Table 7-12. Second Harmonic Attenuation Test
Control Settings
Performance
Test procedure
Test
Equipment
Step
under test
Equipment
No.
a. None.
a. Adjust TS-421(*)/U frequency
Meter range switch: +20 dB.
TS-421(*)/U:
1
Function switch: SET LEVEL.
F R E Q U E N C Y RANGE switch:
to 200 Hz. Adjust OUTPUT
X10.
Frequency RANGE switch: Xl.
ATTENUATOR and AMPLI-
OUTPUT ATTENUATOR (DB)
TUDE controls for indica-
AF INPUT switch: MAX
(0-100): 100.
tions of +20 dB on TS-723-
OUTPUT ATTENUATOR (DB)
(*)/U
meter.
Adjust
(0-100): 10.
TS-723(*)/U for frequency of
IMPEDANCE switch: 800.
100 Hz.
b. TS-723(*)/U meter shall indi-
b. Turn TS-723(*)/U function
cate +18.5 dB or more.
switch to DISTORTION, and
observe mater indication.
a. None.
a. Same as step 1 a except adjust
Same as step 1 except:
2
Same as step 1 except:
TS-421(*)/U:
F R E Q U E N C Y RANGE switch:
TS-421(*)/U frequency to
F R E Q U E N C Y RANGE switch:
3,000 Hz and TS-723(*)/U
X10.
X100.
to 1,500 Hz.
b. TS-723(*)/U meter shall indi-
b. Same as step 1 b above.
cate +17 dB or more.
.
