TB 9-4931-495-24
(f) RF BLANKING-OFF switch (rear panel) to RF BLANKING.
(g) RF switch to ON.
(h) ALC switch to INT.
(i) FM-NORM-PL switch (rear panel) to NORM.
(j) POWER LEVEL control to 12 o'clock position.
(3) Press CW pushbutton and set CW MARKER pointer and BAND switch to the
settings listed in table 4. If microwave frequency counter does not indicate within limits
specified, perform the appropriate adjustment in b below for band selected.
Table 4. Cw Mode Frequency Accuracy (Model 86290A)
Low end frequency
Mid-Frequency
High end frequency
Cw
Cw
Cw
marker
Frequency
marker
Frequency
marker
Frequency
pointer
counter
pointer
counter
pointer
counter
Band
settings
indications
settings
indications
settings
indications
(GHz)
(GHz)
(GHz)
(GHz)
(GHz)
(GHz)
Min
Max
Min
Max
Min
Max
1
2
1.980
2.020
4.1
4.080
4.120
6.2
6.180
6.220
2
6
5.980
6.020
9.2
9.180
9.220
12.4
12.380
12.420
3
12
11.980
12.020
15
14.980
15.020
18
17.980
18.020
4
2
1.920
2.080
10
9.920
10.080
18
17.920
18.080
(4) Press MARKER SWEEP pushbutton and set MANUAL control fully ccw for
low frequency and fully cw for high frequency check.
(5) Set START MARKER pointer and BAND switch to the settings listed in table
a (1) through (4) above.
Table 5. Manual Sweep Accuracy (Model 86290A)
Manual control fully ccw
Manual control fully cw
low end freq
high end freq
START MARKER
STOP MARKER
Band
Frequency counter
Frequency counter
pointer settings
indications
pointer settings
indications
(GHz)
(GHz)
(GHz)
(GHz)
Min
Max
Min
Max
1
2.0
1.970
2.030
6.2
6.170
6.230
2
6.0
5.970
6.030
12.4
12.370
12.430
3
12.0
11.970
12.030
18.0
17.970
18.030
4
2.0
1.920
2.080
18.0
17.920
18.080
(6) Reset BAND switch to BAND 1 press CW pushbutton, and set CW MARKER
pointer to 4.1 GHz. Note microwave frequency counter indication.
(7) Adjust autotransformer from 105 to 125 V ac. Frequency change from that
noted in (6) above will be less than 100 kHz. Reset autotransformer to 115 V ac.
(8) Connect power meter and microwave frequency counter to RF output, using
power splitter.
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