TB 9-6625-2343-40
(f)
SPCL.
(g)
DATA 1.2.
(h)
DATA SPCL.
(i)
DATA 9.3.
(j)
DATA SPCL.
DATA 49., MEASUREMENT S (shift), 1.
(k)
(l)
DATA SPCL.
(5) Adjust calibrator output amplitude for a TI indication of 3.0 Vdc.
(6) Press TI keys as listed in (a) through (d) below:
(a)
DATA CLEAR.
(b)
DISPLAY LOG/LIN.
(c)
BLUE.
(d)
SET REF.
(7) If TI does not indicate 0.00 dBm, repeat (6) (c) and (d) above.
(8) Set piston attenuator to 30 dB.
(9) TI will indicate within limits specified in table 22.
NOTE
TRV is the Test Report Value for the piston attenuator value
selected.
Table 22. IF Average Detector Linearity
Piston attenuator
Test instrument
setting
Min variation
Max variation
(dB)
(dB)
(dB)
30
TRV +0.04
TRV -0.04
(10) Set piston attenuator to 20 dB.
(11) Press TI keys as listed in (a) through (f) below:
(a)
DATA 4.2.
(b)
DATA SPCL.
(c)
DATA 9.1.
(d)
DATA SPCL.
(e)
DATA 50.6.
(f)
DATA SPCL.
(12) Adjust calibrator output amplitude for a TI indication of 3.0 Vdc.
(13) Press TI keys as listed in (a) through (d) below:
(a)
DATA CLEAR.
(b)
DISPLAY LOG/LIN.
(c)
BLUE.
(d)
SET REF.
(14) If TI does not indicate 0.00 dBm, repeat (13) (c) and (d) above.
(15) Set piston attenuator to 30 dB.
42