TB 9-6625-2363-35
Measuring receiver
Test instrument
indications
Amplitude
(dB)
level
Min
Max
7 dBm
6.1
7.9
5 dBm
4.1
5.9
0 dBm1
-0.9
0.9
-10 dBm
-10.9
-9.1
-20 dBm
-20.9
-19.1
-30 dBm
-30.9
-29.1
-40 dBm
-40.9
-39.1
-50 dBm
-50.9
-49.1
-60 dBm
-60.9
-59.1
-70 dBm
-70.9
-69.1
-80 dBm
-80.9
-79.1
-90 dBm
-90.9
-89.1
-100 dBm
-100.9
-99.1
-110 dBm
-110.9
-109.1
1Setup
measuring receiver for tuned RF level cal techniques
and calibrate. Recal as necessary.
a. Performance Check
(1) Connect spectrum analyzer INPUT 50 Ώ to TI RF OUTPUT.
(2) Connect TI 10 MHz OUT (rear panel) to spectrum analyzer 10 MHz REF IN
(rear panel).
(3) Press TI pushbuttons as listed in (a) through (d) below:
(a)
Preset
(b)
(c)
Amplitude, 4, [dBm].
(d)
RF On/Off to on.
(4) Set spectrum analyzer controls as listed in (a) through (g) below:
(a)
Preset.
(b)
AMPLITUDE, [Ref Level], 4, [dBm].
(c)
(d)
BW/Avg, [Res BW], 1, 0, [kHz].
(e)
[Video BW], (Auto).
(f)
SPAN, 1, [MHz].
Marker, [Off].
(g)
(5) Allow display to sweep a few times then set spectrum analyzer controls as listed
in (a) through (d).