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Start Active Receiving Antennas Dipoles Horizontally Polarized Active / Passive Receiving Antenna HD 1 A/P - HA 1 A/P

Active / Passive Receiving Antenna HD 1 A/P - HA 1 A/P

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Active / Passive Receiving Antenna HD 1 A/P - HA 1 A/P
Dimensions and Weights
Technical Data
Accessories
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Active / Passive Receiving Antenna 1.5 - 30 MHz

Horizontally Polarized Dipole and Monopol


Description

This antenna is applicable for the reception of the short wave range (1,5 – 30 MHz) on board of naval ships. It consists of a horizontal polarized dipole and a horizontal polarized monopol. Both antennas can be either operated in active mode (optimal sensitivity) and passive mode (optimal immunity).

The small dimensions and associated low weight makes this antenna ideal for both stationary - where space is at a premium - and transportable applications.

Active / Passive Receiving Antenna HD 1 A/P - HA 1 A/P

 

The antenna amplifiers are installed in a watertight and seawater resistant cast aluminum alloy housing, the antenna head. The antenna rods are made of glass fibre reinforced plastic fitted with stainless steel screw connections.

The cable connectors are fitted to the bottom side of the antenna head's bottom flange. It is protected against the environment by means of a trumpet shaped mounting support (the funnel) which is mounted to the bottom flange of the antenna head. The opposite end of the funnel fits the size of 2" supporting pipes.

The output impedance of the antenna is 50 ohms, so that even long cable lengths between the antenna and receiver can be used

With regard to the robust construction and the use of weatherproof materials our active antennas can be used under extreme environmental conditions.

The operating voltage is supplied to the active element through the inner conductor of the coaxial cable from the power supply and control unit AAN 300. On failure of power supply the receiving antenna is automatically switched to passive mode, so that the receiving operation further maintained.

 


 

 

Dimensions and Weights

 


Dimensions HD 1 A/P - HA 1 A/P

Weight approx. 13 kg

 


 

 

Technical Data

Application

Receiving Antenna
active/passive mode switchable

Characteristic

one horizontally polarized dipole antenna
and one
horizontally polarized monopole antenna

Colour RAL 7000
Weight with antenna rods approx. 13 kg
Antenna Head housing Aluminium cast
Antenna rods GFK, length 2000 mm, RAL 7000
Bending moment at mounting flange 100 daNm (wind speed 150 km/h)
Ambient temperature -40°...+60°C
Storage temperature -55°...+80°C
Relative humidity 100 %
EMP STANAG 4145
Lightning protection 500 kV/m/μs
RF connector 2 N socket
Power supply 37,5 Vdc through coaxial cable
from power supply and control unit AAN 300

 

 

HF Data Dipole Active Mode Passive Mode
Frequency range 1.5 – 30 MHz 1.5 – 30 MHz
Polarization horizontal horizontal
Output impedance 50 Ω, VSWR < 2,0
50 Ω, VSWR < 2,0
Effective height at 50 Ω
2,0 m 0,14 m (6 MHz)

Equivalent noise field strength
(limit of sensitivity B=1 Hz)

≤ 3,6 nV/m (6 MHz)
≤ 43 nV/m (6 MHz)
Sensitivity
(B=3 kHz, S/N=10 dB)
≤ 0,61 μV/m (6 MHz)
7,3 μV/m (6 MHz)
Intermodulation 2nd order (1)
(E1=E2=100 mV/m)
≥ 50 dB (6 MHz)
---
Intermodulation 3rd order (1)
(E1=E2=100 mV/m)
≥ 70 dB (6 MHz)
---
Max. tolerable field strength
(1dB reduction of gain)
≥ 2 V/m ---

 

 

HF Data Monopole
Active Mode Passive Mode
Frequency range 1.5 – 30 MHz 1.5 – 30 MHz
Polarization horizontal horizontal
Output impedance 50 Ω, VSWR < 2,0 50 Ω, VSWR < 2,0
Effective height at 50 Ω 2,0 m 0,22 m (6 MHz)
Equivalent noise field strength
(limit of sensitivity B=1 Hz)
≤ 3,6 nV/m (6 MHz) ≤ 28 nV/m (6 MHz)
Sensitivity
(B=3 kHz, S/N=10 dB)
≤ 0,61 μV/m (6 MHz)
≤ 4,7 μV/m (6 MHz)
Intermodulation 2nd order (1)
(E1=E2=100 mV/m)
≥ 58 dB (6 MHz) ---
Intermodulation 3rd order (1)
(E1=E2=100 mV/m)
≥ 72 dB (6 MHz) ---
Max. tolerable field strength
(1dB reduction of gain)
≥ 4 V/m ---

 

 

Notes
(1) The data refer to a height of 3 m.
Data given without tolerance are typical values.
Design and specification are subject to change without prior notice, errors excepted.
Product specification 01-02-04,
© AAS GmbH

 


 

 

Accessories

Type Designation Application
AAN 300 Power Supply and Control Unit 115/230 Vac
TR 20/E 2" supporting pipe 2 m high steel hot galvanized
TR 30/E 2" supporting pipe 3 m high steel hot galvanized

 

 

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For further information please contact

Active Antenna Systems AAS GmbH
Albert-Einstein-Ring 21, 22761 Hamburg, Germany
Phone +49 40 899 695 - 0 Email info@aas.de

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(c) 2011 AAS GmbH. All rights reserved. Design and administration by ancomi