High  Performance Marine  AM-SW, FM Antenna

MODEL VPA 30 Active Receiving Antenna  AM-FM

MODEL Active Receiving Antenna VPA 30 AM-FM     Data  

For many years, Naval Electronics AB has been a recognized design and manufacturing company for ship-bound antennas and CATV-systems. A lot of the experience and know-how gained during this period has gone into the new VPA 30 active receiving antenna. Thorough design of mechanical and electrical parts will give you years of trouble free, top performance, meeting the very special demands put on ship antennas. The antenna is optimized for AM reception from 100 kHz to 30 MHz. The antenna is omnidirectional and senses vertical polarization.

While this antenna is used in many cases as a stand alone AM-SW, FM Radio Antenna, the VPA 30 Antenna is also commonly used in tandem with the MK20CA antenna in cases where greater sensitivity for AM-SW signals is required. The FI-30 AM Naval Filter is used as an extremely low loss diplexer to combine the AM-SW signals with the FM/TV Signals from the MK20CA antenna before they enter the Naval Electronics AB Cassette Banded Distribution Amplifier System.

Antenna Features:

Antenna factor Ka =0.16 with overall length of 0.85M.

High signal handling capability, desensitization 1dB at 10V/m input.

Extremely low intermodulation.

External noise limited (50% probability according to CISPR 322)

Die-cast hydronalium body, which is salt water resistant.

Lightning arrestor is built in.

Recognized equipment by Det Norske Veritas, Approval No. A-4531.

Cold test according to USSR Register of shipping.

Salt mist test according to DEF-STAN 810D.

Technical Data: AM:

 AM-FM:

Frequency Range: 0.1-30 MHz

Overall Frequency 0.1-110 MHz

Output Impedance: 75 Ohms

Polarization: Vertical

Return loss: >17 dB

IP2 in: 1250 V/m

Power & Environment:

IP2 out: +60 dBm

Supply voltage DC: 15V plus or minus 17%

IP3 in: 150 V/m

 Supply current 115 mA plus or minus 10 mA

IP3 out: +38 dBm

Temperature: -40 - +70 degrees Celsius

Antenna Factor kA: 0.16

Antenna noise:

External noise limited (50%      probability according toCISPR 322)

Mechanical:

FM:

Coaxial connector 75 ohm

Frequency range: 68-110 MHz

female BNC

Output impedance: 75 ohms

Rod length: 850mm

Return loss: 8 dB

Rod diameter: 10mm

Antenna gain: typ 3 dBi

Base height: 200mm

Base max. diameter: 84mm

Mounting pipe diameter: 45-50mm O.D.

Weight: 1.65 kg

Also available in a 50 ohm, N connector

 version