TB 9-6625-2340-35
(13) Adjust signal generator No. 3 output level for a -10.00 0.02 dBm indication on
measuring receiver.
(14) Press TI REFERENCE LEVEL, 0, and dBm keys.
(15) Record the marker ∆ amplitude indicated on TI display in Displayed Amplitude
Measuring receiver
Test
indication
instrument
Level
Reference level
Displayed amplitude
(dBm)
(dBm)
(dBm)
-10
0
(16) Press TI REFERENCE LEVEL, 10, and -dBm keys.
(17) Adjust TI AMPLITUDE CAL control to place the signal trace 1 division below
the top graticule.
(18) Press TI MARKER NORMAL and ∆ keys.
(19) Change signal generator No. 3 output level to 6 dBm.
(20) Adjust signal generator No. 3 output level for a 0.00 0.02 dBm indication on
measuring receiver.
(21) Press TI REFERENCE LEVEL, 0, and dBm keys.
(22) Record the marker amplitude indicated on TI display in Displayed Amplitude
Measuring receiver
Test
indication
instrument
Level
Reference level
Displayed amplitude
(dBm)
(dBm)
(dBm)
0
0
(23) Calculate gain compression using the formula below. Calculated value will be
Amplitude @ 0 dBm - amplitude @ -10 dBm = gain compression
(-10 to 0 dBm)
Calculated gain compression (dBm)
Min
Max
-1
1
(24) Press TI keys as listed in (a) through (c) below:
(a)
2-22 GHz.
(b)
SHIFT, ATTEN.
(c)
SHIFT, 0-2.5 GHz, 0, dBm.
80