
Performance Verification Tests
4. Take a sweep on the VNA.
5. Select
Scale
>
AutoScale
on the VNA.
6. Select
Marker Search
>
Min
(perform min marker search).
7. Record the marker value as the Measured Insertion Loss of the RF 2 OUT (bypass) path (use the Test
Report Card – page
).
Measure RF 2 OUT (YTF) Insertion Loss
1. Configure the M9360A Soft Front Panel as shown in
Table 11
.
Table 11
Parameter
Value
Notes
Preselector Enable Checked
Only needs to be done in unchecked, You should
hear a "click" indicating a path has been selected..
Custom Settings
Unchecked
Input Frequency
First/next frequency
See
Table 12 - Test Points
.
Input Levels
-15 dBm (same as VNA
power)
This setting is not important to the measurement, it
will affect the attenuator which is manually set.
Custom Settings
Checked
Step Attenuator
0 dB
RF/LO OUT
2 (High-band)
This setting applies to the LO 2 OUT path.
NOTE
: For each measurement iteration (frequency) in
Table 12
, be sure to apply the
Table 11
set-
tings in the specific order (top to bottom in the table).
Table 12 - Test Points
Parameter
Value
RF Center Frequency for YTF path
2.8 GHz
3.1 GHz
10.0 GHz
20.0 GHz
26.45 GHz
2. Configure the VNA as shown in
Table 13
.
Table 13
Parameter
Value
Notes
Center Frequency
Same as M9360A
Should match Input Frequency of M9360A.
Span
100 MHz
Get full YTF shape on screen.
3. Take a sweep on the VNA.
4. Select
Scale
>
AutoScale
on the VNA.
5. Set Marker at VNA center frequency.
6. Record the marker value as the Measured Insertion Loss of the RF 2 OUT (bypass) path (use the Test
Report Card – page
).
7. Repeat steps 1-6 above for each frequency in
Table 12 - Test Points
.
28
Agilent M9360A PXI Attenuator/Preselector Service Guide
Summary of Contents for M9360A
Page 1: ...Service Guide Keysight M9360A PXI Attenuator Preselector 100 KHz to 26 5 GHz ...
Page 2: ......
Page 7: ......