
NOTE
The Source Control diagram and Connect diagram show
the 10 MHz A front panel output connected to the Time
Base input of the HP 8662A/63A. This output is at
+16 dBm and will over drive the Time Base input if not
attenuated. The correct input level to the HP 8662A/63A
external Time Base is 7 to 10 dBm. The HP 11848A provides
a rear panel 10 MHz A output of +7 dBm designed to be
used for this application.
SOURCE CONTROL
FOR
MERSUREMENT USING
fl
PHASE LOCK LOOP
DUT
USER'S SRCE
MR-NURL CNTRL
_REF S0IJRCE_
3662fl
SYSTEM CNTRL
TIME
10 MHz
'H'
SYSTEM CNTRL
_DN C0NV.___
NOT
IN
USE
HP U848A
TUNE VOLTAGE
DONE Control
Ref.
Time Down
Source Base Conver
t
Figure 6-7. Time Base Tune Voltage Using 10 MHz A
RF Sources 6
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