HP 8568B 12.Time Base Adjustment (SN 2840A and Below, also 3217AO5568 and Above), Cables:, Figure 3-52.Time Base Adjustment Setup

12. Time Base Adjustment (SN 2840A and Below, also 3217A05568 and Above)

12.Time Base Adjustment (SN 2840A and Below, also 3217AO5568 and Above)

Reference

Related Performance Test

Description

RF Section:

A27Al 10 MHz Quartz Crystal Oscillator

Center Frequency Readout Accuracy Test

The frequency of the internal 10 MHz Frequency Standard is compared to a known frequency standard and adjusted for minimum frequency error. This procedure does not adjust the short-term stability or long-term stability of the 10 MHz Quartz Crystal Oscillator, which are determined by characteristics of the particular oscillator and the environmental and warmup conditions to which it has been recently exposed. The spectrum analyzer must be ON continuously (not in STANDBY) for at least 72 hours immediately prior to oscillator adjustment to allow both the temperature and frequency of the oscillator to stabilize.

1

Figure 3-52. Time Base Adjustment Setup

Equipment Frequency Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 5061B Frequency Counter . . . . . . . . . . . . . . . . . . . . . . . . . HP 5334A/B

Cables:

BNC cable, 122 cm (48 in) (2 required) . . . . . . . . HP 10503A

Adjustments 3-95