TB 9-6625-2235-24
(b) RESOLUTION BW switch to 300 kHz.
(c) INPUT ATTEN switch to 10 dB (OPTIMUM INPUT switch to -30 dBm).
(d) REFERENCE LEVEL switch to -50 dBm.
(e) Press LIN pushbutton in.
(3) Set variable attenuator 10 dB STEP control to 0 dB.
to -13 dBm.
(5) Set TEST/NORM switch (located on Al2 board) to TEST position.
(6) Adjust signal generator frequency controls for a maximum signal amplitude
display on crt. (Reduce signal generator RF output if necessary).
(7) Press signal generator power switch to STBY position.
Record multimeter
indication as offset value.
(8) Press signal generator power switch to on position and adjust RF output controls
for a multimeter indication of 800 mV, 1 mV (plus offset value recorded in (7) above).
EXAMPLE #1: If offset value ((7) above) is +15 mV (dc):
800 mV
+15 mV
+815 mV (dc)
THEN: Adjust signal generator amplitude output controls for +815 mV
indication on multimeter.
EXAMPLE #2: If offset value ((7) above) is -15 mV (dc):
800 mV
-15 mV
785 mV (dc)
THEN: Adjust signal generator amplitude output controls for +785 mV indication on
multimeter.
(9) Press 10 dB/DIV pushbutton in and adjust A14R23 (fig. 13) for a multimeter
indication of 800 mV, 1 mV (plus offset value recorded in (7) above) (R).
(10) Set variable attenuator 10 dB step control to 60 dB and adjust A14R10 (fig. 13)
for a multimeter indication of 200 mV, l mV (plus offset voltage recorded in (7) above (R).
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