Marconi Instruments 2955 - Page 14

GENERAL INFORMATiON
AND
DAtTA
Aging
rate:
<d:l
part in lOVmonth.
<±1
part in 106/year
after 1
month’s
continuous use.
f'"
\
Shon-term
stability:
<±1 pan in 109, RMS
frequency error
over a
1 s
—
i^ricd
.
Retrace
error:
<±2
pans
in
10^
over
24 hours, at
constant tempera-
ture
and
after
25
minutes
warm-up.
External
frequency
standard
Range:
1
MFiz
±5
Hz.
Digital storage
oscilloscope
Genera!
Single or
repetitive
sweep.
Available in TX, RX
and audio test
modes,
calibrated
for AM, FM
and
<5>M. For
viewing
demodulated
audio (plus
external
input option).
Frequency
range:
DC
to 50 kHz
(from 3
Hz
on AC).
Voltage
range:
10
mV/div
to
20
V/div
in
1-2-5
sequence.
Accuracy:
±5%.
~
AM ranges:
20, 10,
5%/div at ±10%
accuracy.
FM ranges:
±30,
15.
6,
1.5
kHz
deviation at ±10%
accuracy.
ranges:
±15,
7.5,
3,
1.5
rad at ±10%
accuracy.
Sweep
rates:
100
LLS/div
to
5
s/div
in
1-2-5
sequence
accuracy
locked
to
internal
standard.
Trigger:
Repetitive,
or
single
shot
storage.
Other
features
Battery
option:
16
V.
capacity
7
.Ah.,
Normal
usage
life, 1.5
h.
-• - -
GPIB
option:
All
functions
e.xcept
the
supply
switch
and
analogue
controls
are
remotely
progr*ammabie.
Capabilities:
Comoiies
with the
following
subsets
as
defined
in IEEE
4S8-1978:
SHI,
.AHI, T5,
TEO,
L4,
LEO,
SRI.
RLl,
PPO.
DCl,
DTI,
CO,
El.
Selcali
decoder
and
encoder:
Decodes up
to
12 tones
and
encodes
up
to
11
tones
in a COR,
ZVEL
DZVEI.
EEA,
EIA
or
user-
defined tone
sequence.
1-14
46881-622N
Apr.
88