User's Manual

I. PRODUCT DESCRIPTION
The PA3-1XE model is a VHF RF power amplifier series intended for use in the
mobile applications. This amplifier can deliver RF power from 40 to 125 W when
driven with 1 to 50 W (model dependant) and it will cover the frequency range
from 136 - 174 MHz. The mobile amplifier is designed to be installed in the
interior of a car or in the trunk. The amplifier’s dimensions are: 11.6”L x 3.0”H x
5.5” W (see figure 1) and the weight is 5 lbs.
Figure 1. Dimension (D package).
II. GENERAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS @ V
DD
= 13.8 VDC Nom., T
A
= +25° C
Parameter Symbol Min. Typ. Max. Unit Condition
Frequency Range BW 136 174 MHz
Operating bandwidth within range OBW 38 MHz
Input Power P
IN
1 50 Watt Model dependant
Output Power P
OUT
40 125 130 Watt See Note 1
Output Flatness ΔP
OUT
±0.5
dB
Gain G
16
dB
Duty Cycle D 40 % per EIA/TIA-603-C
Harmonic Emissions Har -70 -65 dBc P
OUT
= 125 W
Spurious Emissions Spur -80 -75 dBc P
OUT
= 125 W
Operating Voltage V
DD
11 13.8 15 Volt
Supply Current I
DD
14 Amp P
OUT
= 125 W
Input VSWR S11 1.3:1 2:1 VSWR
Operating Mode Mode FM/CW
Emission Designators ED F1E, F1D, F1W, F3E, F2D, F7W, FXD, FXE
Input / Output Impedance Z
IN /
Z
OUT
50 Ω
Receive Path Insertion Loss IL 0.5 1 dB
SSR Attack Time t
ATK
100 250 μS