Boonton 9240 RF Voltmeter - Manual (Page 17)

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 1
( 1 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 2 , dBµW,
dBnW, dBr, %
( 2
0dBm = 1mW calculated from V 2 /Z
o
where Z
o
is the selected reference impedance)
Z
o
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