5-16.
LEVELED RF OUTPUT ADJUSTMENTS (Cont’d)
44. On the OUT, press [STARTFREQI and enter [1] [3]
[.1
[5] [GHz]. Press [STOPFREQ] and enter
[2] [0] [GHz]. Press [POWER
LEVEL] and using
the front panel rotary knob, adjust for maximum
leveled power. Press [MANUAL]
and
enter [1] [3]
[.1
[5] [GHz].
45. Using the step keys as
described in step 41, step through Band
3.
If
squegging occurs, adjust
A24R8 (X3C) slightly CCW to eliminate the squegging.
NOTE
Test for squegging at power levels from maximum leveled power to —20
dBm in 5 dB increments.
46. On the OUT,
press [SHIFT][PWRSWP]
and enter the
maximum ALC power level that will be a
5
dB
increment below max
leveled power (i.e., 10,5). Repeat step 45 at this power level.
Enter the
next 5 dB increment and repeat step 45 until
the test for
squegging has been performed from
maximum leveled power to —20 dBin. This completes Leveled RF Output Adjustments for an HP
8341B. If testing an HP 8340B, continue with step 47.
Figure 5-60.
Squegging Displayed on Spectrum Analyzer
47. For Band 4, press the
LO [STARTFREQI and enter [1] [9]
[.]
[4] [GHz].Press [STOPFREG] and
enter [2] [5]
[1
[9] [GHz]. Press [MANUAL] and enter [1] [9]
[.1[41
[GHzJ.
48. Press the OUT’s [START
FREQ] and enter [2] [0] [GHz].Press [STOPFREQI and enter [2] [6]
[.]
[5] [GHz]. Press [CONT] and [POWERLEVEL]. Adjust the OUT front panel rotary knob for
maximum leveled power. Press [MANUAL] and enter [2] [0] [GHz].
HP 8340B/41B
Adjustments
5-113
