[Moon-net] 23cm DUBUS contest

[Sergei rw3bp]

Hi all,

This year we participate as multi operator QRP station. Second operator (really the first) was Dmitry RA3AQ. Dish was the same as before - partially extended 2.4m offset with equal diameter abt 2.8m. But it was new feed and new preamp. The feed is two mode horn with step section and improved septum polarizer designed by RA3AQ.
http://www.vhfdx.ru/component/option,com_remository/Itemid,0/func,download/id,220/chk,e0cd0427c413c19a4bc39cf267a1abc2/

 Preamp is my HB with NE334 in front. It gives from 2 to 3 dB improvement in S/N. Sun noise to cold sky ratio improved from 10.5dB to 13.6dB for SF=75. System temperature is better then 30K. As a result 500W (GS34) with 1dB coax loss was too small power. There were few stations we called many times with no reply. Heared and called was SM5LE, LA8AV, NA4N, JA8ERE, PY5ZBU, F5JWF, PA3CSG, W7UPF.
Finally we worked 44 stations 
As a prize was TF/DL1YMK on random.
Thanks to all.

73! Sergey RW3BP