Bird Technologies 8890-400 Series Manuale d'uso

Pagina 13

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Specifications

Impedance

50 ohms

VSWR

1.15 - 1.00 dc to 1000 MHz

Connectors
Model 8891-400A, 8891-420B
Model 8897-400A

3-1/8” EIA flanged
3-1/8” unflanged
(Flush Center Conductor)

Power Rating*†
Models 8891-400A, 8897-400A
All other models

2500 W continuous duty
5000 W continuous duty

Frequency Range*

2 to 1000 MHz

Accuracy

± 8% of full scale

Ambient Temperature
Storage

Operating

+10°C to +40°C
(+50°F to 104°F)

+25°C ± 5°C
(77°F ± 9°F)

Cooling Method

Liquid dielectric and convection
currents**

Overall Dimensions

17-3/16” H x 7-1/8” W
(437 x 181 mm)

Length
Flanged Units
Unflanged Units

25-1/8” (638 mm)
24-5/32” (613.6 mm)

Meter Dimensions

4-11/64”L x 5-9/16”W x 6-1/2”H
(106 x 141 x 165 mm)

Meter Weight

5 lb (2.27 kg)

Finish
Load and Meter Housing
RF Section

Grey Powder Coat
Bright Silver Plate

*Actual frequency and power ratings are determined by the element used.
†Power Rating with blower assembly installed:
Blower running - 5000 W
Blower not running - 1250 W

**Assisted by forced draft when blowing assembly is installed and running.

3

Introduction

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