Table of Contents
Advertisement
13. 20 MHz Reference Adjustments
Press &K?@
Press CnTavj:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..on
Vmarker 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800mv
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..2.7V
start marker . . . . . . . . . . . . . . . . . place at 2.7V crossing
stop marker . . . . . . . . . . . . . place at next 2.7V crossing
2 1. Oscilloscope display should be a 10 MHz signal of TTL level; less
than +0.8V to greater than +2.7V. See Figure 3-58 for a typical
signal.
- 6 0 . 0 0 0 is
Figure 3-58. Typical Signal at A16TP3
22. Install Al6 20 MHz Reference without extenders and reconnect
cable 7 (violet) to A16J3.
23. Connect power meter to front-panel CAL OUTPUT.
24. Adjust A26 CAL LEVEL A16R51 for power meter indication of
-10.0 dBm f0.2 dB.
25. the A23A6 Comb Generator must be readjusted after adjusting the
20 MHz Reference. Refer to Adjustments 22, Comb Generator
Adjustments, for adjustment procedure.
4 0 . 0 0 0 "S
1 4 0 . 0 0 0 ns
2 0 . 0 ns/dlv
Advertisement
Table of Contents
