HP 608E Operating And Service Manual page 21

Model 608E/F
NOTE
Perform turn-on procedures listed in para-
graph
3-9,
and prepare the Model 8708A
Synchronizer for use with the Model 608F
using procedures contained in Section III of
the Operating and Service Manual for Syn-
chronizer 8708A.
1. Align cursor knob with panel marker.
2.
Align FINE FREQ control with panel marker.
3.
Set FREQUENCY RANGE switch
to
desired
range (frequency limits for each range shown
on MEGACYCLES dial housing).
4. Set MODULATION switch to the CW position.
CAUTION
Do not connect any source of RF or dc
power to the RF OUTPUT connector on the
Signal Generator. To do so may permanent-
ly damage the impedance-matching network
in the Attenuator Section. Particular care
must be observed when testing transceiver-
type equipment
lQ
irn;ur~
unn the transmit-
ter remains inoperative while the equipment
is connected to the signal generator (refer
to NOTE in paragraph 3-7).
5. Connect the equipment under test to the RF
OUTPUT connector observing that the signal
generator is terminated in the proper load
(refer to paragraph 3-8).
NOTE
If
deemed necessary, conduct power output
calibration procedures for the selected fre-
quency range as listed in procedural steps
d. through h. in paragraph 3-15.
6. Tune the Frequency Control until MEGA-
CYCLES dial cursor is aligned with frequency
to be used as indicated on the dial face.
Section III
NOTE
To crystal calibrate the frequency, refer to
procedures listed in paragraph 3-13.
7. Depress and tune AMPL TRIMMER control for
maximum indication on RF OUTPUT meter.
8. Adjust RF OUTPUT control until RF OUTPUT
meter pointer is aligned with +7 dBm mark
(ATTENUATOR CALIBRATED).
NOTE
Accuracy of the Attenuator Control setting
and PERCENT MODULATION meter are
within specifications only when the RF OUT-
PUT meter is indicating AT"TENUATOR
CALIBRATED.
9. Adjust Attenuator Control for desired output
level.
10. Connect coaxial cable between UNCAL RFOUT-
1?UT connector on the Model 608F and the RF
INPUT connector (beneath lighted lamp) on the
Model B70BA Synchronizer.
11. Connect coaxial cable between FREQ ANALOG
OUTPUT connector on the Model 608F and the
FREQ ANALOG INPUT connector on the Model
B70BA Synchronizer.
12.
Connect coaxial cable between FREQ CONTROL
INPUT connector on the Model 60BF and the
FREQ CONTROL OUTPUT connector on the
Model B70BA Synchronizer.
NOTE
With the foregoing adjustments and connec-
tions completed phase-lock operation of the
Model 60BF can begin. Frequency or phase
modulation o! the RF carrier can be accom-
plished using the procedures listed
in
Figure
3-2
oC the 870BA Manual.
Figure 3-4. Controls. Indicators. and Connectors used
in Phase-Lock Operation (Model 608F Only)(Cont.)
3-11