[Moon] QUESTION LINEAR VS CIRCULAR ON 10GHz

Zdenek SAMEK-OK1DFC ok1dfc at seznam.cz
Thu May 19 08:38:59 CEST 2016


Youshiro it is not reason of polarization. It is reason that one of the feed
has slightly low attenuation due to SWR and matching. Sun noise is not 
polarized lignal !

-- 
Zdenek - OK1DFC
www.ok1dfc.com
QRV EME 144 MHz - 10 GHz
WAC 432 - 1296 - 2320 MHz
WAZ #9
DXCC 432 - 1296 MHz


---------- Původní zpráva ----------
Od: Yoshiro Mataka JA4BLC via Moon <moon at moonbounce.info>
Komu: moon at moonbounce.info
Datum: 19. 5. 2016 2:22:56
Předmět: [Moon] QUESTION LINEAR VS CIRCULAR ON 10GHz

"Hi All
We Japanese are testing circular vs linear polarization on 3 cm.
JA6CZD (2.4m Offset dish) measured the sun/moon noise on both polarization;
MAY 17 Circular SUN 14.6dB, MOON 1.6dB
MAY 18 Linear H SUN 16dB, MOON 1.8dB

JA1WQF(2.4m Cassegrain) and JA4BLC (3m Cassegrain) feel same tendency 
(linear is better) as JA6CZD.
All three are using Septum made by PE1RKI.
We wish to know comparison data circular vs linear. If you have any 
suggestion,let me see please.
GL
de Yoshiro JA4BLC
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