Marconi Instruments 2955 - Page 12

GENERAL
INFORMATION
AND
DATA
Phase
modulation
CW
range;
1.5 to
1000 MHz.
Deviation
range:
0
to
10
rad.
Automatic ranging (bar chan),
0
to
1,
0
to
3,
0
to
10 rad.
Moduiadon
frequency
range;
300 Hz to
3.4
kHz
(with
respect
to
750
m-s
de-
emphasis).
Resolution;
1%
or
0.01 rad-
Indicadon:
3
digits and
±
peak analogue
display.
Accuracy:
=
6
%
±1
diait at 1 kHz.
±8.5%
±1
digit
from 300 Hz to
3.4
kHz.
Demodulation
distortion:
<
1
%
at
5
rad and 1 kHz modulation frequency
in
a
300
Hz
to
3.4 kHz
bandwidth.
General
SINAD
and S/N
meter section
Frequency:
1 kHz.
Range:
0
to
18 dB, 0
to
50
dB
(SINAD).
0 to
30,
0 to
100
dB
(S/N)-
Resolution;
0.1
dB.
Indication:
3
digits plus analogue
display.
''
Accuracy:
“1
dB.
Sensitivity:
50
mV
(100
mV
for
40
dB SINAD
or
S/N).
Note
...
For
SINAD
and S/N measurements,
residual
FM has to
be
taken
into
account.
General
Distortion meter section
Frequency:
1
kHz.
Range;
0
to
10%,
0 to
30%
distortion.
Resolution:
0,1% distortion.
Indication:
3 digits and
analogue
display.
1-12
46881
-622N
Apr,
88