MA 160-Ex

ATEX certified, End-fed ½ λ dipole marine and base station antenna for the International Maritime VHF band in Hazardous areas

Description

  • MA 160-Ex/... is a 0 dBd, vertically polarized, omnidirectional marine and base station antenna.
    Models within 154 - 162.025 MHz.
  • Full-size, end-fed ½ λ, black-chromed stainless steel whip.
  • Before installing the antenna, read the ATEX Product Manual carefully.
  • The antenna is suitable for use in gas groups IIA, IIB and IIC in zone 2.
  • The antenna can be mounted on threaded 1" water pipe using the supplied 1" revolving nut. In this way, a nice, slim installation is obtained.
  • A wide variety of accessory mounting hardware (see below) gives ample choice regarding alternative ways of installation.
  • All metal parts in the antenna are DC-grounded. Consequently, the antenna shows a DC-short across the coaxial cable.
  • The antenna is a ½ λ design and this means that it needs neither loading coils, ground-plane, radials nor other auxiliary arrangements.

Specifications

Electrical
Model MA 160-Ex/...
Frequency Models wthin 154 - 162.025 MHz
Antenna Type ½λ antenna
Polarisation Vertical
Pattern Type Omnidirectional
3 dB Beamwidth, H-Plane Omnidirectional
Impedance 50 Ω
Gain 0 dBd (2.2 dBi)
SWR < 2.0:1
Bandwidth 6 - 6.525 MHz
Antistatic Protection All metal parts DC-grounded (Connector shows a DC-short)
HCM Code(s)
Mechanical
Connector Torque N-female 0.7 - 1.1 Nm
Wind Area 0.004 sq. m / 0.04 sq. ft
Materials Whip: Black-chromed stainless steel (AiSi 630)
Mounting: Blackchromed brass
Installation Torque 20 - 25 Nm
Colour Black
Height 940 mm / 37.01 in.
Wind Load 4.6 N (160km/h)
Weight 0.22 kg / 0.49 lb
Mounting On 1" RG (G1" - 11) threaded water pipe or on optional mounting brackets (see accessories )
ATEX Marking II 3G Ex nA IIC T6
Environmental
Operating Temperature Range -30°C to +60°C
Survival Wind Speed 200 km/h
Ingress Protection IP66

Ordering Designations

Model Product No. Frequency
MA 160-Ex/157 115000035 154 - 160 MHz
MA 160-Ex/158.5 115000027 155.5 - 162.025 MHz
LW-SS-1"-Ex * 115000102

ACCESSORIES (to be ordered separately)

Bjaelke-ATEX-acc-1tom-samlet-GB

 

ATEX GROUNDING KIT

ATEX-Grounding-kit 600x

 

CALCULATION OF MAX. ANTENNA INPUT POWER IN DIFFERENT ATEX GROUPS

ATEX GROUPMAX. EIRP POWERANTENNA GAINMAX INPUT POWER
IIA 37.7 dBm (6.0 W) 0 dBd / 2.15 dBi 35.6 dBm (3.6 W)
IIB 35.4 dBm (3.5 W) 0 dBd / 2.15 dBi 33.3 dBm (2.1 W)
IIC 33.0 dBm (2.0 W) 0 dBd / 2.15 dBi 30.8 dBm (1.2 W)

 

*See the ATEX Product Manual (safety and mounting instructions) and related EU DECLARATION OF CONFORMITY ATEX Directive 2014/34/EU.