Boonton Electronic - 92B - Level Meter
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Equipment:
92B
Date:
1980
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Information
The Model 92 Series RF Millivoltmeter provides an accurate
readout of measurements from the low radio frequencies to
the gigahertz region, over a voltage range of 200 uV to 3 volts.
It is a programmable, solid-state instrument of high
sensitivity and accuracy, characterized by high input
impedance (see Figures 1 and 2), excellent stability, and
low noise.
The Model 92 exhibits true rms response for input signals up
to 30 millivolts, gradually approaching peak-to-peak above
this level. The meter, however, is calibrated to indicate
rms of a sine wave above 30 mV.
Input and output connections for external control and
readout are provided by a 22-pin card-edqe connector at the
rear of the instrument. ■
A linear dc output, whose level is proportional to the rf
input voltage, is also provided at a rear connector. This
may be used to drive a recorder, remote indicator, or other
analog
devices.
The 92 offers a convenient and accurate means for making a
wide variety of measurements. Typical uses of this
instrument include:
In transistor testing the instrument may be used to measure
6, f , and other transistor
parameter s.
SWR and return loss measurement using the Model 92 Series
with bridge methods, directional couplers, and adjustable or
slotted lines.
Gain and loss measurements in wide-band amplifiers,
including such design characteristics as stage gain,
flatness of the pass band, upper cut-off or corner
frequency, negative feedback factors, and other parameters.
Proper adjustment of tuned circuits in narrow-band amplifiers.
The adjustment, measurement of performance, and evaluation
of rf filter parameters.
Measurement of vswr or return loss and attenuation of rf
attenuators.
Measurement of output levels of signal generators,
adjustment of baluns, harmonic distortion of rf signals, and
adjustment of circuits for minimum voltage (null) or maximum
voltage (peak).
The Model 92 is available in several optional configurations
with a basic accuracy of 1% rdq. + 1% fs. The standard
features of the instrument are;
Remote programmability.
Measures from 200 yV to 3V* from 10 kHz to 1.2 GHz.
True rms response to 30 mV**.
Convenient pushbutton ranging.
DC analog output.
Hiqh input resistance, low input capacitance.
Overload protection to 400 Vdc and 10 Vac.
SWR less than 1.2 up to 1.2 GHz.
*To 30f) V, up to 700 MHz, with accessory 100:1 divider.
**To 3 V, up to 700 MHz, with accessory 100:1 divider.
The characteristics of the instrument include: high
reliability, fast warmup (1 minute typical), long intervals
between calibrations, plug-in PC boards for ease in
servicing or modifying, light weight, and other advantages
of solid state design.
Service and user manual
Manual type:
Service and user manual
Pages:
51
Size:
3.0 MB
Language:
english
Revision:
Manual-ID:
Date:
December 1980
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
Jan. 23, 2017
MD5:
fcced6b4-9bc4-930f-a7a9-dcc821ed4817
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