For many years, Naval Electronics has been a recognized design and manufacturing company for shipboard antennas and CATV/MATV-systems. The experience gained during this period, has gone into the new PR-400 series of active receiving antennas. Care in design of mechanical and electrical components ensures  years of trouble free, high performance, meeting the very special demands put on shipboard antennas. The PR-432 active antenna is optimized for AM-SW Band reception from 100 kHz to 30 Mhz and the FM Broadcast Band of 88-108 MHz. The antenna is omnidirectional and senses vertical polarization. The PR-430 covers the AM-SW Broadcast band only and the PR-431 covers the Commercial FM Broadcast band only.

Features and Specifications:

-Antenna factor Ka=0.16 with overall length 0.85 m.
-High signal handling capability, desensitization 1 dB at 10 V/m input.
-Low intermodulation.(IM3)
-External noise limited (50% probability according to CISPR 322).
-Machined marine Aluminum or Stainless steel flange *
-Lightning arrester built in.

TECHNICAL SPECIFICATIONS

AM Frequency range (Mhz) 0.1-30
Output impedance* (ohm) 75   (optional 50 ohm)
Returnloss (dB) >17 IP2 in (V/m) 1250 IP2 out (dBm) +60
IP3 in (V/m) 150 IP3 out (dBm) +38
Antenna factor Ka 0.16 Antenna noise
External noise limited (50% probability according to CISPR 322)
FM Frequency range (MHz) 88-110

75 Return loss (dB) 8
Antenna gain (dBi) typ 3dB
AM-FM Overall frequency range (Mhz) 0.1-110
Polarization Vertical

MECHANICAL

Coaxial connector * 75 ohm female F, or 50 ohm  BNC
Overall height 1 Meter
Base max dia. (mm) 60 OD
Mounting pipe dia. (mm) 45-50 (2 inch pipe)
Weight (kg) 1.65

POWER & ENVIRONMENT

Supply voltage DC (V) 15+17%
Supply current (mA) 115+10
Temperature range (C) -40 - +70

* specify

Compact Size - The PR-432 antenna is only 1 meter tall. The internal amplifiers make up for the relatively small size of the printed circuit receiving elements, delivering signals equal to much larger passive antennas. Output Impedance is a constant 50/75 ohms across the entire frequency range of the antenna, making an antenna tuner totally unneccessary. Omnidirectional reception pattern makes the PR-432 antenna perform equally on signals coming from all directions, while longwire antennas exhibit some directionality.

In shortwave applications, short vertical antennas like the PR-432 demonstrate quieter reception with much less atmospheric noise than wire antennas, especially important on lower shortwave frequencies.

On the FM Radio band a remote passive antenna is subject to severe feedline losses, resulting in weaker signals at the receiver's antenna input. The internal low-noise amplifier of the PR-432 increases signal strength before any cable losses are encountered, delivering much stronger signal levels to the receiver. Passive splitters and directional couplers and outlets are available off shelf with 2 and 4 outputs and pass the complete AM radio band from 100 KHz and higher. Passives are ground isolated for use on ships.