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Model 5355A
Operation and Programming
3-15.
Marsyal Mode
3-16.
The manual mode of operation is initiated by pressing the
|
key. To operate in
this mode, the input signal frequency must be known within 50 MHz and this manual frequency
must be entered into the display prior to the measurement. Use of the manual mode is described
in the following paragraph and an example is shown in Table 3-3.
3-17.
Pressing the [ • I
key results in a display of the low frequency listed below (or a
previously entered manual frequency). The [ 0 j ^ key indicator lights and the gold-labeled
key functions are in effect. Press and hold thef • | -ANUAkkey to cause the display to count up
to the high frequency listed below in .1 GHz (100 MHz) steps. Press and hold the I •
W0N key
to cause the display to count down to the low frequency in .1 GHz steps. These keys are used
to set the display to a frequency within .1 GHz of the input signal. Press and release the
{TJ
key to depart the DATA ENTRY function and press j*«"J ^Ak to enter the MEASURE¬
MENT function. The following table lists the high and low frequency displayed for each mode of
the 5356 Frequency Converter Heads:
5356A/B
5356B, Option
5356C
5356C, Option 001
3-18.
OFFSET Mode
3-19.
The OFFSET mode is used to add or subtract a constant to/from a measurement. For
example, a radio frequency can be measured by measuring the local oscillator frequency and
then adding the IF as a positive offset. Use of the OFFSET mode is described in the following
paragraph and an example is shown in Table 3-4.
3-20.
The OFFSET mode of operation is initiated by pressing the J®
in a display of -1 GHz (or a previously entered offset frequency). The
key, which results
key indicator
lights and the blue-labeled key functions are in effect.
[ ® | -ANUAk
I ® JJ '
keys cause the
display to count up or down between 1. and 9. GHz to select the offset frequency. The display
can be expanded and the resolution of the offset frequency increased by using the
® j
keyand
|®l:^
key functions. In addition, l*j'ecPT key can be used for limited
3-6
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