TB 9-4931-488-24
(30) Set OUTPUT LEVEL switch to +20 dBm and set OUTPUT LEVEL vernier
control(s) fully cw. Adjust A26A1C9 (fig. 3) for maximum measuring receiver indication
(not to exceed +17 dBm).
Figure 3. Test Instrument - Bottom View.
(31) Position controls as listed in (a) through (e) below.
(a) AM X10% pushbutton pressed.
(b) AM switch to AC.
(c) AM control fully cw.
(d) OUTPUT LEVEL switch to +10 dBm.
(e) FREQUENCY TUNE control for FREQUENCY MHz display indication
of 800 MHz.
(32) Adjust OUTPUT LEVEL vernier control(s) for a 0 dB indication on TI meter.
(33) Connect equipment as shown in figure 4.
(34) Set pulse generator controls for a continuous square wave 0.5 ms pulse width
with a 1 kHz rate. Adjust pulse generator output controls for TI meter indication of 40%
(4 on 0 - 10 scale).
(35) Adjust oscilloscope controls as necessary to display detected RF output signal.
Readjust A26A1C9 (fig. 3) slightly (if required) to limit ringing and eliminate oscillations as
indicated on oscilloscope display.
17