TB 9-6625-2340-24
Table 24. Line Related Sidebands - Continued
Test instrument
Line sideband
Marker amplitude displayed
(Hz)
(dB)
Min
Max
300
100
70
360
100
75
420
100
75
480
100
75
540
100
75
100
70
120
100
70
180
100
70
240
100
70
300
100
75
360
100
75
420
100
75
480
100
75
540
b. Adjustments. None.
20. Average Noise Level
a. Performance Check
(1) Connect TI CAL OUTPUT to TI RF INPUT.
(2) Press TI 2-22 GHz, RECALL, 8.
(3) Adjust TI AMPTD CAL for a marker amplitude indication of 10.00 0.02 dB
on TI display.
(4) Disconnect TI CAL OUTPUT from TI RF INPUT.
, 20 W dummy load to TI RF INPUT.
(5) Connect 50
(6) Press TI keys as listed in (a) through (g) below:
0-2.5 GHz.
(a)
START FREQ, 80, Hz.
(b)
STOP FREQ, 180, Hz.
(c)
REFERENCE LEVEL, 70, dBm.
(d)
ATTEN, 0, dBm.
(e)
VIDEO BW, 3, Hz.
(f)
SHIFT, VIDEO BWG.
(g)
(7) Wait until TI display VID AVG readout reaches 15, and then press TI keys as
listed in (a) through (c) below:
SHIFT.
(a)
TRACE B BLANK.
(b)
MARKER NORMAL.
(c)
(8) Tune TI to 100 Hz reading on TI display.
(9) Read the amplitude indicated on TI display. Amplitude indicated will be within
limits specified in table 25.