2.
Press
4
Meas
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ANALYZER TYPE
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NETWORK ANALYZER
,
4
Preset
5
to initialize the HP 4395A. Then
set the controls as follows:
Control Settings Key Strokes
Input Port: R
4
Meas
5
,
NNNNN
R
Format: LINEAR
4
Format
5
,
NNNNNNNNNNNNNNNNNNNNNNN
LIN MAG
Scale/Division: 5
U
4
Scale Ref
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SCALE/DIV
,
4
5
5
,
4
M/
5
Input Attenuator R: 10 dB
4
Scale Ref
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ATTENUATOR MENU
,
NNNNNNNNNNNNNNNNNNNNNNN
ATTEN R
,
4
1
5
,
4
0
5
,
4
x1
5
Input Port: A
4
Meas
5
,
NNNNN
A
Format: LINEAR
4
Format
5
,
NNNNNNNNNNNNNNNNNNNNNNN
LIN MAG
Scale/Division: 5
U
4
Scale Ref
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SCALE/DIV
,
4
5
5
,
4
M/
5
Input Attenuator A: 10 dB
4
Scale Ref
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ATTENUATOR MENU
,
NNNNNNNNNNNNNNNNNNNNNNN
ATTEN A
,
4
1
5
,
4
0
5
,
4
x1
5
Input Port: B
4
Meas
5
,
NNNNN
B
Format: LINEAR
4
Format
5
,
NNNNNNNNNNNNNNNNNNNNNNN
LIN MAG
Scale/Division: 5
U
4
Scale Ref
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SCALE/DIV
,
4
5
5
,
4
M/
5
Input Attenuator B: 10 dB
4
Scale Ref
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ATTENUATOR MENU
,
NNNNNNNNNNNNNNNNNNNNNNN
ATTEN B
,
4
1
5
,
4
0
5
,
4
x1
5
Source Power:
0
50 dBm
4
Source
5
,
NNNNNNNNNNNNNNNNN
POWER
,
4
-
5
,
4
5
5
,
4
0
5
,
4
x1
5
Frequency Span: 0 Hz
4
Span
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ZERO SPAN
IF BW: 10 Hz
4
Bw/Avg
5
,
NNNNNNNNNNNNNNNNN
IF BW
,
4
1
5
,
4
0
5
,
4
x1
5
Number of Points: 51
4
Sweep
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NUMBER of POINTS
4
5
5
,
4
1
5
,
4
x1
5
Statistics: ON
4
Utility
5
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
STATISTICS on OFF
(Then the softkey label
changes to
N
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
STATISTICS ON off
.)
3. Press
4
Center
5
,
4
1
5
,
4
0
5
,
4
0
5
,
4
x1
5
to set the HP 4395A center frequency to the rst center
frequency 100 kHz listed in Table 2-10.
Table 2-10. Receiver Noise Test Settings
HP 4395A
Center Frequency
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
11 MHz
101 MHz
499 MHz
4. Perform the following steps to measure the receiver noise level.
a.
Press
4
Meas
5
,
N
NNNN
R
to set the HP 4395A input to R input.
b.
Press
4
Trigger
5
,
NNNNNNNNNNNNNNNNNNNN
SINGLE
to make a sweep.Wait for the completion of the sweep.
c. Record the HP 4395A trace mean value [Unit] in the calculation sheet (\Trace Mean"
column). The trace mean value is displayed as a marker statistic (mean) in the upper
right-hand corner of the display.
Performance Tests 2-21
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