Chapter 3
77
Operation
Using 8563A, 8561B, 8560A, or 8560 E/EC-Series Spectrum Analyzers
O
p
er
ati
o
n
NOTE
The
PRESEL PEAK
softkey and its lower-level softkeys are only for use with
preselected external mixers. The preselected configuration must initially be
set up using the
EXT MXR PRE UNPR
softkey under
CONFIG
.
CNV LOSS VS FREQ
displays the stored conversion loss for a specific frequency in the
current band. This allows amplitude correction to be entered to
compensate for changes in conversion loss with frequency. To enter a
new value, use the data keys. To change the displayed frequency, use
the step keys. Any changes to the data also affect the mean
conversion loss stored under
AVERAGE CNV LOSS
.
page 77 shows the number of flatness points for each band and the
default flatness values. To view the correction, connect a 310.7 MHz
signal of a known amplitude (approximately
−
30 dBm) to the IF
input and set the analyzer to sweep the associated band.
Table 3-3. Flatness Points and Conversion Losses for Frequencies above 18 GHz
Frequency
Band
Frequency Range (GHz)
Number of
Flatness Points
Point
Spacing
Default
Conversion Loss
K
18.0 to 26.5
6
2 GHz
30 dB
A
26.5 to 40.0
8
2 GHz
30 dB
Q
33.0 to 50.0
7
3 GHz
30 dB
U
40.0 to 60.0
6
4 GHz
30 dB
V
50.0 to 75.0
6
5 GHz
30 dB
E
60.0 to 90.0
7
5 GHz
30 dB
W
75.0 to 110.0
8
5 GHz
30 dB
F
90.0 to 140.0
6
10 GHz
30 dB
D
110.0 to 170.0
7
10 GHz
30 dB
G
140.0 to 220.0
9
10 GHz
30 dB
Y
170.0 to 260.0
7
15 GHz
30 dB
J
220.0 to 325.0
8
15 GHz
30 dB
PRESEL PEAK
(available only with preselected external mixing) displays the
preselected external mixer softkey menu, which is described below.
This softkey menu is only available when the
EXT MXR PRE UNPR
softkey under
CONFIG
is set to “preselected” mode.
Содержание 11974 Series
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Страница 8: ...7 General Information 1 General Information ...
Страница 28: ...27 Installation 2 Installation ...
Страница 47: ...46 Chapter2 Installation Returning Equipment for Service Installation ...
Страница 48: ...47 Operation 3 Operation ...
Страница 57: ...56 Chapter3 Operation Operating Hints Operation Figure 3 4 Setup Configuration for Remote Location of an 11974 ...
Страница 97: ...96 Chapter3 Operation Using 8561A 62A 62B Spectrum Analyzers Operation ...
Страница 98: ...97 Performance Tests 4 Performance Tests ...
Страница 107: ...106 Chapter4 Performance Tests Performance Test Procedures Performance Tests Figure 4 1 Performance Tests Setup ...
Страница 148: ...147 Safety and Regulatory Information 5 Safety and Regulatory Information ...