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MA 160-Ex

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

  • 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.

DESCRIPTION

  • 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.

ORDERING DESIGNATIONS

TYPE FREQUENCY PRODUCT NO.
MA 160-Ex/157 154 - 160 MHz 115000035
MA 160-Ex/158.5 155.5 - 162.025 MHz 115000027
ACCESSORIES
 LW-SS-1"-Ex *    115000102

* ATEX Grounding Kit included

SPECIFICATIONS

ELECTRICAL
MODEL MA 160-Ex/...
ANTENNA TYPE ½ λ antenna
FREQUENCY Models wthin 154 - 162.025 MHz
IMPEDANCE Nom. 50 Ω
RADIATION Omnidirectional
POLARIZATION Vertical
GAIN  2 dBi 0 dBd
BANDWIDTH 6 - 6.525 MHz
SWR ≤ 2.0
MAX. RF INPUT POWER DUE TO MAX. EIRP IN ATEX ENVIRONMENT *
Group IIA 35.6 dBm (3.6 W)
Group IIB 33.3 dBm (2.1 W)
Group IIC 30.8 dBm (1.2 W)
ANTISTATIC PROTECTION All metal parts DC-grounded
(Connector shows a DC-short)
HCM CODE HCM000ND00, 040DE00
MECHANICAL
CONNECTOR
TIGHTENING TORQUE
N-female
0.7 - 1.1 Nm
WIND SURFACE 0.004 m² / 0.043 ft²
WIND LOAD 4.6 N @ 160 km/h / 99.42 mph
MAX. WIND SPEED 200 km/h / 124.27 mph
COLOUR Black
MATERIALS Whip: Black-chromed stainless steel (AiSi 630)
Mounting: Blackchromed brass
TOTAL HEIGHT Approx. 940 mm / 37.01 in.
WEIGHT Approx. 220 g / 0.49 lb.
MOUNTING On 1” RG (G1” - 11) threaded water pipe or on optional mounting brackets (see below)
TIGHTENING TORQUE 20 - 25 Nm
ATEX MARKING II 3G Ex nA IIC T6
ENVIRONMENTAL
TEMP. RANGE -30° C → +60° C
INGRESS PROTECTION LEVEL IP66

 

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

 

CALCULATION OF MAX. ANTENNA INPUT POWER IN DIFFERENT ATEX GROUPS

ATEX GROUP MAX. EIRP POWER ANTENNA GAIN MAX 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)

 

ACCESSORIES (to be ordered separately)

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

 

ATEX GROUNDING KIT

ATEX-Grounding-kit 600x

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