TB 9-6625-2340-35
(e)
VIDEO BW, 1, Hz.
SHIFT, AUTOA.
(f)
MARKER ∆.
(g)
(13) Step synthesizer/level generator output down 10 dB. If TI marker ∆ amplitude
displayed is not within limits specified in first row of table 16, perform b below.
(14) Repeat technique in step (12) and (13) above for remaining synthesizer/level
generator output settings listed in table 16. If TI marker ∆ amplitude indications displayed
are not within limits specified in table 16, perform b below.
Synthesizer/level
generator
Test instrument
Marker ∆ amplitude readout
Output amplitude (dBm)
Min
Max
+10
0
0
0
-10.87
-9.21
-10
-23.10
-17.72
b. Adjustments.
(1) Disconnect synthesizer/level generator 50
OUTPUT from TI RF INPUT.
(2) Set TI LINE switch to STANDBY.
(3) Remove TI top cover.
(4) Remove cables attached to the A3 digital storage cage.
(5) Remove A3 digital storage cage cover.
(6) Reconnect cables removed in (4) above.
(7) Set TI LINE switch to ON.
(8) Press TI keys as listed in (a) through (f) below:
(a)
2-22 GHz.
(b)
CENTER FREQUENCY, 7.6, MHz.
(c)
FREQUENCY SPAN, 0, Hz.
(d)
REFERENCE LEVEL, 10, +dBm.
(e)
RES BW, 10, kHz.
(f)
SCALE LIN.
(9) Connect multimeter HI to A4A1TP1 (fig. 21) and multimeter LO to A3A9TP1
(10) Adjust A4A2R79 (fig. 24) for 0.0000 0.0005 Vdc.
(11) Press TI SCALE LOG key.
(12) Connect TI RF INPUT to synthesizer/level generator 50
OUTPUT.
level of 5 dBm.
