執行更佳的頻譜分析儀量測 A f t Time Domain Measurements Frequency Domain Measurements Attenuator RF Input Input Filter Mixer Res. BW Filter Detector Video Filter Ramp Generator Local VCO Oscillator X Display Y 2 DUT 1 cables adapters noise Signal Delivery Network Shift Reference Plane 3 2 Reference Plane TG Output RF Input Coupled Port Short Circuit or DUT Input Port Directional Bridge/Coupler Output Port 4 3 5 4 6 5 Bin# 1 2 3 4 5 6 7 Positive detection Sample detection Negative detection 7 6 Attenuator Input Filter RF Input Mixer Res. BW Filter Detector Gate Video Filter Ramp Generator VCO Local Oscillator X Display Y 8 7 9 8 Upper limit line Lower limit line 10 11 ……