TB 9-6625-2296-24
NOTE
Pressing More (F6) key will scroll various options on the
bottom of the display. The options will change the functions
assigned to the F1 through F6 function keys. This may be
necessary to obtain the Freq (F1), Scan (F3), Gen 1 (F2), Res
bw (F1), and Gen 0 (F2) options required in the following
tests.
receiver sensor module using power splitter.
(3) Press ATTEN (F4) and DATA SCROLL arrow keys to set 40 dB, then press
DATA ENTRY ENTER key. Set signal generator for a 10 MHz, 6.1 dB output with no
modulation.
(4) Press Freq (F1) (RF Frequency Display) key, adjust the DATA SCROLL knob,
frequency initial setting. Press DATA ENTRY ENTER key.
(5) Press Scan (F3) (Scan Width) key, adjust DATA SCROLL knob, and press
arrow keys to set TI scan rate to 1 kHz. Press DATA ENTRY ENTER key.
(6) If displayed signal peak is not centered on center vertical graticule line, perform
b (1) through (11) below.
(7) Set measuring receiver to measure frequency. Enter signal generator initial
setting into measuring receiver and press MHz key. Adjust signal generator frequency to
position TI display signal peak on center vertical graticule line, set measuring receiver to
measure FREQ ERROR, and press MHz (INPUT FREQ) key.
(8) Decrease signal generator frequency until displayed signal peak is centered on
second vertical graticule line. If measuring receiver does not indicate within limits
specified in table 13, perform b (1) through (11) below.
(9) Increase signal generator frequency until displayed signal peak is centered on
tenth vertical graticule line. If measuring receiver does not indicate within limits specified
in table 13, perform b (1) through (11) below.
Table 13. Scan Width Accuracy.
Signal
Measuring receiver indications
Test instrument
generator No. 1
Min
Max
Settings
Graticule
initial setting
(kHz)
(kHz)
scan
indication
10 MHz
-4.5
-3.5
1 kHz
2d
10 MHz
3.5
4.5
1 kHz
10th
10 MHz
-9.0
-7.0
2 kHz
2d
10 MHz
7.0
9.0
2 kHz
10th
20 MHz
-22.5
-17.5
5 kHz
2d
20 MHz
17.5
22.5
5 kHz
10th
20 MHz
-45.0
-35.0
10 kHz
2d
20 MHz
35.0
45.0
10 kHz
10th
20 MHz
-90.0
-70.0
20 kHz
2d
20 MHz
70.0
90.0
20 kHz
10th
38