5730A
Operators Manual
1-6
Wideband AC Voltage Module (Option 5730A/03 or
5730A/05)
The Wideband AC Voltage Module (Option 5730A/03 or 5730A/05) can be installed in
the 5730A Calibrator. The module is a high-accuracy, low-noise, extremely flat ac
voltage source to calibrate RF voltmeters, with a frequency range of 10 Hz to 30 MHz
(5730A/03) or 50 MHz (5730A/05). Output is in seven ranges from 300 μV (-57 dBm) to
3.5 V (+24 dBm) through a Type-N coaxial connector into a 50 Ω load. The output level
is selected in volts or dBm through either the front panel controls or under remote
control.
The wideband module also functions with the Calibrator output adjust controls that
display the error of a wideband meter in either percentage of output or in decibels.
Included with the wideband module is a Type-N output cable, a 50 Ω terminator, an N(f)
to BNC(m) adapter, and a BNC(f) to double banana plug adapter. The wideband module
is calibrated to the end of its standard-equipment output cable.
Auxiliary Amplifiers
The Fluke Calibration Model 5725A and 52120A amplifiers are available to extend the
high voltage performance and current range of the 5730A Calibrator.
Interface connectors on the Calibrator rear panel accept cables to directly operate a
5725A and/or 52120A. Multiple amplifiers can be connected to the Calibrator at the same
time, but only one output can be active at a time. Once the amplifiers are connected and
configured in the Product Setup Menu, amplifier operation is controlled by the Calibrator.
A maximum of three 52120As can be connected to provide a maximum of 360 A rms ac
or 300 A dc current when their outputs are connected in parallel.
See Chapter 4 for instructions to operate both amplifiers. The general specifications at the
end of this chapter include specifications to operate the 5730A Calibrator with both
amplifiers. For other amplifier specifications, refer to their instruction manuals. Table 1-2
summarizes the extended capabilities offered by the 5725A and 52120A. Brief
descriptions of the extended capabilities follow.
Table 1-2. Auxiliary Amplifier Data
Model Mode Range
5725A Amplifier
AC Volts
20 V rms to 1100 V rms up to 70 mA, 40 Hz to
30 kHz (50 mA < 5 kHz)
220 V rms to 750 V rms up to 70 mA, 30 kHz to
100 kHz
DC Amps 0 A to ±11 A
AC Amps 1 A rms to 11 A rms, 40 Hz to 10 kHz
52120A
Transconductance
Amplifier
[1]
DC Amps 0 A to ±100 A
AC Amps 0.2 A rms to 120 A rms, 10 Hz to 10 kHz
[1] Up to three 52120As may be connected, providing a total current of up to 300 A dc or 360 A rms.
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