Model 5340A
Operation
Figure
3
-
3.
Front Panel Controls and Indicators (Continued)
7.
8.
9.
10.
11.
12.
13.
14,
15,
16
N
Type 500 Input Connector. Input for measurements in the 10 Hz to 18 GHz or
250
MHz to 18 GHz range
as
determined by the RANGE switch. Sensitivity
is
-
30
dBm from
10
Hz to
500
MHz,
-
35
dBm from
500
MHz to
10
GHz and
-
25
dBm from 10 GHz to 18 GHz.
RMT annunciator. For counters equipped with Option 011 only.
Lights when
the counter
is
in remote operation.
DIR annunciator. Lights when counter
is
in direct measurement mode. (10 Hz
to
250 MHz.)
*
annunciator. Operative with Option 001 only. Lights when the oven
is
heating
to indicate oscillator
is
not stabilized. Full counter accuracy
is
obtained when the
oven has stabilized. Twenty minutes after turn on, additional oscillator error
is
less than
5
parts in
lo9
at
25°C. If the line voltage
is
low, the
*
may remain lit for
longer periods of time.
NOTE
At
low environmental temperatures, e.g., O"C, the
*
annunciator may
remain on for longer periods of time. When the oven temperature
stabli-
izes, it may continue to
draw power in order to maintain operating
temperature.
OVFL annunciator. Indicates that one
or
more
of
the most significant digits
(digits left most from the decimal point) are not displayed. The digits that are
displayed will be accurate to within
*1
count
f
the time base accuracy. For
example, if 123,456,789
Hz
is
measured with
1
Hz RESOLUTION selected, the
OVFL annunciator will light, the
1
will not be displayed, and the numbers
23456789 will be displayed and are valid.
LOCK annunciator.
ment is being made with the transfer oscillator technique.
GATE annunciator.
measurement
is
in progress.
Indicates
that
phase LOCK has occurred and
a
measure
-
Indicates when the counter's main gate
is
open and
a
GHz, MHz kHz annunciators. Indicates the units multiplier of the measurement.
3
-
6