Wavetek 143 Instruction Manual page 21

Table 5-1. Calibration Chart (Continued)
Cal
Control Desired
Step Check Tester Points
Settings Adjust Results
Remarks
13 1000:1 Scope FUNC-
R16 Symmetrical wave· NOTE:Steps 13and
Sym-
TION
BOD form 14 are interactive.
me
try
OUT
Sym
14 Main
FREQ VERNIER: R35 Symmetrical wave-
Sym- full cw
TOD
form
metry Dial: 2.0
Sym
FREQ MULT: 1 K
15 Sine Distortion
FUNCTION:
'\J
R120
Symmetrical Connect FUNCTION
Distor- Analyzer, Triangle
residue OUT to distortion
ti on Scope
Balance
analyzer and distor·
tion analyzer output
to scope. Set scope
to .1V/div.Syncscope
to SYNC OUT BNC
loaded into
son.
-
16
R93,
Minimum sine If either adjustment is
R107 distortion
going near a stop, re-
Triangle
center both pots and
Peaks return to step 15.
17 Main Frequency FUNCTION:
'1.i
R4
2000 ±10 Hz Remove SYNC OUT
Freq Counter/ TOD
cable.
Timer
Freq
Adj
18
Cap FREQMULT: 10
R48
20 ±0.1 Hz
Mult
Freq
19
X 10M FREQMULT: 10M
C40 Best frequency
Freq Dial: Vary
tracking over
X 10M range
20 X1M
FREQMULT: 1M C34
Best frequency
This adjustment must
Freq Dial: Vary
tracking over
be made each time
X 1M range
step 20 is done.
21 Trigger Scope
FUNCTION:
"v
R162
Minimum shift of
Baseline
GENERATOR
baseline around
MODE: TRIG
0 Vdc
Dial: Vary
5-3