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1-16
2715 Spectrum Analyzer Service Manual
Table 1- 4: Amplitude -Related Characteristics (Cont.)
Characteri stic Supplemental InformationPerform ance Requirement
Sensitivity without Preamp Equivalent maximum input noise for
Resolution Bandwidth @110 MHz @ 1.8 GHz @ 2.15 GHz*
q
p
each resolution bandwidth.
5MHz --36 dBmV --28 dBmV –26 dBmV
(--85 dBm) (--77 dBm) –75 dBm)
*Performance measurements above
1.8 GHz refer to the Option 50 and
1MHz --43 dBmV --35 dBmV –33 dBmV
(--92 dBm) (--84 dBm) –82 dBm)
1
.
8
G
H
z
r
e
f
e
r
t
o
t
h
e
O
p
t
i
o
n
5
0
a
n
d
Option 75 instruments only.
300 kHz --48 dBmV --40 dBmV –38 dBmV
(--97 dBm) (--89 dBm) –87 dBm)
Sensitivity decreases linearly approxi-
mately 8 dB from 9 KHz to 1.8 GHz.
A
b
o
v
e
1
8
G
H
z
s
e
n
s
i
t
i
v
i
t
y
d
e
c
r
e
a
s
e
s
100 kHz --53 dBmV --45 dBmV –43 dBmV
(--102 dBm) (--94 dBm) –92 dBm)
A
bo
v
e 1.8 GHz sensiti
v
it
y
de
c
re
a
ses
linearly approximately 10 dB.
N
O
T
E
S
i
i
i
d
d
h
30 kHz --58 dBmV -- 50 dBmV –48 dBmV
(--107 dBm) (--99 dBm) –97 dBm)
NOTE: Sensitivity degrades as the
FREQUENCY setting is decreased
f
r
o
m
a
p
p
r
o
x
i
m
a
t
e
l
y
1
0
M
H
z
t
o
9
k
H
z
10 kHz --63 dBmV -- 55 dBmV –53 dBmV
(--112 dBm) (--104 dBm) –102 dBm)
f
r
o
m
a
p
p
r
o
x
i
m
a
t
e
l
y
1
0
M
H
z
t
o
9
k
H
z
.
Maximum loss in sensitivity is approxi-
mately 20 dB.
3 kHz --68 dBmV -- 60 dBmV –58 dBmV
(--117 dBm) (--109 dBm) –107 dBm)
y
1 kHz --73 dBmV -- 65 dBmV –63 dBmV
(--122 dBm) (--114 dBm) –112 dBm)
300 Hz --78 dBmV --70 dBmV –68 dBmV
(--127 dBm) (--119 dBm) –117 dBm)
Sensitivity with Preamp NOTE. Sensitivity with the Preamp
Resolution Bandwidth @110 MHz @ 1.8 GHz and 2.15 GHz
y
p
enabled is not specified above
6
0
0
M
H
z
5MHz --48 dBmV Not Specified
(--95 dBm)
6
0
0
M
H
z
.
1MHz --55 dBmV Not Specified
(--104 dBm)
300 kHz --60 dBmV Not Specified
(--109 dBm)
100 kHz --65 dBmV Not Specified
(--114 dBm)
30 kHz --70 dBmV Not Specified
(--119 dBm)
10 kHz --75 dBmV Not Specified
(--124 dBm)
3 kHz --80 dBmV Not Specified
(--129 dBm)
1 kHz --85 dBmV Not Specified
(--134 dBm)
300 Hz --90 dBmV Not Specified
(--139 dBm)