Sony Tektronix VX4792 User Manual page 259

Performance Verification
F-26
2. To set the VX4792 Arbitrary Waveform Generator controls and select the
waveform file, type:
IBWRTF FREQ.CMD <RETURN>
3. Check clock frequency accuracy:
a. Check clock frequency accuracy at current clock frequency setting:
Check that the frequency counter reading is between 249.9875 MHz and
250.0125 MHz.
b. To check clock frequency accuracy for different clock frequency settings:
H Type:
IBWRT CLOCK:FREQ <FREQ FROM TABLE>" <RETURN>
where <FREQ FROM TABLE> is a frequency command from
Table F–5.
H Change the clock frequency to each value shown in Table F–5.
Check that the frequency counter reading is between the test limits
shown for each clock frequency.
Table F-5: Clock Frequency Settings
Frequency Command
100MHz
1MHz
1kHz
10Hz
4. End procedure: Disconnect the frequency counter.
Clock Frequency
100 MHz
1 MHz
1 kHz
10 Hz
Test Limits
99.995 MHz to 100.005 MHz
0.99995 MHz to 1.00005 MHz
0.99995 kHz to 1.00005 kHz
9.9995 Hz to 10.0005 Hz
VX4792 User Manual