HP 3314A - Page 57

Performance Tests
Model 3314A
3314
L [~ LII
l[o~IEJ
UNIVERSAL
COUNTER
IlL L LI
c.. c.. '" '" e"
INPUT
LLLLL.\-
A
II L L Ll
c.. '- l.. '-' "
00
@l
@l@l
@l~
LLLLLL
I ~ L L L II l!I"l!I Tllfil ~
I/"~M
FEEDTHRU
OUT
TERMINATION
J
,
Figure 4·15. Manual Sweep Accuracy
P. Using the equation: Flatness Error (dB) = 20 Log
(Displayed Amplitude
/.7 .50W, calculate the Flatness
Error in dB for each amplitude entered in the Perfor-
mance Test Record. Compare the result of each calcula-
tion to the specification given in the table.
4·15. MANUAL SWEEP ACCURACY
This test checks the accuracy of the 3314A Manual
Linear Sweep.
Specification:
Manual Linear Sweep Accuracy:
Stop Range
= 20MHz ± 3070 of Stop Frequency
Stop Range
= 2MHz ± 1070 of Stop Frequency
Stop Range
~ 200kHz ± (0,2070 of Stop Frequency
+ 0.1070 of Range)
Equipment Required:
Umversal Counter
50 Ohm Feedthrough Termination
Procedures:
A. Preset the 3314A.
B. Set the 3314A as follows:
Amplitude
.. , .. . ,.... . , . . .. lOVp-p
Stan Frequency , , , .. , IMHz
Stop Frequency .
. . . . . . . . . . . . . . . . . . . .. 10MHz
Sweep , . ,
.. , , . , , . , .. , , .. , Linear
4-18
C. Set the Counter as follows:
Function . , , , , , . . . . . Frequency A
Resolution
, , , , , , , , .. 10Hz
Channel Input ,
, , , , , . , , , , Com
D. Connect the 3314A to the Counter as shown in
Figure 4-15
E. Press the
"MAN SWEEP" key on the 3314A.
F. Press
"START FREQ".
G, Record the frequency reading on the Universal
Counter. Reading should be IMHz
± 300kHz.
H. Set
"STOP FREQ" on the 3314A to IMHz and
"START
FREQ" to 100kHz.
I. Record the frequency readmg on the Umversal
Counter. The readmg should be 100kHz
± 10kHz
J. Set
"STOP FREQ" on the 3314A to 100kHz and
"START
FREQ" to 10kHz.
K. Record the frequency reading on the Universal
Counter. The reading should be 10kHz
± 400Hz.
4·16. STEP AHEN UATOR ACCURACY
This test compares the accuracy of the 3314A Step At-
tenuator against an attenuator of known precision.