W6HD
TAY HOWARD
2110 GOLDSTRIKE ROAD (OR PO BOX 48)
SAN ANDREAS, CA 95249
Email: hthoward@stanford.edu
Phone 209 754 3255, fax 1770
CM98PF
23.5 CM EME System
6 Meter aluminum frame (3000+ pop rivets) and mesh reflector of 0.375 f/D, fed by
a W6HD three ring scalar horn. The reflector is mounted on an SCR 584 radar pedestal
converted to DC motors. Pointing control uses F1EHN software with absolute position
encoders. Resolution is 0.01 degree; absolute accuracy is better than 0.1 degree.
System temperature in the radar, CP mode is 43K and the EIRP is 4.5 MW.
The eastern horizon is ten degrees; to the west it is 2 degrees. An Icon 970 with the
1296 option drives four solid state modules to 80 Watts output. A YL 1050 Tetrode PA produces
1000 Watts at the feed. The LNA noise temperature is 15K with a total gain of 56 dB
and internal bandpass filtering. Support software includes the AF9Y audio
spectrum analyzer which gives a visual presentation of the IF passband in a
100Hz analysis bandwidth. Receive system performance is monitored using radio stars,
the moon, and solar noise.
October 2000
Weaksignal Detection with the AF9Y MCA
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