TB 9-6625-1914-35
a. Performance Check
(1) Position TI controls as listed in (a) through (d) below:
(a) FREQUENCY controls to 700 MHz.
(c) SCAN WIDTH PER DIVISION switch to 100 MHz.
(2) Position IF plug-in controls as listed in (a) through (d) below:
(a) SCAN TIME PER DIVISION switch to 10 ms.
(b) LOG REF LEVEL controls to +10 dBm.
(c) VIDEO FILTER switch to ON.
(d) SCAN TRIGGER switch to AUTO.
usable display on crt.
(4) Adjust TI frequency control to align the 500 MHz signal pip with the -2 graticule
line on crt. Readjust TI INPUT ATTENUATION and LOG REF LEVEL controls as
necessary.
(5) Adjust signal generator 1000 MHz. The signal pip will align within .5 division
of +3 graticule line.
(6) Set SCAN WIDTH PER DIVISION switch to 10 MHz.
control to align signal pip with the -5 graticule line.
(8) Adjust signal generator frequency to 730 MHz. Signal pip will align within .8
division of +3 graticule line.
(9) Set SCAN WIDTH PER DIVISION switch to 1 MHz and repeat (7) and (8)
above, substituting frequencies of 695 MHz in (7) and 703 MHz in (8).
(11) Position TI controls as listed in (a) through (e) below:
(b) FREQUENCY control to 400 MHz.
(c) VIDEO FILTER switch to OFF.
(d) TUNING STABILIZER switch to OFF.
(e) SCAN WIDTH PER DIVISION switch to 50 kHz.