Spent most of week getting the VNA set up for measurements of full set of S-parameters of amplifiers. 0.25 volts, no phase variation from 25C to 40C temperature, but 0.5 dB variation of gain from 25C to 40C. More S-parameter and gain compression tests next week.
Stabilities are very good, but gain variations across the band are somewhat disappointing.
Started measurements of gain compression. Z. Barnes has LabView ready for testing mixers and total power detectors. We will start testing mixers next week, followed by detectors. Two more spectrum management teleconferences and final-final edits on the receiver immunity document, now on its way to ITU Geneva. Spent the week working on various quickwave problems and further grooved matching layers for windows etc.