Gate Time - Racal Instruments 2151 Manual

GATE TIME
33
For
INPUTs
A
and
B, Gate
Time
is
related
to
tlie
resolution
selected, as
shown
in
TABLE
4.1a.
TABLE
4.1a
Gate
Times
for
FREQUENCIES
A
and
B
Number
of
digits
in
FREQ
A,
FREQ
B &
CHECK
Gate Time
Resolution
Number
10
20
s
10
9
1
5
9
8
100
ms
8
7
10
ms
7
6
1
ms
6
5
1
ms
5
4
1
ms
4
3
1
ms
3
For
INPUT
C,
Gate Time
is
related
to
both
the resolution selected
and
the input frequency,
as
shown
in
TABLE
4.1b.
TABLE
4.1b
Gate Times
for
FREQUENCY
C
Frequency
GHz
1
Hz
Resolution
10
Hz
100 Hz
1
kHz
0.5- 1.0
100
ms
10
ms
1
ms
1
ms
1.0- 4.0
200
ms
20
ms
2
ms
1
ms
4.0- 8.0 400
ms
40
ms
4
ms
1
ms
8.0-12.0 600
ms
60
ms
6
ms
1
ms
12.0-16.0 800
ms
80 ms
,
8
ms
1
ms
16.0-20.0
1
s
100
ms
10
ms
1
ms
2151
OPS
Al
571/DA
4-9