HP 8753E - PLREF Waveforms

PLREF Waveforms
REF Signal At AllTP9. REF is the buffered PLREF+ signal. The 1st IF is
phase locked to this signal. Use an oscilloscope to observe the signal at the
frequencies noted in Figure 7-9 and Figure 7-10.
High Band RJW Signal. In high band the REF signal is a constant 1 MHz square
wave as indicated by Figure 7-9.
-1.00000 us 0.00000 5 1.00000 us
ch.1
- SOD.0 auoltm/div
off&
- o.wo VOIU
Timsboso - 200 ns/drv DdCby - 0.00000 s
sg611 s
Figure 7-9. High Band REF Signal (216 MHz CW)
Source Troubleshooting 7-17