Agilent Technologies 8360 L Series, Service Manual

Page: 96 / 603

2. On the oscilloscop e, adjust the external triggering for a display of the 10MHz REF
OUTPUT signal from the syn thesizer:
Channel 1:
Display On
Volts/Division 120 mV
Input Coupling dc
Input Impedance 50
Channel 2:
Display Off
Timebase:
Time/Division 5 ns
Delay 0 s
Delay Reference At center
Sweep Trig'd
Trigger:
Trigger Mode Edge
Trig 3 Level 100 mV
Trigger Src Trig 3
Input Impedance 50
Input Coupling dc
Display:
Display Mode Real time
3. Monitor the time and the display . Note the time required for a 360 phase c hange: T1 =
(s)
4. W ait 3 to 24 hours. Note ho w long y ou w aited: T2 = (h)
5. Repeat step 3. Record the phase c hange time: T3 = (s)
Agilent 8360 P erformance T ests
Internal Timebase: Aging Rate
2-9