3. 10 Mhz Reference - Agilent Technologies 8590L Service Manual

Making Adjustments

3. 10 MHz Reference

3. 10 MHz Reference
This adjustment applies to:
The internal 10 MHz time base is adjusted for frequency accuracy. This
procedure does not adjust for long-term drift or aging rate. Only
short-term accuracy is adjusted.
A frequency counter is connected to the CAL OUT, which is locked to
the 10 MHz reference. This yields better effective resolution.
The time base is adjusted for a frequency of 300 MHz as read by the
frequency counter.
Equipment Required
Figure 2-6 10 MHz Reference Adjustment Setup
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All 8590 E-Series and L-Series spectrum analyzers
8591C cable TV analyzers with Option 704
8594Q QAM analyzers with Option 704
Microwave frequency counter
Frequency standard
Cable, 122 cm (48 in) (two required)
Chapter 2