Chapter 2 207
Front-Panel Key Reference
System (Local)
RF Initiates the alignment of the RF
system. Models E4401B and E4411B
only. This Alignment uses an Internal
Signal Source.
Key Access:
System, Alignments, Align
Now
TG
(Ext Cable)
Initiates the alignment of the tracking
generator only when the Option 1DN is
installed in Agilent E4402B, E4403B,
E4404B, E4405B, E4407B, and
E4408B. You must connect a cable from
RF OUT 50
Ω
to INPUT 50
Ω
Key Access:
System, Alignments, Align
Now
FM Demod
Initiates an alignment of the FM
demodulation system only when Option
BAA or Option 106 is installed.
Key Access:
System, Alignments, Align
Now
After a five minute warm-up, Align Now, All (with a
cable connected from AMPTD REF OUT to INPUT 50
Ω
) should be performed on Agilent E4402B, E4403B,
E4404B, E4405B, E4407B, and E4408B. Refer to your
analyzer’s appropriate Specifications Guide for details
on using
Align Now when Auto Align is Off.
Freq Correct
On Off
Controls use of some of the correction factors. When On
is underlined, frequency correction factors are used.
When Off is underlined, frequency correction factors
are not used, and Freq Corr Off appears on the
display. Turning the correction factors off degrades
frequency accuracy.
Key Access:
System, Alignments
NOTE Frequency correction factors must be on for the analyzer to meet its
specified performance.
Timebase Accesses the Fine and Coarse Timebase menu keys,
which allow control of the 10 MHz time base frequency.
This function is used to verify the settability of the
10 MHz reference and to adjust for changed operating
conditions, such as temperature. Pressing
Load Defaults
or cycling power, resets the time base to its original
value.
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