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HP4402.book : chapter3.fm 35 Fri Feb 12 15:32:45 1999
Menu Reference
Front Panel Menu Reference "Zero/Cal" Menu
HP E4419B User’s Guide 3-35
■
Press this softkey to calibrate channel B with the connected
power sensor. The POWER REF output is used as the signal
source for calibration and is automatically switched on during
this procedure.
■
Press this softkey to enter a reference calibration factor for
channel B. A value in the range of 1% to 150% can be entered.
The default value is obtained from the sensor calibration table
if one is selected, otherwise it is 100%. Use the , ,
and hardkeys to change the value. To confirm your
choice press . This softkey cannot be selected when you are
using an HP E-series power sensor power sensor.
•
Press this softkey to switch the POWER REF output on or off. This
output is used as the signal source for calibration. The default is
“Off”.
Note During calibration the power meter automatically switches the
power reference oscillator on (if it is not already on), then after
calibration it switches it to the state it was in prior to the
calibration.
•
Press this softkey to switch the Zero/Cal Lockout facility On or
Off. When Zero/Cal Lockout is On, the power meter is prevented
from making a measurement until the sensor connected has been
zeroed and calibrated. This softkey is coupled to the equivalent
softkey in the System Inputs menu.
•
Press this softkey to disable/enable (Off/On) the ZERO and CAL
rear panel TTL inputs.
Cal B
B Ref CF
%
Power Ref Off On
Must Cal Off On
TTL Inputs Off On