HP E42 manual 5328A Front Panel Operation Summary

Model 5328A

Operation

1.LINE switch 0. In STBY position with light on, supplies power to oven of the high stability time base to maintain a constant temperature for the crystal. In OPER position, supplies normal operating power to the instrument.

2.RESET button~. Resets display and internal count to zero. When continuously depressed, lights all segments of the LED display and all annunciator LED’s for LED test. Returns 5328A to LOCAL CONTROL when HP-IB Interface is in use.

3.FUNCTION selector~. Selects mode of operation.

a.FREQ A. Sets counter to measure frequency at Channel A.

b.FREQ C. Sets counter to measure the frequency of the signal at the Channel C input.

c.PER A. Sets counter to measure period at Channel A.

d.PER AVG A. Sets counter to make a period average measurement of the signal at Chan- nel A. The number of periods over which the average measurement is made is deter- mined by N, selected by the RESOLUTION switch.

e.T.I. AVG A-B. Sets counter to make a time interval average measurement of the time interval from A to B. The number of time intervals over which the average measurement is made is determined by N, selected by the RESOLUTION switch.

f.T.I. A-B. Sets counter to make a time interval measurement. Start signal is applied to Channel A and the stop signal is applied to Channel B.

g. CHECK. Applies 10 MHz to decade counting assemblies. Verifies operation of SAMPLE RATE control, RESOLUTION switch, and RESET.

h.RATIO C/A. Sets counter to measure the ratio of the signal frequency at Channel C to the signal frequency at Channel A.

i.RATlO B/A. Sets counter to measure the ratio of the frequency at Channel B to the fre- quency at Channel A.

j. Top blank position has no function.

Figure 3-6.5328A Front Panel Operation Summary

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