Degree Phase O Set Of 2Nd Lo Signals In High Band - HP 8753D Option 011 Service Manual

2N LO Waveforms
The 2nd LO signals appear di erent in phase and shape at di erent frequencies. Refer to
Table 7-3 for convenient test points.
In high band, the 2nd LO is 996
90 egree Phase Offset of 2nd LO Signals in High Band.
kHz. s indicated by Figure 7-13, the 2nd LO actually consists of two signals 90 degrees out
of phase.
Figure PH SEO7 here.

Figure 7-13. 90 egree Phase Offset of High Band 2nd LO Signals ( 16 MHz CW)
RAFT Source Troubleshooting 7-19
3/21/106 15:13
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