Tsys for Mathew's 430Mhz test feed


    The driver circuit for the cal diode was modified to get rid of a cal instability (more info).  The cal deflection was remeasured on 14oct05.  The stability was checked, and the average Tsys was computed. The setup was:

The plots show the cal deflection and the system temperature (.ps)  (.pdf):     Tsys for the receiver is 165 K. The cal value now looks stable.
processing: x101/051014/doitri.pro