Series 8650A Universal Power Meters - Giga-tronics
Series 8650A Universal Power Meters - Giga-tronics
Series 8650A Universal Power Meters - Giga-tronics
- No tags were found...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Adjustments & Performance Tests2.3.4 Instrument Plus <strong>Power</strong> Sensor LinearityTest DescriptionConnect the test setup as shown in Figure 2-5. The linearity will be tested over the range +20 dBm to-60 dBm. At low power levels, the linearity measurement will include the uncertainty due to the zero setspecification. The procedure should be repeated for each sensor used with the <strong>8650A</strong>.Figure 2-5: <strong>Power</strong> Linearity Test SetupWhen measuring the linearity of a high power sensor, the power output of the source as well as thedirectional coupler coupling factor, must be increased. The power coefficient of the step attenuator willalso have to be considered. The specification of power coefficient for the Weinschel attenuator cited inthe Equipment List is: