HP 8642A - Page 266

Performance Tests
Model
864 2A/B
PERFORMANCE TESTS
4-8. RESIDUALS TESTS
SPECIFICA TION:
DESCRIPTION:
EQUIPMENT:
4-16
Electrical Characteristics
Performance limits
Conditions
Residual AM
<0.01 % AM rms
(0.3 to 3 kHz
BW)
Residual FM <5.0 Hz rms
band
10
(0.3 to 3 kHz BW) <2.0 band 9
<1.2 band 8
<1.0 band
1-7
<3.5 band HET
Residual
FM
<9.0 Hz rms
band 10
(0.05 to
15 kHz BW) <5.0 band 9
<2.0 band 8
<1.2 band 1-7
<5.0 band HET
Residuals are demodulated by the measuring receiver using either AM or
FM mode. FM Residual levels are measured in areas where the measuring
receiver can resolve the measured performance of the HP 8642 under test
(in a 0.3 - 3 kHz Bandwidth). If the HP 8642 has been repaired, the
OPTIONAL RESIDUAL FM TEST (4-18), should be performed in addition
to this test. Also, if the Residual FM Test fails, it will be necessary to run
4-18 at the test points given here in 4- 8 to determine if the noise source is
the measuring receiver LO or the HP 8642.
o 0 0 I 10
10 MHz REF EXT
OUTPUT INPUT
MEASURING
CJ 0 D DO DOODO 00 CJC!
RECEIVER
00 ~D~ §§ 888§B 0 ~
HP 8642MB
RF
r
F
OUTPUT
INPUT
SYNTHESIZED
I SENSOR I
SIGNAL GENERATOR
I MODULE I
Figure 4-4. Residuals Test Setup
Measuring Receiver ......................... HP8902A
Sensor Module ................................ HP 11712A