Becker Avionics TG660 Users Manual

RF Power Amplifier

PA3-2AB-AIR

lnstallation and Operation

Manual
Issue 1

BECKER AVIONICS INC.  10376 USA Today Way  Miramar FL 33025  USA

Telephone [phone]  Fax [phone]

http://www.beckerusa.com  Email: [e-mail]

PA3-2AB-AIR-1

DV
March 2016

TABLE OF CONTENTS

I. PRODUCT DESCRIPTION
II. GENERAL SPECIFICATION
III. OPTIONS
IV. CAUTION
V. OPERATING PRECAUTIONS
VI. INSTALLATION
VII. WARRANTY
VIII. SERVICE

I. PRODUCT DESCRIPTION

Typ

Max

Unit

Condition

Frequency Range

BW

118

138

MHz

Operating bandwidth within range

OBW

20

MHz

Input Power

PIN

Watt

CW

Output Power

P

OUT

Watt

CW or 100 W PEP@ M=100%

Gain

G 6 7 8 dB

Output Flatness

ΔP

OUT

±1.0

dB

Duty Cycle

D

40

%

per EIA/TIA-603-C

Harmonic Emissions

Har

-67

-62

dBc

P

OUT

= 100 W PEP

Spurious Emissions

Spur

-75

-70

dBc

P

OUT

= 100 W PEP

Operating Voltage

VDD

Volt DC

Supply Current

IDD

2.5

3.0

Amp DC

Avg @ P

OUT

= 100 W PEP

Input VSWR

S11

2.1

VSWR

Operating Mode

Mode

AM / FM / CW

Impedance, Input

Z

IN

Ω

Impedance, Output

Z

OUT

50

Ω

Modulation Linearity

THD

3%

5%

@ M =90%

Receive Path Insertion Loss

IL

0.6

1.0

dB

COR Attack Time

T

ATK

1.0

2.0

mS

The PA3-2AB-AIR-1 model is a mobile Air Band AM VHF RF power amplifier intended for
use in the mobile applications. This amplifier can deliver 50 watts CW (100 watts PEP) of
RF power when driven with 7 watts CW and it will cover the frequency range from 118-138
MHz.
The mobile amplifier is designed to be installed in the interior of a car or in the trunk.

The PA3-2AB-AIR-1 can be also use as an amplifier module for VHA AM GTA transceivers.

The amplifier’s dimensions are: 7.5”L x 2.2”H x 3.7” W (see figure 1).

Figure 1. Package dimensions.

II. GENERAL SPECIFICATIONS

The general specifications for the VHF amplifier are shown in this section.

6

7.5
50

24 29.8

50

10