TB 9-6625-2235-24
(3) Position controls as listed in (a) through (g) below:
(a) INPUT ATTEN switch to 0 dB (OPTIMUM INPUT switch to -40 dBm).
(b) TUNING control to 30 MHz.
(c) FREQ SPAN/DIV switch to 5 kHz.
(d) RESOLUTION BW switch to 3 kHz.
(e) REFERENCE LEVEL switch to -10 dBm.
(f) Press 1 dB/DIV pushbutton in.
(g) SWEEP TIME/DIV switch to AUTO.
(4) Set variable attenuator to 0.
(5) Configure measuring receiver to measure frequency at .030 GHz with a 00.0
dBm attenuation reference.
controls to -10 dBm.
(7) Perform (a) through (e) below if signal on crt is difficult to locate:
(a) Press RESOLUTION BW switch in to coupled position.
(b) Turn coupled controls (FREQ SPAN/DIV and RESOLUTION BW
switches) cw until signal appears on crt.
(c) Press FREQUENCY CAL pushbutton.
(d) Center signal on crt with TUNING control.
(e) Return controls to positions called out in (2) above.
(8) Position crt trace 6 divisions above graticule baseline with synthesizer/level
generator amplitude controls (reference).
(9) Adjust synthesizer/level generator amplitude output controls and variable
attenuator switch settings to position crt trace to reference established in (6) above while
setting REFERENCE LEVEL switch to values listed in table 8. If measuring receiver
does not indicate within specified limits, perform b below.
(10) Press LIN pushbutton in and repeat (3) through (9) above.
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