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Mode! 5344S
Operation and Programming
3-12.
CW In Manual Lock
3-13.
The 5344S attempts to lock the signal source to the selected Continuous Wave (CW)
frequency. If the signal source is too far from the desired frequency for the 5344S to bring it into lock,
the FREQ HI or FREQ LO annunciator is turned on, and the signal source must be manually tuned (as
indicated). When lock is achieved, the LOCKED annunciator lights. If lock is lost, the 5344A turns off
the LOCKED annunciator and again indicates FREQ HI or FREQ LO.
3-14.
CF/AF in Manual Lock
3-15.
The 5344S attempts to achieve a locked sweep of the signal source from:
Center Freq - A Freq
to
Center Freq + A Freq
2
2
using the SWEEP TIME selected by the user. If the signal source is too far from the desired frequency
range, it must be manually tuned (as in CW mode). When lock is achieved, the LOCKED annunciator
is lit. If lock is lost, the 5344S turns off the LOCKED annunciator, and the signal source must be
manually tuned to regain lock. The sweep must not cross 500 MHz, 650 MHz, or 800 MHz, as
described in paragraph 3-50.
If AF = 0, CF/AF operates the same as the CW mode since the sweep
width (AF) = 0.
3-16.
In CF/AF the 5344S can generate 4 separate markers over the sweep range. Discussion of
markers begins in paragraph 3-43.
3-17.
Start/Stop in Manual Lock
3-18.
The 5344S attempts to achieve a locked sweep of the signal source from the selected START
frequency to the selected STOP frequency using the SWEEP TIME selected by the user. If the STOP
frequency is less than START, or STOP-START is too large, an error indication is given, and the locking
process is restarted. If the signal source is too far from the desired frequency range, the signal source
must be tuned (as in CW mode). The capture range, however, is reduced by 1/2. When lock is
achieved, the LOCKED annunciator is lit. If lock is lost, the 5344S turns off the LOCKED annunciator,
and the signal source must be manually tuned to regain lock. The sweep must not cross 500 MHz, 650
MHz, or 800 MHz, as described in paragraph 3-50.
If START — STOP, START/STOP operates the same as the CW mode
since the sweep width = 0.
3-19.
In Start/Stop, the 5344S can generate 4 separate markers over the sweep range. Discussion of
markers begins in paragraph 3-43.
3-20.
Lock/Roll in Manual Lock
3-21.
In the Lock/Roll mode, the 5344S has the ability to provide a highly accurate locked starting
frequency and then uses the sweeper's ability to sweep wide frequency ranges. This combination
gives significantly better accuracy for broad sweeps than a sweeper alone.
3-2
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