TB 9-5985-314-24
(8) Calculate the first cal point using the formula -40 + signal generator No. 1 (No.2)
output level - Init dB reading. (Example -40 dBm + (6 dBm) - (-1 dBm) = -33 dBm). Record
this value, as First cal point in table G1 alongside the appropriate test frequency.
(9) Set signal generator No. 1 to the level calculated in (8) above and press the
CALIBRATE key.
(10) Calculate the second cal point using the formula -80 + signal generator No. 1
output level -40 dBm to result of step (8). (Example -80 dBm + (6 dBm) - (-1 dBm) = -73
dBm). Record this value, as Second cal point in table G1 alongside the appropriate test
frequency.
(11) Set signal generator No. 1 to the level calculated in (10) above and press the
CALIBRATE key.
(12) Set signal generator No. 1 to the initial level of +6 dBm.
(13) Press 38.2 and SPCL keys and record the displayed value as First RF cal fac in
table G1 alongside the appropriate test frequency.
(14) Press 38.3 and SPCL keys and record the displayed value as Second RF cal fac
in table G1 alongside the appropriate test frequency.
(15) Press 38.4 and SPCL keys and record the displayed value as Set ref cal fac in
table G1 alongside the appropriate test frequency.
(16) Repeat steps (3) through (15) for each of the test frequencies in table G1.
(17) Press the FREQ and BLUE (SHIFT) AUTO TUNING keys.
(19) Press the GOLD(S) TUNED RF LEVEL, 26.1 and SPCL keys.
(20) Connect TI into figure 7 equipment setup as listed in (a) through (c) below:
(a) INPUT PORT to POINT A.
(b) SIDEARM PORT to 50 : termination.
(c) OUTPUT PORT to POINT B.
(21) Adjust signal generator No. 1 for a power meter indication as recorded in table
G1 as Power meter reading.
(22) Press 39.2 SPCL and enter the First RF cal fac from table G1 for the
appropriate frequency, and press the BLUE (SHIFT) % CAL FACTOR (MHz) keys.
(23) Press 39.3 SPCL and enter the Second RF cal fac from table G1 for the
appropriate frequency, and press the BLUE (SHIFT) % CAL FACTOR (MHz) keys.
(24) Press 39.4 SPCL, enter the Set ref cal fac from table G1 for the appropriate
frequency, and press the BLUE (SHIFT) % CAL FACTOR (MHz) keys.
(25) Measuring receiver indication will be 0.5 dB or less.
(26)
Repeat steps (17) through (24) but replace step (20) with the following:
Connect TI into figure 7 equipment setup as listed in (a) through (c) below:
G-2
