Characteristic
Specification
_
494A1494Ap
Service,
Vot.
1
AMPLITUDE
RELATED
CHARAiTERISTICS
tal Informalion
Top
of
the
graticule.
From
-117
dBm
to +50
dBm;
+50
dBm
inctudes
20
dB of
tF gain
reduction
(+30
dBm
is
the
maximum
safe
input).
Alternate
reference
levels
arei
.
dBV
(-130
dBV
to +97
dBV)
o
dBrnv
(-70
dBmV
to +97
dBmV)
o
dBpV (-10
dBpV
to
+157
dBpV)
39.6
nV/Div
to
2.8
v/Div
(Maximum
safe
input
level
is
.t
W
cw
orl0Vpeak)
Dependent
on
the
foltowing
charac-
teristics:
.
RF
Attenuation
Accuracy
o
lF
Gain
Accuracy
r
Resolution
Bandwidth
.
Display
Mode
o
Calibrator
Accuracy
.
Frequency
Band
o
Frequency
Response
o
<blue-SHIFT>
CAL
routine
re_
duces error,between
resolution
bandwidths
at
-20
dBm
REF
LEVEL.
Other
reference
levels
may
have
larger
errors.
o
Ambient
Temperature
Change
(+0.15
dB/"C
maximum)
The
input
RF
attenuator
steps
10
dB
for
reference
level
changes
above
-30
dBm
(-20
dBm
when
MtN
NOISE
is active)
unless
the MIN
RF
ATTEN
setting
is
greater
than zero.
The
lF
gain
increases
10
dB for each
10
dB
reference
level
change
below
-30
dBm
(20
dBm when
MtN
NOISE
is
active)
'1
0 dB
for
the
Coarse
Mode
1 dB
for
the
Fine
Mode
1
dB for
the
Coarse
Mode
0.25
dB
for
the Fine
Mode
1-2-5
sequence
for
Coarse
Mode
1
dB
equivalent
steps
for
Fine
Mode
Reference
Level
Range
Log
Mode
Linear
Mode
Accuracy
Steps
10
dB/div
Log
Mode
2
dBldiv
Log
Mode
Linear
Mode
2-7