Tektronix CMC251, Руководство пользователя

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Reference
10
CMC251 User Manual
Table 2: Selecting Features For Channel A (1 Hz to 10 MHz)
50 mV to 5 V 3 V to 42 V
INPUT VOLTAGE LO (button out) HI (button in)
LOW PASS FILTER ON (button in) ON (button in)
PRESCALE Button Out Button Out
3. Connect the signal to the CHANNEL A INPUT connector.
4. Press the GATE button to select the desired display resolution.
See Tables 4 and 5 for resolution-versus-gate settings.
Frequencies Below 100 MHz
1. Press the FUNC button until FREQ A is indicated with a lighted
LED.
2. Refer to Table 3 and set the frequency counter front-panel buttons
to obtain the best measurement for frequencies between 10 MHz
and 100 MHz.
Table 3: Selecting Features For Channel A (10 MHz to 100 MHz)
50 mV to 5 V 3 V to 42 V
INPUT VOLTAGE LO (button out) HI (button in)
LOW PASS FILTER OFF (button out) OFF (button out)
PRESCALE Button In Button In
3. Connect the signal to the CHANNEL A INPUT input connector.
4. Press the GATE button to select the desired display resolution.
See Tables 4 and 5 for resolution versus gate settings.