Calibration Cycle; Operation Verification; Performance Tests; Internal Crystal Markers - HP 83522A Service Notes

Performance Tests
Model 83522A
4-1 1. CALIBRATION CYCLE
4-12. The performance tests listed in Table 4-2
should be performed in intervals of one year or
less.
4-1 3. OPERATION VERIFICATION
4-14. Operation Verification is a subset of the
performance tests, providing reasonable
assurance that the 8350A Sweep Oscillator and
RF plug-in are operating properly. Paragraph 4-
5 in the 8350A Operating and Service Manual
specifies these tests and includes an HP-IB
Operation Verification program for use with a
9825A/B Desktop Computer.
4-1 5. PERFORMANCE TESTS
NOTE
Allow one hour warm-up of instrument
before attempting the following tests.
PERFORMANCE TESTS
4-1 6. INTERNAL CRYSTAL MARKERS
SPECIFICATION:
Conditions: RF power level
=
i-3 to i-13 dBm; 510 markerslsweep. Harmonic markers of 10
and 50 MHz are available up to 2.4 GHz; 1 MHz harmonic markers are available below 1
GHz. Markers are available as intensity spots or as amplitude dips on the RF output.
DESCRIPTION:
The RF output is detected and displayed on a CRT. Sweep widths are selected to
accomodate 10 harmonic markers generated by the internal 50 MHz crystal. Both amplitude
and intensity markers are verified. The procedure is repeated for 1 and 10 MHz harmonic
markers.
EQUIPMENT:
Sweep Oscillator.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HP 8350A
Oscilloscope
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
H P 1740A
Crystal Detector.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HP 423B
10 dB Attenuator..
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HP 8491A OPT. 010
OSCl LLOSCOPE
SWEEP R F
OSCILLATOR PLUG-IN
/
\
Z-AXIS
-
O o m
o s o o
0 . 0 . .
p .
.o
0 0 0 0 0
gsgss
2 6 a m .
a
. a 0
00
B Q O
a
0 0 0
o
a
CRYSTAL
DETECTOR
A
Figure 4-1. Crystal Marker Test Setup
B
10 dB
ATTENUATO R