Manual

SOPHISTICATED SIGNAL
PROCESSING FOR FAST,
AUTOMATIC MEASUREMENTS
Both the Models 4400A and 4500A
have a dedicated floating point digital
signal processor that performs shaping,
filtering, calibration, offset compensation,
and conversion of the test signal. Random
repetitive sampling and selectable
averaging provide accurate, stable
measurements of all user-programmed
waveform parameters. Digital signal
processing permits pre-trigger information.
Logarithmic detection provides the best
dynamic range of 60 dB (-40 to +20 dBm)
for peak power measurments.
Measurements are fast…two marker
values and their delta are available 80
times per second over the bus, and all 14
automatic measurements are available 20
times per second.
SETUP & WAVEFORM
STORAGE
Up to 10 complete panel setups can be
stored and recalled from internal memory
for applications in which the same
instrument setups are used repetitively.
For permanent hard-copy documentation,
complete display data can be transmitted
to a plotter or printer via an RS-232 serial,
IEEE-488 port, or LPT port, supporting
LaserJet, ThinkJet, and HPGL formats.
COLOR DISPLAY
The display is a VGA-compatible
seven-inch diagonal color CRT with a
resolution of 640 x 480 pixels. Waveforms
are displayed at 501 x 281 resolution.
PEAK POWER SENSORS TO
MATCH YOUR APPLICATION
Boonton Electronics offers a wide
selection of sensors that are optimized for
different characteristics such as frequency,
risetime, and dynamic range.
All sensors feature a balanced diode
configuration for high sensitivity and eve-
order harmonic suppression. Low VSWR
minimizes mismatch errors. Calibration
factors traceable to NIST standards are
stored in EEPROM, and an internal
temperature sensor tracks temperature
change. Calibration factor information and
other sensor data are automatically
downloaded to the instrument when the
sensor is connected.
PRECISION 1-GHz
CALIBRATION FOR
PERFORMANCE VERIFICATION
A spectrally pure, 1-GHz NIST
traceable calibrator guarantees
measurement reliability. The user-
selectable automatic routine calibrates the
sensor and instrument over the full
dynamic range of the instrument. An
output of –40 to +20 dBm (CW or pulsed)
makes this a versatile source.
DISK DRIVE
The display is a VGA-compatible
seven-inch diagonal color CRT with a
resolution of 640 x 480 pixels. Waveforms
are displayed at 501 x 281 resolution.
BOONTON ELECTRONICS (A Wireless Telecom Group Company)
P.O. Box 465, Parsippany, New Jersey 07054-0465 · Tel: [phone] · Fax: [phone] · E-mail: [e-mail] · Website: www.boonton.com
Sensor Inputs
Frequency Range 30 MHz to 40 GHz, selectable
1
Pulse Measurement Rage -40 to +20 dB
1
CW Measurement Range -50 to +20 dB
1
Risetime (10 – 90%) See sensor specifications
Single-Shot Bandwidth 100 kHz (based on 10
samples per pulse)
Pulse Repetition Rate 25 MHz
Minimum Pulse Width 30 ns
Vertical Scale
Relative Offset Range
Log +99.99 dB
Linear 0 to 99 divisions
Vertical Scale
Log 0.1-20 dB/div in 1-2-5 sequence
2
Linear 1 nW -50 MW in 1-2-5 sequence
2
Time Base Pulse Mode
Time Base Range 10 ns to 1 s/div
Time Base Accuracy 0.01%
Time Base Resolution 200 ps
Statistical Mode (Model 4500A only)
X-Axis 0.1, 0.2, 0.5, 1, 2, 5, 10% pe
r
division
Percent Offset Range 0 – 99% (x-axis dependent)
Percent Resolution 0.002%
Trigger Pulse Mode Only
Trigger Source Channel 1 internal or external; or
Channel 2 internal or external
5
Trigger Slope + or –
Pre-Trigger Delay:
Time Base Setting Delay Range
10 ns to 50 ms -500 ms
100 ms to 1 sec -10 div
Post-Trigger Delay:
Time Base Setting Delay Range
10 ns to 1 ms 10,000 div
2 ms to 50 ms2 ms
100 ms to 1 sec 200 div
Trigger Delay Resolution 0.02 divisions
Trigger Holdoff Range 65 ms
Trigger Holdoff Resolution 62.5 ns
Trigger View
Vertical Scale 0.1V to 1V in 1-2-5 sequence
Relative Offset +3 volts
Internal Trigger Range -27 to +20 dBm
1
External Trigger Range +3 volts
External Trigger Input 50 ohms, dc coupled
Statistical Pricessing (Model 4500A only)
CDF, 1-CDF, PDF Modes
Sampling Rate 500,000 samples per second
Number of Sampling Bins 4,096
Size of Sample Bins 32 bits
Bin Power Resolution <0.02 dB
1
Percent Resolution CDF, 1-CDF in log or linear
scales and plots normalized
to average power PDF log
or linear scales and plots
normalized to average
power
Automatic Measurements Peak max. power, average
power, peak to average
ratio, minimum power, total
samples, sampling time,
confidence band of
measurements, dynamic
range, and tolerance
Calibration Source
Operating Modes CW, internal or external pulse
Frequency 1.024 GHz + 0.1%
Level Range -40.0 to +20.0 dBm
Resolution 0.1 dB
Output SWR (Refl. Coeff.) 1.20, (0.091)
3
Accuracy (NIST traceable)
4
(-30 to +20 dBm)
Absolute +0.065 (1.5%) at 0 dB and
25
O
C, +0.001 dB per
O
C
Linearity +0.03 dB per 5 dB
Internal Pulse Period 100 ms, 1 ms or 10 ms
Internal Pulse Duty Cycle 10% to 90% in 10% increments
Internal/External
Pulse Polarity + or –
Connector Type N
Power Measurement Accuracy
Measurement Uncertainty Total measurement
uncertainty (worst case) is
the sum of the calibrator
uncertainty, source
mismatch error, sensor
calibration factor
uncertainty, sensor
temperature coefficient,
sensor shaping, noise and
drift.
Mismatch Uncertainty +2 x sensor reflection
coefficient x source
reflection coefficient x 100%
M
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