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3. Sweep Time Accuracy
Test
(220 ms)
Equipment
Universal Counter ..........................................
HP
5316A
Digital Voltmeter
...........................................
HP
3456A
Procedure
Sweep Times 220 ms
1. Connect equipment as shown in Figure 2-4.
2. Press [INSTR PRESET) on the spectrum analyzer.
3. Key in the following settings:
(CENTER FREQUENCY)
.....................................
500
MHZ
[FREQUENCY SPAN]
...........................................
0 kHz
4. Set up the universal counter as follows:
a. Set all front panel keys in “out” position.
b. Set POWER switch to ON.
c. Set GATE TIME vernier control to 9 o’clock.
d. Set SEPXOM A switch to COM A position.
e. Depress T.I. A
+
B switch (making sure the blue shift key is
out).
f. Set Channel A trigger level to trigger on negative slope.
g. Set Channel B trigger level to trigger on positive slope.
h. Set both Channel A and Channel B
ac/dc
switches to
de.
i. Connect the digital voltmeter to Channel A TRIGGER LEVEL
OUT. (Be sure to ground the DVM properly.)
j. Adjust Channel A trigger level to set a DVM voltage reading of
0.3 v.
k. Repeat steps i and j for Channel B.
5. Set analyzer @WEEP TIME) to 20 ms. Allow the universal counter
enough time to settle at this sweep time.
2-10
Performance Tests