Marconi Instruments 2955 - Page 9

GENERAL
INFORMATION
AND
DATA
Frequency
Range:
Resolution:
RF
counter
section
1.5
to
1000
MHz.
1 Hz
or
10
Hz
to
200
MHz.
10
Hz
from
200
MHz
to
1000
MHz.
Accuracy:
input
Impedance:
As
internal
standard
±1
digit.
50 n
nominal
VSWR:
Sensitivity:
‘
Update
time:
N
socket:
<1.2:1
to
500
MHz.
<1.35:1
to
1000
MHz.
BNC
socket;
<2.2:1
to
1000
MHz
typical.
N
socket:
BNC
socket;
5
mW
(0.5
V),
TX
mode
selected.
20 mW
(1
V),
one/two
port
duplex.
0.05 mW
(50
mV).
100
ms
for
frequencies
up
to
200
MHz with
10
Hz
resolution.
1
s
with
I
Hz
resolution.
400
ms
for
frequencies
up
to
1000
MHz
with
10
Hz
resolution
only.
Input
Impedance;
VSWR;
Reading
ranges:
Continuous
rating;
RF
power
meter
section
As
RF
counter
section.
As
RF
counter
section.
N
socket:
TX mode
One-pon
duplex
Two-port
duplex
BNC
socket:
50
mW
to
150'
W.
usable
down
to
5
mW.
100
mW
to 150
W,.
usable
dowm to
20
mW.
'
50
mW
to 100
W,
usable
down
to 5
mW.
0.05 mW to 1.0
W.
T5
W
at
0
to
50
'’C.
46331
-522N
Apr,
38
1-9