCC/KH2GR
GL:PM53JV, ex KC6IY(T88IY),V63BP
mailto:jf6bcc@jarl.com
<http://plaza16.mbn.or.jp/~palau/index-hame.html>
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