Boonton 9240 RF Voltmeter Manual de usuario descargar pdf (Pagina 36)

100

Boonton 9240 Series RF Voltmeter

Table 3-2 CHANNEL MENU Functions

Function Description Parameters Defaults

RTN Returns the instrument to the n/a

previous menu.

UNITS Units used for measurement dBm, WATTS dBm

display.

RES Display resolution X.X, X.XX, X.XXX dBm or/ X.XX

XXX, XXXX, XXXXX Watts

BAR Enables the bar graph on the ON, OFF ON

measurement display.

MODE Sets the display mode for CH2,CH1+2, CH1/2 CH2

channel 2; only available when OFF

two channels are installed. The

units for sum and ratio modes

track the units selected for

channel 2.

RANGE Selects and hols the instrument’s AUTO, 0,1,2,3,4,5,7 AUTO

measurement range. If

repetitive measurements are to

be made over a narrow range of

levels, selecting the appropriate

instrument range may speed

measurements.

ALARM Enables alarm mode; the ∨ or ON, OFF OFF

∧ symbol is displayed before

the channel mode designator on

the measurement display to

indicate when the upper or

lower threshold limit is

Exceeded.

HI LIMIT Upper threshold limit for the -99.99 to 99.99 99.99

alarm function.

LO LIMIT Lower threshold limit for the -99.99 to 99.99 -99.99

alarm function.

ZØ Characteristic impedance used to 5 to 2500 Ohms 50 Ohms

calculate power.

PEAK Displays sinewave peak instead of ON, OFF OFF

RMS.

Equal to a factor of 1.414 or +3dB.

X100 Used with 100:1 divider accessory ON, OFF OFF

Getting Started

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Boonton 9240 RF Voltmeter Manual de usuario Pagina 36

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