HP 8340B Manual page 62

4-13. PULSE MODULATION ACCURACY TEST (Cont'd)
4. Press [INSTRPRESET] on both the DUT and the LO. On the DUT, press [CW] [1] [GHz][POWER
LEVEL] [1] [0] [dBm].On the LO, press [CW]
[—]
MHz. Set the LO for +10 dBin or maximum leveled output.
5. Set the oscilloscope horizontal for 50 nanoseconds/division and select channel A input only.
Adjust the channel A (IF carrier input signal) vertical sensitivity to view the entire RF envelope.
HP 8340B/410
It may be necessary to reduce the vertical sensitivity and/or adjust the
DUT's RF output level at some frequencies.
HP 8340B/41B
UNDER TEST
Figure 4-16. Pulse Modulation Accuracy Test
[5] [GHz].The IF frequency is then 50
[.] [9]
LOCAL
OSCI LLATOR
NOTE
Performance Tests 4-65