Sensor Functional Test Setup With Attenuator; Functional Test Result - HP E4418A Service Manual

6. Connect the 30 dB attenuator as shown in Figure 2-5.
Power Meter
Figure 2-5: Sensor Functional Test Setup with Attenuator
System
7. Press
Inputs
"LOWER". This switches to the power sensor's low range.
8. Verify that the display reads -30 dBm ± 1 dB. Record the reading.
9. Press
Range
sensor's upper range.
10. Verify that the display reads -30 dBm ± 1 dB. Record the reading.
11. Press
Range
12. Disconnect the 30 dB attenuator and reconnect as shown in
Figure 2-4.
13. Verify that an overload error is displayed on the status line at the
top of the power meter's display.
14. Press Range
15. Verify that the display reads 0 dBm ± 1 dB. Record the reading.
Table 2-5: Functional Test Result
Test
Low Range, 30 dB pad
Upper Range, 30 dB pad
Low Range, no pad
High Range, no pad
HP EPM-441A/442A Service Guide
HP E-Series Power Sensor Functional Test
HP E-Series
Power Sensor
HP 11708A
30 dB ATTENUATOR
CHANNEL A
, ,
Input Settings
and set to "UPPER". This switches to the power
and set to "LOWER".
and set to "UPPER".
Channel A
Overload Error
Performance Tests
HP 11730A
, and select
Range
More
Channel B
Overload Error
(HP EPM-442A
Only)
to
2-17