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104
Chapter 1
Instrument Messages
Instrument Messages
Ins
tr
u
me
nt Messa
g
e
s
Status
Demod ON: reduce span for audible detection
When the Demod function is active and the speaker is turned on, the ratio
of the resolution bandwidth to span must be greater than 0.002 to properly
demodulate and listen to the resulting audio signal. You must decrease the
span to continue the measurement
Status
Ext Ref
(
no corresponding status bit
)
The instrument’s frequency reference has been set to
External Reference
.
This message will appear even if an external reference is not connected to
the instrument. The external reference frequency must also be entered.
Indicates that the frequency reference is being supplied by an external
10 MHz source.
Status
External LO frequency out of range
One or more external LO frequencies are out of range. Check that the LO
frequency limits are set correctly and check the entered measurement
frequencies and measurement mode.
Status
Final IF Overload (IF/ADC Overrange)
The final IF section has been overloaded. Measurement results may be
invalid. Either increase the input attenuation or decrease the input signal
level.
Status
First IF Overload (IF/ADC Overrange)
The first IF section has been overloaded. Measurement results may be
invalid. Either increase the input attenuation or decrease the input level.
Status
Flat corr off (no corresponding status bit)
Indicates that the flatness corrections have been turned off.
Status
FM Demod Align Failure
status bit only, no message
A failure has occurred during the FM Demod alignment. Measurement
results may be invalid.
Status
Freq corr off (no corresponding status bit)
Indicates that the frequency corrections have been manually disabled.
Press
System
,
Alignments
,
Freq Correct
,
(On)
to restore.
Status
Freq Count: Reduce Span/RBW ratio
The span is too wide for the current resolution bandwidth. Either reduce
the span or increase the RBW.
Status
Freq outside cal range
The existing user cal has been invalidated because the current
measurement frequencies lie partially or wholly outside the range of
frequencies used for user-cal.
Содержание ESA Series
Страница 6: ...6 Contents Table of Contents ...
Страница 32: ...32 Instrument Messages Alphabetical Listing Instrument Messages ...
Страница 33: ...33 Instrument Messages 1 Instrument Messages ...
Страница 111: ...111 Functional Tests 2 Functional Tests ...
Страница 118: ...118 Chapter2 Functional Tests Test Equipment Functional Tests ...
Страница 119: ...119 PSA Functional Tests 3 PSA Functional Tests ...
Страница 139: ...139 ESA Functional Tests 4 ESA Functional Tests ...