Bird 4421 Multifunction Power Meter

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Bird 4421 Multifunction Power Meter
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Bird 4421 Multifunction Power Meter Bird 4421 Multifunction Power Meter
Bird Technologies 4421
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Manual 4421 Datasheet Specifications Supplemental Document
The 4421 Multifunction Power Meter is a precision RF instrument that, while originally intended for general purpose laboratory applications where high accuracy is required, has found wide acceptance in semiconductor processing applications. The product is configured as a system, consisting of the 4421 and a precision power sensor selected for the application based upon maximum power and operating frequency.
Bird Technologies 4421 Features
  • ±1% Accuracy - Accomplished through the use of sensors with an automatic frequency compensation scheme, where the error contributions due to directional coupler frequency response characteristics are eliminated
  • Wide Dynamic Range - The instrument will meet the full accuracy specification over a 35 dB dynamic range
  • Excellent Measurement Repeatability - Typically <0.1%
  • Digital Display - Along with automatic VSWR calculation
  • Computer Interface - RS-232 and IEEE-488 standard
Bird Technologies 4421 Specs
Power Range 100 mW - 25 kW FS
Frequency Range 100 kHz - 1 GHz
VSWR Range 1.0 - 199.9
Functions Forward and reflected power in W or dBm, VSWR, return loss in dB and min./max. values
Over range Audible warning when RF power input exceeds 120% of sensor's maximum power range
Indication Display 3-1/2 digit-liquid crystal display with indicator for mode, measurement units, battery condition, programming status, and trend arrows. Switchable backlight
Operating Power 115/230 VAC, 50/60 Hz or 8 nickel cadmium 1.2 V cells (NEDA type 10014)
Nominal Size
L x W x H [inches (mm)]
12-9/32 x 12-5/32 x 4-1/4 (312 x 309 x 108 mm) with handle extended 15 7/16 L (392 mm)
Weight 11 lbs (5 kg.)
Interconnects 1 meter latch-n-lock coiled cable
Dimensions 4-1/2" x 6-1/2" (114 x 165 mm)