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Model 5344S
Operation and Programming
3-102.
FRONT PANEL FEATURES
3-103.
Figure 3-6a illustrates the 5344A front panel features. The function of each indicator and
control is described as follows:
INDICATORS
Annunciators
CW
Indicates that the 5344S is in the CW (Continuous Wave) mode (single frequency; no
sweep i. The CW frequency is displayed and may be changed when the FI key is lit.
CF/AF
Indicates that the 5344S is in CF/AF mode (frequency is swept from CF-AF/2to CF + AF/2).
The center frequency is displayed and may be changed when the FI key is lit. The sweep
width is displayed and may be changed when the F2 key is lit.
SIR! STOP
Indicates that the 5344S is in START/STOP mode (frequency swept from START to STOP).
The start frequency is displayed and may be changed when the FI key is lit. The stop
frequency is displayed and may be changed when the F2 key is lit.
LK/R
Indicates that the 5344S is in LOCK/ROLL mode (frequency locked at L/R START, then
released to allow sweeper to control sweep). The starting lock frequency is displayed and
may be changed when the FI key is lit.
NOTE
The MODE key "scrolls" through the four modes listed above. When
the MODE key is pressed, the mode changes from CW to CF/AF, CF/AF
to START/STOP, START/STOP to LOCK/ROLL, LOCK/ROLL to CW. See
MODE KEY.
As the mode changes, the previous frequency parameters are carried into the new mode:
CF = CW
AF = STOP - START
START = CF - AF/2
STOP = CF + AF/2
L/R START = START
CW * L/R START + (STOP-START)/2
Display Digits
The 5344A display contains 11 digit positions. The display is used to show the value of the
currently selected 5344S parameter. It is also used to indicate any error conditions arising
during operation. The rightmost decimal point is used to indicate the position of the rear
panel Mode switch. See paragraph 3-74. When the SWEEPTIME is selected, the characters
S.S. appear on the display. See Sweep Time, paragraph 3-38.
GHz/MHz/S/ms
Indicates the units of the displayed value (gigahertz, megahertz, seconds, milliseconds).
Bar Meter
The meter (10 segment, center scale bar graph) indicates the frequency correction signal
being applied to the signal source. It shows how close the source's uncorrected frequency
is to that desired. The two center bars are dimly lit when the correction signal is near zero.
As the signal moves from zero, the appropriate one of the two center bars switches to full
intensity. As the signal continues to deviate from zero, successive bars light until full scale
is reached. The direction the bar graph moves proportional to the voltage control FM
input of the sweeper.
3-15
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