HP 8711C User Manual page 251

Calibrating for Increased Measurement
Accuracy
Check the Calibration
Directivity
6-30
深圳市盛腾仪器仪表有限公司
Directivity is a reflection measurement error term.
Corrected directivity less than -40 dB is expected after
calibrations have been performed. This is the same value
you would measure when measuring a load standard.
- 4 0
- 5 0
S t a r t 0 . 3 0 0 M H Z
Figure 6-4. Typical Directivity Error Term
Tel:0755-83589391
L o g M a g 1 0 . 0
Fax:0755-83539691
I
1
Website: www.Sengt.c