BIRD 4330/ 31 Owner's manual

INSTRUCTION BOOK FOR

RF DIRECTIONAL

THRULINE

®

WATTMETER

MODEL 43

Also Covers Models

4305, 4330, 4431, 4521-27, and 43P

Instruction Book Part Number 920-43 Revision. C

Thruline® and Termaline® are registered trademarks of

Bird Electronic Corporation

Electronic Corporation

Cleveland (Solon) Ohio USA

Safety Precautions

Keep Away From Live Circuits

Do Not Service Or Adjust Alone

Safety Earth Ground

Shock Hazard

Resuscitation

Safety Symbols

Warning Statements

Bird Model 43 Wattmeter

Caution Statement

Safety Statements

É

Ú É

Bird Model 43 Wattmeter

About This Manual

Operation

Maintenance

43 43P 4305A 4331

4431 4521 4522 4523

4525 4526 4527

Parts

Changes To The Manual

We have made every effort to ensure this manual is accurate. If you

should discover any errors or if you have suggestions for improving

this manual, please send your comments to our factory. This manual

may be periodically updated. When inquiring about updates to this

manual, refer to the part number and revision level on the title page.

Bird Model 43 Wattmeter

Table of Contents

Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . i

WarningStatements. .....................ii

Caution Statement. . . . . . . . . . . . . . . . . . . . . . iii

Safety Statements. . . . . . . . . . . . . . . . . . . . . . iii

About This Manual. . . . . . . . . . . . . . . . . . . . . . vii

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Purpose and Function. . . . . . . . . . . . . . . . . . . . . 1

Performance Characteristics and Capabilities. . . . . . . . . 1

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . 4

Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . 7

Travelling Wave Viewpoint. . . . . . . . . . . . . . . . . . . 7

Coupling Circuit. . . . . . . . . . . . . . . . . . . . . . . . . 7

Standing Wave Ratio vs Reflected/Forward Power Ratio. . 9

Load Power. . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Measurement And Monitoring of Transmitter Power. . . . 14

Testing of Lines, Connectors, Filters, Etc.. . . . . . . . . . 14

FrequencyResponse.....................16

ImpedanceMismatch.....................17

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Portability. . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Connections. . . . . . . . . . . . . . . . . . . . . . . . . . 19

Remote Installation. . . . . . . . . . . . . . . . . . . . . . 20

Operating Instructions. . . . . . . . . . . . . . . . . . . . 23

Zero Adjust. . . . . . . . . . . . . . . . . . . . . . . . . . 23

General. ...........................24

NormalOperation.......................25

Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . 31

Troubleshooting........................31

Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Preventive Maintenance. . . . . . . . . . . . . . . . . . . 33

Line Section Care. . . . . . . . . . . . . . . . . . . . . . . 33

Contact Adjustment. . . . . . . . . . . . . . . . . . . . . . 33

Calibration Checks - Thruline Wattmeter vs

TermalineWattmeters. ...................34

Model 43 Replacement Parts List. . . . . . . . . . . . . . . . . . . 35

Model 4431 Thruline Wattmeter. . . . . . . . . . . . . . . . . . . . 38

Theory of Operation. . . . . . . . . . . . . . . . . . . . . 38

Operation. ..........................40

Maintenance..........................40

Model 4431 Replacement Parts List. . . . . . . . . . . . . 41

Series 4520 Thruline Wattmeters. . . . . . . . . . . . . . . . . . . 42

Installation...........................42

Theory of Operation, Operating Instructions and Mainte-

nance Sections. . . . . . . . . . . . . . . . . . . . . . . . 43

Series 4520 Replacement Parts List. . . . . . . . . . . . 43

Model 4305A Thruline Wattmeter. . . . . . . . . . . . . . . . . . . 44

Bird Model 43 Wattmeter

Model 4305A Replacement Parts List. . . . . . . . . . . . 45

Model 4330 Thruline Wattmeter. . . . . . . . . . . . . . . 45

Model 4330/31 Replacement Parts List. . . . . . . . . . . 46

Model 43P Peak Wattmeter. . . . . . . . . . . . . . . . . . . . . . 46

Model 43P Specifications. . . . . . . . . . . . . . . . . . . 47

Operation. ..........................47

Peak Detector Response. . . . . . . . . . . . . . . . . . . 47

Model 43P Peak Calibration. . . . . . . . . . . . . . . . . 48

Maintenance..........................49

Customer Service. . . . . . . . . . . . . . . . . . . . . . . 50

Bird Model 43 Wattmeter

Chapter 1

Introduction

Purpose and Function

Performance Characteristics and Capabilities

Bird Model 43 Wattmeter

Raised Stop Edge

Stop Pin

Figure 1

Stop Pin

S

top Pin

Co

nt

ac

t

Figure 2

Stop pin and

contact

Introduction

Specifications

Impedance, Nominal (All Models) 50 ohms

Insertion VSWR

All models except 4431

4431

Less than 1.05:1 maximum

1.07 (when coupling is less than

30dB)

Connectors

RF Sampling (if applicable)

Primary Line

Female BNC

Bird “QC” Female N normally supplied

Power and Frequency Range

Models: 43, 43P, 4521/22/23/25/26

Model 4527

Model 4431

Model 4305

Model 4330

100mW-10kW Frequency range from

0.45 to 2700 MHz (depending on

element).

1000W maximum 2-200MHz

500W maximum from 200-512MHz

5000W maximum from 2-30MHz

1000W maximum from 30-1000MHz

(applicable only when coupling is

less than 30dB).

25kW Maximum from 0.45-2.5 MHz,

10kW from 2-30 MHz.

5000 W Maximum from 2-30 MHz.

1000 W Maximum from 30-1000 MHz

(applicable only when coupling is

less than 30 dB).

Bird Model 43 Wattmeter

Accuracy (All Models CW)

(Model 43P, Peak Power)

± 5% of full scale.

± 8% of full scale.

Dimensions, Nominal

Models 43

Model 4431

Model 4305A

Models 4521/22/23/25/26/27

3-5/8"L x 4"W x 6-7/8"H

(92.1 x 101.6 x 174.6 mm)

3-27/32"L x 4"W x 6-7/8"H

(97.6 x 101.6 x 174.6 mm)

4-5/32"L x 3-27/32"W x 6-53/64"H

(105.6 x 98 x 173 mm)

19" W x 5-7/32" H x 1-11/16" D

(483 x 133 x 43mm)

Weight, Nominal

Model 43

Model 43P

Model 4431

Model 4305A

3 lb. (1.36 kg)

4 lb. (1.8 kg)

3-1/2 lb. (1.59 kg)

3-1/4 lb. (1.47 kg)

Operating Position Any

Finish (All Models) Grey Powder Coat

RF Coupling

Model 4527

Model 4431

Approx. -53 dB from 512 MHz down

to 10 MHz decreasing to -70 dB

between 10 and 2 MHz.

Adjustable, 15-70 dB

Insertion Loss (Model 4431)

2-512 MHz.

512-1000 MHz

0.1dB Maximum

0.2dB Maximum*

Introduction

1-5/16"

(33.3mm)

3-3/8"

3-5/8"

(92.1mm)

(85.7mm)

6-7/8"

(174.6mm)

4"

(101.6mm)

1-3/4"

(44.5mm)

Female "N" Q.C.

Connectors (2)

(Normally

Supplied)

Socket for

Extra Element

Model 43 Outline Drawing

Bird Model 43 Wattmeter

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BIRD 4330/ 31 Owner's manual

BIRD 4330/ 31 Owner's manual

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