Equipment information
Boonton Electronic 4400A Analyzer
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Model:
4400A
Date:
1997
Category:
Group:
Description:
RF PEAK POWER METER
Information
The Model 4500A RF Peak Power Meter Analyzer and the Model
4400A Peak
Power Meter are new generation RF power meters. These
instruments, when
operated with 56000 series power sensors, comprise the most
versatile power
measuring systems available, with capability to make over 25
different
measurements on captured signals. The instruments can
measure the peak and
average power of signals in the frequency range of 30 MHz to
40 GHz with a
dynamic range of over 60 dB.
The two models provide performance which previously required
multiple
instruments, and they provide that performance faster, with
increased accuracy;
while adding functionality not previously available. The
speed is visible during
the screen update process, waveform response rate and the
IEEE-488
performance. The Model 4400A and Model 4500A are the fastest
power meters
available with the ability to talk two marker measurements
over eighty times a
second.
The Model 4400A has two measurement modes - pulse power and
CW power.
The Model 4500A adds to these a third mode - statistical
power. Each mode is
targeted towards a specific type of measurement.
In the pulse power mode the instrument functions as an
enhanced peak power
meter. It can be configured as a single or dual channel
instrument. This mode
provides the functionality of an random repetitive sampling
Oscilloscope for
viewing the RF envelope of signals in the frequency range of
30 MHz to 40
GHz. Its accuracy approaches that of average power meters,
but with the ability
to capture power versus time data. With the requirement of
an internal or
external trigger event it can automatically measure up to 14
characteristics of
the RF envelope. These are peak power, average power, pulse
width, risetime,
falltime, overshoot, pulse period, pulse repetition rate,
duty cycle, top
amplitude, bottom amplitude, offtime, and the delay between
two RF pulses or
an RF pulse with an external trigger signal. In addition to
the automatic
measurements, the instrument offers a powerful set of marker
measurements
which includes the ability to make marker measurements at
full accuracy,
independent of vertical scale or offset. This is possible
because of the use of
logarithmic amplifiers, and a 12 bit analog to digital
converter, which provide
rangeless operation. In addition, the markers can be used to
define regions of
the waveform for analysis. This analysis includes average
power of a portion of
the waveform, minimum power, and maximum power.
In the CW mode the instrument’s low end performance is
improved by
approximately 10 dB, which provides a signal measurement
range of up to 70
dB (-50 to +20 dBm). This is accomplished by automatically
limiting the input
bandwidth of the instrument and using a second, low
bandwidth internal
measurement channel.
In the statistical mode the Model 4500A offers many new
features. This mode
does not require a trigger event to make measurements like
the pulse power
mode. The instrument continuously samples the RF signal at
approximately half
a million samples per second, without discarding or losing
any data. All of this
data can be processed statistically to determine peak power,
average power,
minimum power, peak to average power ratio, and dynamic
range, while
reporting the sampling time, total samples captured and the
statistical tolerance
of the data. In addition, this data can be displayed using
three different
graphical representations. These are probability density
function (PDF),
cumulative distribution function (CDF), and one minus
cumulative distribution
function (1-CDF). This mode is very useful in applications
where the signal is
random in nature; such as digital communication and multiple
carrier systems.
Software Programmable A dedicated microprocessor performs
random repetitive sampling, shaping,
filtering, calibration, offset compensation, and conversion
of the RF signal. The
control Software is stored in EEPROM and is updated, as
necessary, by loading
upgrade Software from a standard DOS 3.5" diskette. Software
can be loaded in
the field by inserting the diskette in the front panel disk
drive and turning the
instrument on. There is no need to remove the cover or
change parts.
Auto-Setup The instrument will automatically select a
vertical scale, vertical offset,
timebase, holdoff and trigger level to display at least one
pulse period at full
amplitude of the full waveform.
Menu-Driven Operation Setup and control of the instrument is
menu-driven to simplify operation.
User-selected parameters appear in a menu to the right of
the waveform,
together with applicable variables. Selections are arranged
opposite adjacent
“softkeys” that select parameters and activate data entry
controls. Required
numerical values are entered through the keypad, arrow keys
or spin knob.
Help Displays Context-sensitive HELP screens are accessible
at the touch of a key
for all function menus. The HELP information guides the user
step-by-step to assure accurate instrument setup.
High-Resolution Color Waveforms, control menus, measurement
values and related text
Display are displayed on a 7-inch diagonal, 640 x 480 pixel,
VGA color CRT.
