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The CLRW command enables the clear-write mode, which continuously displays any signals present at the
spectrum analyzer input.
The CLRW command operates on either trace A or trace B. Trace A is discussed below. For detailed information
about the clear-write mode and trace B. see Bl in this section.
The CLRW command initially clears trace A, setting all trace A elements to a zero amplitude level. The sweep
trigger then signals the start of the sweep, and trace A is continuously updated as the sweep progresses.
V I D E O _
DETECTOR
In addition, subsequent sweeps send new amplitude information to display memory addresses 1 through 1023.
Address p! is reserved for the instruction word, 1040'. Therefore, any information stored in memory address 0 is
always lost when CLRW is executed.
If you have used address P, for a graphics program or label, you may wish to save its contents before executing
CLRW
"CLRW TRA;"
OUTPUT 718;
For additional information, refer to Appendix A. The functions of the CLRW command and front panel @
are identical. (See Bl and Al.)
instruction word that
l
ANALOG
DISPLAY
MEMORY
l - 1 0 0 1
10 2 50p2 0 2 5
T O
HEFHESH D'SPLAY
CLRW
Clear/Write
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