SPG600 & SPG300 Sync Pulse Generators Service Manual 5-1
Adjustment Procedure
This section contains information needed to adjust the sync pulse generator.
The only adjustment in the sync pulse generator is for the master clock frequency.
Requirement for Adjustment
Before proceeding, note the following requirement:
Warm-up Period
The sync pulse generator requires a 20 minute warm-up time in a +20 °C to +30 °C
environment before it is adjusted. Adjustment done before the operating
temperature has stabilized may cause errors in performance.
In addition, the signal generator requires appropriate warm-up time to meet the
frequency accuracy.
Equipment Required
Table 5-1 lists the equipment required to adjust the master clock frequency.
Table 5-1: Equipment required
Item No. Minimum requirement Recommended equipment
Signal generator 1 Frequency: 10 MHz
± 0.05 ppm
Amplitude: 8 dBm
Agilent 8648A option 1E5
75 Ω BNC cable 1 Length: 42 inches Tektronix part no. 012-0074-00
50 Ω-to-75 Ω minimum loss
attenuator
1 Tektronix part no. 011-0057-01
75 Ω coax terminator 1 Length: 42 inches Tektronix part no. 011-0102-01
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