Marconi Instruments 2955 - Page 8

GENERAL
INFORMATION
AND
DATA
Audio
Output
impedance:
Frequency
Range;
Resolution:
Indication;
Setting:
Accuracy;
Signal
purity
Distortion:
Spurious
signals:
Residual
noise:
DC
offset:
Fixed
frequency:
Accuracy:
Distortion:
Residual
noise:
DC offset:
Two-tone
setting:
Output
level
(ElVIF}
Range:
Accuracy:
Seuing:
generator and
1
kHz
oscillator section
5 n nominal.
50 Hz to 15 kHz
(usable 20 Hz
to 20 kHz).
0-1
Hz from 20
Hz
to
3.25 kHz.
1 Hz
from 3.25
kHz to
20 kHz.
5
digits.
Keyboard entry. Step
change
variation
by
increment/decrement keys
and
rofery control.
iO.Ol
Hz from 50 Hz to
3.25
kHz.
±0A Hz from 3-25 kHz
to
15
kHz.
<2%
up to 15 kHz.
<-26
dBc
(at 9370
Hs
>20
Hz
only),
<0.2
mV
RMS
in
a
psophomeiric
bandwidth,
<100 mV
DC.
1 kHz.
As
internal standard.
<
1
%.
<0.4
mV
RMS
in
a
psophometric
bandwidth.
<100
mV
DC.
Two tones are
available.
1 kHz
and
the
AF
generator
frequency
setting,
both
at
the^sarne
level.
1 mV
to 2.55
V
up to 5
kHz.
1
mV
to 2
V
up to
15
kHz,
dz5% Azl
count
50
Hz
to
15
kHz.
1
mV
steps
from
1
mV
to 255
mV.
2,5 mV
steps
from 255
mV
to 635
mV.
10 mV
steps from
640
mV
to
2.55
V.
46aai-622N
Apr.
88