Raw Offset For The A And B Channels (Es Models) - Agilent Technologies 8719ET Service Manual

8719ET/20ET/22ET
8719ES/20ES/22ES
RF Network Analyzers
11.Recalculate ∆ by taking the power meter reading (PMR), adding 4 and then subtracting
the maximum marker reading (MMR).
∆ = (PMR + 4) − (MMR)
If the magnitude of ∆ is less than 0.15 dB, then the offset for the R channel is correctly
set. For ES models, go to
page 3-51. For ET Models, go to
page 3-54. If the magnitude is greater than 0.15 dB, repeat steps 1 through 11 until the
R channel raw offset correction constant is achieved.

Raw Offset for the A and B Channels (ES Models)

1. Connect the equipment as shown in
Figure 3-14 Setup for the A and B Channels (ES Models)
2. Press the following:
Preset
INPUT PORTS
Meas
TESTPORT 2
Stop 10 G/n
SERVICE MENU
System
SEARCH: MAX
Marker Search
Note the frequency and write it down.
3. Press
Sweep Setup
Press
G/n Marker Search
(MMR) and write it down.
Press . Note the displayed test port power (TPP) and write it down.
Power
Service Guide
"Raw Offset for the A and B Channels (ES Models)" on
"Raw Offsets for the A and B Channels (ET Models)" on
Figure
A
SERVICE MODES
, and enter the maximum frequency point from step 2.
CW FREQ
SEARCH: MAX
Adjustments and Correction Constants
Raw Offset Correction Constants
3-14.
MORE SAMPLER COR OFF
. Note the maximum marker reading
3- 51