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Chapter 1
103
Instrument Messages
Instrument Messages
In
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Status
Align Now All Needed (Align Needed)
The instrument requires complete alignment. Press
System
,
Alignments
,
Align Now
,
All
. On all Agilent Technologies ESA spectrum analyzer models
except Agilent Technologies E4401B and E4411B, you must connect the
AMPTD REF OUT
to the
INPUT
with the appropriate cable to perform this
alignment.
For Agilent Technologies E4401B and E4411B only:
disconnect
any signals from the
INPUT
prior to performing this procedure. If this
message recurs, load defaults (
System
,
Alignments
,
Load Defaults
) and then
perform
Alignment Now, All
.
Status
Align Now RF Needed (Align Now RF Needed)
The instrument requires RF alignment. Press
System
,
Alignments
,
Align
Now
,
RF (EXT Cable)
. On all Agilent Technologies ESA spectrum analyzer
models except Agilent Technologies E4401B and E4411B, you must
connect the
AMPTD REF OUT
to the
INPUT
with the appropriate cable to
perform this alignment.
For Agilent Technologies E4401B and E4411B
only:
disconnect any signals from the
INPUT
prior to performing this
procedure.
Status
Align RF Skipped (Align RF Skipped)
The RF alignment has been skipped because a 50 MHz signal was detected
at the INPUT; alignment will resume when the 50 MHz signal is removed.
The alignment will not work when there is too much input power at
50 MHz. The instrument may not continue to measure properly. To remove
the message, remove the 50 MHz input signal, then perform an
Align Now
,
RF
. Press
System
,
Alignments
,
Align Now
,
RF
. On all Agilent Technologies
ESA spectrum analyzer models except E4401B and E4411B, you must
connect the
AMPTD REF OUT
to the
INPUT
with the appropriate cable to
perform this alignment.
For Agilent Technologies E4401B and E4411B
only:
disconnect any signals from the
INPUT
prior to performing this
procedure.
If this message occurs and you are going to make a measurement near
50 MHz, select
System
,
Alignments
,
Auto Align
, and
All but RF
.
Status
Align RF Skipped, Align signal amplitude too low
The RF alignment has been skipped because the calibration output power
is too low.
Status
DC Coupled
Indicates the input of the analyzer is DC coupled (
Input/Output
,
Coupling
(DC)
). This setting is necessary when measuring frequencies below 100
kHz on E4402B with Option UKB, E4404B, and E4405B analyzers. For
E4407B analyzers with Option UKB, you must set the coupling to DC
when measuring below 10 MHz. Take care to limit the input level to 0 Vdc
and +30 dBm whenever you are in DC coupled mode.
Summary of Contents for ESA Series
Page 6: ...6 Contents Table of Contents ...
Page 32: ...32 Instrument Messages Alphabetical Listing Instrument Messages ...
Page 33: ...33 Instrument Messages 1 Instrument Messages ...
Page 111: ...111 Functional Tests 2 Functional Tests ...
Page 118: ...118 Chapter2 Functional Tests Test Equipment Functional Tests ...
Page 119: ...119 PSA Functional Tests 3 PSA Functional Tests ...
Page 139: ...139 ESA Functional Tests 4 ESA Functional Tests ...