Atec Gigatronics-8003 - Manual (Page 2)

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8003 Precision Scalar Network Analyzer
1
Wide Dynamic Range
The Model 8003 Precision Scalar Network Analyzer can make
accurate, single sensor power measurements over a frequency
range of 10 MHz to 40 GHz with a dynamic range of –70 to +20
dBm.
This wide dynamic range results from our unique use of switched
linear gain stages, with a maximum gain of more than 100 dB,
rather than the log amplifiers typically used in other scalar
analyzers. In addition to wide dynamic range, our approach also
delivers extremely accurate low level measurements all the way
down to –70 dBm.
Power Meter Linearity
The Model 8003 also incorporates a unique, built-in power
sweep calibrator that linearizes the sensor’s diode response in
the non-square-law region, from –30 to +20 dBm. The calibration
system uses the inherent linearity and stability of an ovenized
thermistor to accurately calibrate the high-speed diode sensors
from 0°C to 50°C. The result is a linearity specification of ± 0.02
dB (0.5%) over any 20 dB span and ± 0.04 dB (1%) over the
entire 90 dB dynamic range to ensure accurate ratio or relative
measurements.
Absolute Power Measurements
The same built-in calibrator that linearizes the sensor provides a
1 mW signal accurate to within ±0.7%, stable over temperature
and time, and traceable to NIST. Each Giga tronics power sensor
contains an EEPROM programmed with the frequency calibration
factors measured at the factory, or in your Cal Lab. When you
key in the frequency at which power is being measured, the
meter automatically applies the correct calibration factor from
the sensor EEPROM.
The combination of an accurate, traceable calibration reference
and an accurate frequency response curve for each power
sensor ensures absolute power measurements with power
meter accuracy.
Power Sensors to meet your Application
Giga-tronics offers an extensive line of power sensors for
the Model 8003 to address a variety of power measurement
applications. This includes standard CW power sensors, low
VSWR CW power sensors, true RMS sensors, and our unique
triggerable pulse sensors.
The 80340 Series triggerable pulse sensors let you display
the response from a pulsed source. You can choose between
two modes of operation - measure with either a pulsed fixed
frequency (CW mode), or with a pulsed swept frequency (start/
stop mode) signal from a sweeper (swept signal generator). The
sensors can also be used to display the response of devices with
no pulse modulation on the signal generator.
The Model 8003 incorporates a unique, built-in power sweep
calibrator.
The 80340 Series triggerable pulse sensors let you display
the response from a pulsed source.