HP4402.book : chapter3.fm 19 Tue Apr 22 15:20:23 1997
Menu Reference
Front Panel Menu Reference "System/Inputs" Menu
HP EPM-441A User’s Guide 3-19
meter to autoranging. Choose either “UPPER”, “LOWER” or
“AUTO” from the selection available using the and
hardkeys. The default is “AUTO”. Refer to “Setting the Range”,
on page 2-36 for further information.
■
Press this softkey to access a menu which allows you to enter
the upper and lower measurement limits. Refer to “Setting
Measurement Limits”, on page 2-30 for further information.
◆
Press this softkey to toggle between the test limits being on
or off. The default is “Off”.
◆
Press this softkey to enter the upper measurement limit in
the range -150 dBm to 230 dBm. The default value is
90.00 dBm. Use the , , and hardkeys to
change the value. To confirm your choice press the
appropriate measurement units. must be greater than
.
◆
Press this softkey to enter the lower measurement limit in
the range -150 dBm to 230 dBm. The default value is
-90.00 dBm. Use the , , and hardkeys to
change the value. To confirm your choice press the
appropriate measurement units. must be less than
.
•
Press this softkey to switch the POWER REF output on or off. This
output is used as the signal source for calibration. This softkey is
commonly used for troubleshooting. 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 display any power meter errors and access a
menu which allows you to clear and scroll through any power
meter errors. The errors are viewed in a first in first out (FIFO)
basis.
Limits
Limits Off On
Max
Max
Min
Min
Min
Max
Power Ref Off On
Error List
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