Display element colors are user-selectable to maximize clarity.
Dual Independent When equipped with the optional second
measurement channel, the
Channels instrument can display two pulsed signals or a
pulsed signal on
one channel and a trigger waveform on the other. Each channel is
calibrated and all channel parameters are channel-independent.
Balanced Diode The balanced diode sensor configuration
provides high sensitivity and
Sensors even-order harmonic suppression. Low VSWR minimizes
mismatch
errors. Frequency Calibration factors traceable to NIST
standards are stored
in on-board EEPROMs and downloaded to the instrument. A
thermistor
in each sensor tracks temperature variations.
Waveform Persistence The waveform display can be placed in
the infinite persistence mode.
Built-In Precision A 1 GHz calibrator, traceable to NIST,
enhances measurement relia-
Calibrator bility. The user-selectable automatic calibration
routine calibrates
the sensor and instrument in steps over the full dynamic range.
Adjustable Averaging Random repetitive sampling and
averaging with an exponential Filter
(performed on each point of the waveform) reduce noise
contribution
and provide accurate, stable measurements. The number of
repetitions
to be averaged can be adjusted to the smallest value that
achieves the desired noise suppression, thereby avoiding
excessive
averaging delays.
Automatic Waveform The instrument can measure fourteen pulse
parameters related to power,
Analysis time and/or frequency. All programmed measurements
are made automatically
and displayed in text mode. Measurement information is
available directly,
eliminating the need for interpretation by the user.
Single-Shot The 1 MHz sampling rate yields a 100 kHz
single-shot bandwidth
Measurements (10 samples per pulse) for capturing and
analyzing infrequent events.
Disk Drive The disk drive uses a 1.44MB DOS compatible 3.5
inch diskette. The instrument
can store its setup configuration, reference waveforms,
screen printouts, or
screen plots to the disk. The instrument setups are stored
as ASCII files that use
the IEEE-488 bus commands. The waveform can be recalled into
a reference
channel and used for channel math or marker measurements.
The print or plot
files can be read by a PC and output to a device connected
to the computer.
Hard Copy Output A permanent copy of the instrument’s screen
can be spooled to a plotter
or printer. The output can be sent to the serial, parallel
or IEEE-488 ports or
to disk.
Self-Test and An automatic self-diagnostic routine can be
initiated at any time to
Diagnostics isolate and identify a faulty module. Error
reports direct the user
to the instrument module or sensor that requires replacement.
IEEE-488 Bus Control All instrument functions except power
on/off can be controlled
remotely via the parallel IEEE-488 bus Interface. Setup of
interface
parameters is menu driven; front panel indicators keep the user
informed of bus activity.
Stored Configurations For applications in which the same
instrument configurations are used repetitively,
up to ten complete setups can be stored and recalled at the
touch of a key.
Manual Type:
User Manual
Pages:
265
Size:
3.24 Mbytes (3399526 Bytes)
Language:
english
Revision:
Manual-ID:
P/N 98404700A
Date:
1997 09 01
Quality:
Electronic document, no scan, very well readable.
Upload date:
2017 01 22
MD5:
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Downloads:
1186
Information
The manual is organized into seven sections and three
Appendices, as follows:
Section 1 - General Information presents summary
descriptions of the
instrument and its principal features, Accessories and
options. Also included are
specifications for the instrument and the 56000 Series sensors.
Section 2 - Installation provides instructions for unpacking
the instrument,
setting it up for operation, connecting power and signal
cables, and initial
power-up.
Section 3 - Getting Started describes the controls and
indicators and the
initialization of operating parameters. Several practice
exercises are provided to
familiarize you with essential setup and control procedures.
Section 4 - Operation describes the display menus and
procedures for operating
the instrument locally from the front panel.
Section 5 - Remote Operation explains the command set and
procedures for
operating the instrument remotely over an IEEE-488 bus.
Section 6 - Application Notes describes automatic
measurement procedures and
presents an analysis of measurment accuracy. Definitions are
provided for key
terms used in this manual and on the screen displays.
Section 7 - Maintenance includes procedures for installing
Software and
verifying fault-free operation.
Appendix A - Error Messages defines the messages that are
displayed when
errors occur.
Appendix B - Plotter Operation describes how to record the Model
4400A/4500A output on a plotter or printer.
Appendix C - Warranty and Repair Policy states the policies
governing the
return and replacement of modules and instruments during and
after the
warranty period.
Appendix D - Sensor Performance Specifications
Appendix E - End User License Agreement