TB 9-6625-2235-24
(10) Set RESOLUTION BW switch to 300 kHz and repeat (3) through (8) above. If
difference is not between 240 and 360 kHz, and perform b below.
(11) Set RESOLUTION BW switch to 100 kHz and repeat (3) through (8) above. If
difference is not between 80 and 120 kHz, and perform b below.
(12) Disconnect synthesizer/level generator 50Ω OUTPUT from TI.
(13) Disconnect W7 (red) cable (fig. 1) from A10J2 connector (fig. 1) and connect
signal generator RF output to W7 (red) cable (fig. 1).
(14) Adjust signal generator frequency to 301.4 MHz and RF output level to -12 dBm.
(15) Position controls as listed in (a) through (c) below:
(a) INPUT ATTEN switch to 0 dB (OPTIMUM INPUT switch to -40 dBm).
(b) REFERENCE LEVEL switch to -10 dBm.
(c) RESOLUTION BW to 30 kHz.
(16) Adjust signal generator frequency until TI trace is at peak and adjust signal
generator RF output level control to position trace 7.1 divisions above graticule baseline.
(17) Increase signal generator frequency until trace drops to 5 divisions above
graticule baseline. Record signal generator frequency.
(18) Adjust signal generator frequency in direction opposite to that of (17) above until
trace peaks and then drops to 5 divisions above graticule baseline. Record signal generator
frequency.
(19) Subtract frequency recorded in (18) above from (17) above. If difference is not
between 24 and 36 kHz, perform b below.
(20) Set RESOLUTION BW switch to 10 kHz and repeat (16) through (19) above. If
difference is not between 8 and 12 kHz, perform b below.
(21) Set RESOLUTION BW switch to 3 kHz and repeat (16) through (19) above. If
difference is not between 2.4 and 3.6 kHz, perform b below.
(22) Set RESOLUTION BW switch to 1 kHz and repeat (16) through (19) above. If
difference is not between 0.8 and 1.2 kHz, perform b below.
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