TB 9-6625-2079-35
(7) If TI display does not indicate an RF level of between 9.99 and 10.01, perform
b (1) below.
(8) Press TI FUNCTION % AM pushbutton.
(9) Adjust synthesized signal generator AM Depth setting for a TI MODULATION
display indication of 50%.
(10) Enter TI display value into keyboard of measuring receiver and press RATIO
pushbutton (for % reading in display). If measuring receiver does not indicate between 98
and 102 percent, perform b (2) and (3) below.
(11) Repeat technique of (9) and (10) above for TI display indications of 8 and 92
percent. Measuring receiver will indicate between 95 and 105 percent.
(12) Press LOW-PASS (kHz) 200 pushbutton.
(13) Repeat technique of (9) and (10) above for synthesized signal generator AM Rate
frequencies of .05, .1, 10, 15, 30, and 50 kHz.
b. Adjustments
(1) Adjust A11R32 (figure 2) for a TI display indication of 10.00 (R).
(2) Adjust measuring receiver controls to measure 100% AM modulation.
(3) Adjust A11R74 (figure 2) until TI display and measuring receiver display agree (R).
kHz Filters
a. Performance Check
(1) Remove measuring receiver and power splitter from setup and connect
synthesized signal generator RF Output to TI RF IN.
(2) Position TI controls as listed in (a) through (e) below:
(a) LEVEL control to AUTO.
(b) HIGH-PASS (Hz) pushbutton to 10.
(c) LOW-PASS (kHz) pushbutton to 120.
(d) FUNCTION pushbutton to kHz DEV.
(e) RANGE pushbutton to 100.
(3) Position synthesized signal generator controls as listed in (a) through (e) below:
(a)
Frequency Control set to 100 MHz.
(b)
Level Control set to 0 dBm.
FM to On.
(c)
(d)
FM Rate set to 10 kHz.
(e)
FM Deviation set to 100 kHz.
(4) Adjust synthesized signal generator FM Deviation setting for 100 kHz Deviation
as indicated on TI display.
(5) Set synthesized signal generator FM Rate to 10 Hz. TI will indicate >70.7 kHz.
(6) Set synthesized signal generator FM Rate to 10 kHz.
