TB 9-6625-2224-24
(2) Connect power meter to RF POWER OUTPUTS CAL.
(3) Position controls as listed in (a) through (d) below:
(a)
(b)
ALC CAL OUTPUT control fully ccw.
(c)
RF pushbutton pressed to in position.
(d)
NOTE
Before INTERNAL ALC pushbutton is pressed to in position
in (4) below, DBM meter should indicate approximately +1 dBm.
(4) Press INTERNAL ALC pushbutton to in position and adjust ALC CAL
OUTPUT control for a 0 indication on DBM meter. Power meter will indicate
between -9.05 and -10.95 dBm(-14.05 and -15.95 dBm). Record power meter indication.
(5) Adjust FREQUENCY (MC) control from 0800 to 2400. If power meter
indication does not remain within 0.5 dB (0.75 dB) of indication recorded in (4) above,
perform b below.
b. Adjustments. Adjust FREQUENCY (MC) control to settings listed in table 6 below
and perform corresponding adjustment for a -10 dBm (-15 dBm) power meter indication.
NOTE
R614 and R621 interact as do R615 and R620. To simplify the
adjustment, overcorrect when adjusting R614 or R615; then
back off with interacting adjustment R621 or R620.
Test instrument
FREQUENCY (MC)
Adjustments
dial settings
0800
R614
1600 below switch
R621
1600 above switch
R615
2400
R620
12. RF Output Power and Leveled Output Hewlett-Packard, Model 8616A
a. Performance Check
(1) Press RF pushbutton to out position.
(2) Connect power meter to RF POWER OUTPUTS CAL.
(3) Position controls as listed in (a) through (d) below:
(a)
(b)
ALC CAL OUTPUT control fully ccw.
(c)
RF pushbutton pressed to in position.
(d)