Becker PA3-2AB-AIR, Lnstallation And Operation, Page: 3 / 9

I. PRODUCT DESCRIPTION
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 5
0
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.
Typ Max Unit Condition
Frequency Range BW 118 138 MHz
Operating bandwidth within range
OBW 20 MHz
Input Power P
IN
6
7.5
10
Watt CW
Output Power
P
OUT
5
0
Watt
CW or 100 W PEP@ M=100%
Gain
G 6 7 8 dB
Output Flatness
Δ P
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 V
DD
24 29.8
Volt DC
Supply Current
I
DD
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
50 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