SECTION
I
GENERAL INFORMATION
1
-
1.
DESCRIPTION
1
-
2. The Hewlett
-
Packard Model 5340A Frequency Counter measures frequencies from 10 Hz to
18
GHz. Sensitivity
is
-30dBm
(7.07
mV) from 10 Hz to
500
MHz, -35dBm (3.98 mV) from
500
MHz to
10
GHz and -25dBm (12.6 mV) from 10 GHz
to
18
GHz. The counter makes direct
measurements from 10 Hz to 250
MHz and uses an automatic transfer oscillator technique for
frequencies above 250
MHz. Features include
a
single input connector for the entire frequency
range, excellent AM and FM characteristics, eight
-
digit display, auto
-
amplitude discrimination,
variable resolution from
1
Hz to
1
MHz, fast acquisition time, and wide dynamic range.
1
-
3. Electrical and mechanical specifications are listed in Table 1
-
3.
1
-
4.
INSTRUMENT IDENTIFICATION
1
-
5. Hewlett
-
Packard instruments have
a
2
-
section, 10
-
character serial number (OOOOAOOOOO),
located on the rear panel. The 4
-
digit serial prefix identifies instrument changes. The 5
-
digit
number
is
the serial number of each instrument. If the serial prefix of your instrument differs
from that listed on the title page of this manual, there are differences between this manual and
your instrument.
1
-
6. For lower serial prefixes it will be necessary to backdate this manual to conform with your
instrument. Refer to Section VII for
a
listing
of
the changes needed.
’/
J
1
-
7.
For higher serial prefix 5340A’s, changes were made after this manual was published and
it
will be necessary to change this manual to conform with your instrument. A manual change
sheet
is
included with this manual.
If
the change sheet
is
missing, contact your local Hewlett-
Packard office.
1
-
8.
APPLICATIONS
1
-
9.
Since one input connector accepts all signals from 10 Hz to 18 GHz, the 5340A
is
particularly
adaptable to automatic systems and high speed production testing. The high sensitivity is
extremely useful
in
microwave measurements where signal levels are typically below the
sensitivity of most counters. When the 5340A
is
equipped with Option 011, all front panel
functions can be remotely programmed. In addition, the remote programming option allows for
digital outputing and programming of the octave ranges of the internal phase lock loops. Octave
range selection allows for measurements in a single frequency band to reduce the acquisition
time to typically less than 25 milliseconds. Other options include rear panel input connectors
Option 002, and high
-
stability time base Option 001.
Model
5340A
General Information
I
1-10.
OPTIONS
1
-
11.
The
5340A can be ordered with the following options: Option
001,
high
-
stability time base;
Option 002, rear panel input connectors; and Option 011 remote programming and digital output.
Table
1
-
3
lists the specifications for the options; Section VII describes field installation and gives
an overall description of
each’poption. Section I1 covers programming for Option 011.
1
‘I
1
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12.
EQUIPMENT SUPPLIED AND ACCESSORIES AVAILABLE
‘..-I
I
1
-
13. Table
1
-
1
lists equipment supplied and Table
1
-
2
lists accessories available.
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1
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