Boonton 9240 RF Voltmeter Manual de usuario descargar pdf (Pagina 17)

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Boonton 9240 Series RF Voltmeter

1.6 Specifications

Performance specifications for the 9240 Series are listed in Table 1-2.

Table 1-2 9240 Series Performance Specifications

(Specifications are subject to change without notice)

VOLTAGE PROBE INPUTS

Frequency Range: 10 Hz to 1.2 GHz

(

Voltage Probe dependant )

Voltage Range: 200 µV to 10V

Dynamic Range: 90 dB

Waveform response: RMS to 30mV, calibrated in RMS of a sinewave above 30mV

(RMS to 10V and 700MHz with 100:1 divider)

Crest Factor: Direct Input: Level 300uV 1mV 3mV 10mV 30mV

CF 140 42 14 4.2 1.4

With Divider: Level 30mV 100mV 300mV 1V 3V

CF 140 42 14 4.2 1.4

Input Impedance: Refer to Figure 1-2

Maximum AC Input: 10V

Maximum DC Input: 200V

FEATURES

Display: Menu-driven 20 character x 4 line LCD

Display Units: VOLTS, dBV, dBmV, dBµV, dBnV, WATTS, dBW, dBm

, dBµW,

dBnW, dBr, %

(

0dBm = 1mW calculated from V

where Z

is the selected reference impedance)

Impedance: Any selected reference value from 5 to 2500 Ω

Peak Display: 1.414 times Voltage display or 3.01 dB added to dB display

Display Resolution: 0.001 dB or 5 digits (in Volts mode)

Display Offset: -99.99 dB to +99.99 dB in 0.01 dB steps

Limiting: Individual high and low limit thresholds, -99.99 dB to +99.99 dB

Ranging: Manual (8 ranges) or autoranging

Filtering: Filter times to 20.00 seconds in 0.05 second increments

Zeroing: Automatic function; calculates, stores, and applies zero corrections to

each range

Reference Level: -99.99 dB to +99.99 dB in 0.01 dB steps for dBr measurements

may be express in % in linear mode.

Recorder Ouput: For linear voltage readout, 10V full scale proportional to indicated

voltage over each decade. Ranging occurs at 10% of full scale. For

decibel readouts, scale factor is 1V per 10dB change over the entire

dynamic range.

General Information

1-7

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Boonton 9240 RF Voltmeter Manual de usuario Pagina 17

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