TB 9-6625-2258-24
(100)
Replace and fasten TI top cover.
(101) Press POWER pushbutton to ON position.
Harmonic Attenuation Test
a. Performance Check
(1) Press RESET key.
to spectrum analyzer INPUT 50 .
(2) Connect RF OUTPUT 50
(3) Press LEVEL key and set LEVEL display to +13.0 dBm by pressing 13 with
DATA ENTRY keys and then by pressing GHz/dBm/ SEC DATA ENTRY key.
(4) Press FREQUENCY RANGE CW F1 key and set F1 M3 display to 0.010 GHz
by pressing 10 with DATA ENTRY keys and then by pressing MHz/dB/msec DATA
ENTRY key.
(5) Adjust spectrum analyzer controls to view TI fundamental signal near center
frequency graticule on spectrum analyzer display. Note position of second harmonic and
sub-harmonic signals on spectrum analyzer display.
NOTE
Adjust spectrum analyzer controls as necessary to view
fundamental, second harmonic and sub-harmonic signals for
(6) below.
(6) Slowly increase TI frequency to 2.000 GHz by rotating INCR DECR control cw.
Maintain signal near center graticule line of display with spectrum analyzer controls.
Second harmonic amplitude on spectrum analyzer display will be less than -25 dBc (25 dB
below carrier level indicated on spectrum analyzer display) and sub-harmonic amplitudes
will be less than -25 dBc (25 dB below carrier level indicated on spectrum analyzer display).
(7) Press LEVEL key and set LEVEL display to +10.0 dBm by pressing 10 with
DATA ENTRY keys and then by pressing GHz/dBm/SEC DATA ENTRY key.
(8) Press FREQUENCY RANGE CW F1 key and set F1 M3 display to 2.000 GHz
by pressing 2 with DATA ENTRY key and then by pressing GHz/dBm/SEC DATA
ENTRY key.
(9) Adjust spectrum analyzer controls as necessary to view fundamental signal near
center graticule line on spectrum analyzer display.
NOTE
Adjust spectrum analyzer controls as necessary to view
fundamental, second harmonic and sub-harmonic signals for
(10) below.
(10) Slowly increase TI frequency to 18.000 GHz by rotating INCR DECR control cw.
Maintain signal near center graticule line of display with spectrum analyzer controls.
