Forwarded by Bunshiro Tamura
Subject: Japanese Venus mission
Date: Sun, 23 May 2010 16:46:35 +0900
From: Yoshiro Mataka JA4BLC
To: apolloeme@om
Hi Pat
My friend Bun JA5FNX has told me to inform you my 5840 antenna using to
listen Japanese mission to Venus.
My antenna is 6m dish covered by 10mm stainless mesh.The feed is W2IMU
horn modified to illuminate f/d 0.7 (means to illuminate central part of
my dish).
As I used EME-RX port to listen the mission and the signal was very
weak. The day after, I connected the preamp to the EME-TX port but the
mission seems not transmitting.
Sun/CS is 9dB, G/CS is 2.2dB and the moon /CS is 0.45dB.
I know the mesh 10mm is too coarse but three weeks before I removed the
central aluminum foil.
Any question is welcome.
GL
de Yoshiro Mataka JA4BLC
1296/2304-2424/5760/10368-10450 EME
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田村文史郎／ＪＡ５ＦＮＸ