RCA BPA-10 Installation, Operation & Maintenance Instructions Manual

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ANTENNA

TUNING

UNIT

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Type

BPA-10

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INSTALLATION-OP~RATION-MAINTENANCE

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Printed

in

U.

S.

A.

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INSTRUCTIONS

1B-30168-3-21-46

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Title

Technical Summary

Electrical Characteristics
Tube Complement . .
Mechanical Specifications

Description

Installation

Tuning

......................................•.....................••...................

Purpose

Construction .....

Circuit

Mounting
R-F

Connecfions

Remote Metering and
Static Drain
Tower Lighting,

............

General Considerations ........

Tuning Procedure with
Tuning Procedure without

Final Check
Remote Metering Equipment

.........

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.. ~ .....................................................................

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TABLE

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Audio

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R-F

Bridge
R-F

....•....

Monitoring

.......

Bridge ...................

...........•.••................................................

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...........•..•

.............•..

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OF

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CONTENTS

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Maintenance

Parts

List

.........

Figure

1-Type
2-Simplified
3-Coupling
4-Antenna
5-Antenna
6-Antenna

2

BPA-10 Antenna Tuning Unit (Exterior View)

................•........••••...•.

..........................•..•.•...........•.........

Circuit Diagram (K-861732)

Circuit and Tuning Unit
Tuning Unit (Interior View)
Tunin·g Unit (S;hematic M-428316)
Tuning Unit (Outline M-428610)

........... , ...............................•..........

Network

.............•.....

, ,

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ILLUSTRATIONS

(K-861757)

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TECHNICAL

ELECTRICAL

TUBE

CHARACTERISTICS:

Operating Limits:

Carrier Frequency • • . • • • • • . • • • • • • • • • • • • • • . • . • . . . . . . • • . • . • • . . • . • . . . • • . . . • •

Transmitting

Antenna Resistance:

Output

· Output 10 kw

Line Impedance

Antenna Reactance

Can be extended in a positive direction
direction

Monitoring Rectifier:

Output Impedance
Output

At

At
Rectified current
Frequency Characteristic

Power Supply . • • . . • • .• . • • • • • . • • • • • • • • • . • • • • • . . . . . . . . . . . . . • . • . . . • . .. . • . . . • . . . 230 volts, 60 cycles

COMPLEMENT:

Rectifier . . . . . . . . • • • • • • • • • • • • • • • . • • • • • • • • • • • • . . . . . . . . . . . • • . • . . • • • • . . • • . • . • . . • . . one RCA-5V 4G

Power

(maximum)

5 kw

or

less

. • . • . . • • • . • • . . . • • . • • . . . . . . . . . . . . . • . . . . . . . . . . . • . . . l O

or

less

. . . • . . . . . • • . . . . • • . . . • . . . . . • . . . . . . . . . . . . . . . . . . . • . . 20

••....................•....•............................

......•............

if

operating from a line

...••.......•........•..........

Level

(program

5-10-kw output . . . . . . • • . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 9

1-kw output

.........•........•••.••...•.....

level-including

.........•..•.......•........................................

.....•...••.•...•••.•..............•......

...•••••..

,

of

lower impedance than the antenna resistance.

SUMMARY

•

•...•....•••••.••.•..••••••.••..•......

.••..............................

by

the addition

bridging

Joss):

of

a series capacitor; and in a negative

.

..

to

operate into 20,000-ohm bridging load

75

ma

d.c. maximum into a maximum of l 000

substantially

540

ohms
ohms

50

ohms

+j500

flat

to l 0,000 cycles

kc

to

, . . .

to

1100

to

1100

to 350

to

-j500

1700

10

-15

kc

kw

ohms
ohms

ohms

ohms.

vu
vu

ohms

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MECHANICAL

Dimensions:

Height
Width

Depth . . . . . . . • . • . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . .

Weight

SPECIFICATIONS:

...••....•.•...••.•...•.•••••.••................•.•..•.••..•...•....•...

.•.•..•..•......••••.••..•••••.•..........................•.............

(net)

••..•••••.•.•••••••••••••••••••..........•...•.•.••.•.•••..•.•.....•.

44 inches
34 inches
23

inches

330 pounds

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Figure

1-Type

BPA-10

Antenna Tuning Unit

(Exterior View)

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