Tektronix SPG8000 Technical Reference page 125

SPG8000 Technical Reference
Perform the following steps to change a zone plate signal's parameters:
1. Press the SDI button and use the down (▼) arrow button to navigate to TEST
SIGNAL. Press the ENTER button to access the TEST SIGNAL submenu.
2. Use the down (▼) arrow button to navigate to ZONE PLATE.
3. Use the left (◄) or right (►) arrow button to select a zone plate signal
from the provided six standard zone plate signals (Circle, Diagonal, H Sine,
H Sweep, V Sine, and V Sweep), or two user-defined signals (Custom-1
Zoneplate or Custom-2 Zoneplate).
4. When the desired zone plate signal is displayed, press the ENTER button to
enter the zone plate parameter menu. If Circle Zoneplate was displayed,
for example, the display changes to:
which shows the zone plate signal (CIRCLE SWEEP) and the pattern control
parameter (Circle Frequency). As mentioned earlier, each of the standard zone
plate signals have a pattern control parameter that is unique to that signal:
Zone plate signal Pattern control parameter
Circle Circle frequency: [x] c/aph
Diagonal Diag. Frequency: [x] c/aph
H Sine Horiz. Frequency: [x] MHz
H Sweep H Sweep Frequency: [x] MHz
V Sine Vert. Frequency: [x] c/aph
V Sweep V Sweep Frequency: [x] c/aph
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c/aph = cycles per active picture height
5. While the pattern control parameter is displayed, you can use the left (◄)
or right (►) arrow button to modify it. This will modify the signal while
maintaining the basic pattern.
NOTE.
Press the left (◄) and right (►) arrow buttons at the same time to reset
any parameter.
6. Use the up (▲) or down (▼) arrow button to scroll through the parameters
menu which, for the predefined signals, starts with it's unique pattern control
parameter as shown in the table above, and then continues through the list
of dependent parameters. At each parameter, whether it's a pattern control
parameter or a dependent parameter, you can use the left (◄) or right (►)
arrow button to modify it.
SDI button menu (Option SDI only)
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