12-18
IM 704610-01E
Test Procedure
• Test the TA220 after a thirty-minute warm-up.
• While changing the TA220 equalizer boost amount, use the 4395A to measure the
frequency gain from the TA220’s measurement input terminal (RF input) to the
equalized RF signal monitor output terminal (EQUALIZED OUT), and confirm that the
gain is within the allowed range.
Test Procedure
1.
Connect the output terminals (TEST PORT) of the 87512A and 4395A, and
connect the output terminal of the 87512A to channel B of the 4395A. Place the
4395A in frequency gain characteristics measurement mode, then calibrate the
4395A in the 10 kHz to 50 MHz range.
2.
With the 87512A connected to the output terminal (TEST PORT) of the 4395A,
connect the TA220 measurement input terminal (RF input) to the output terminal
of the 87512A, and the TA220 equalized RF signal monitor output terminal
(EQUALIZED OUT) to channel B of the 4395A.
3.
Set the boost amount on the TA220 to 5.8 dB, then check that the difference in
gain between 100 kHz and 16.5 MHz is within the allowable range.
Test Results
Frequency of the 4395
Gain
Difference in Gain
Judgment Criteria
(Measured value)
(Criterion value)
100 kHz
(A)
-
-
16.5 MHz
(B)
(B–A)
5.8
±
0.3 dB
12.6 Performance Test