User guide

AIS 2/GPS-MG
GPS Antenna with a ½ λ Antenna for the 156 - 162 MHz
Band (VHF)
DESCRIPTION
Heavy-duty magnetic mount.
Provided with two 3 m cables attached:
3 m RG 58 cable with UHF-male connector for VHF.
3 m RG 174 cable with TNC-male connector for GPS.
External antenna whip mounted on the magnetic base (MG)
which includes antenna for Global Positioning System (GPS).
The antenna whip is fixed on the mount and should not be mounted
parallel or close to other metal parts. Free mounting and as high as
possible is preferable.
Built-in high-gain, low-noise amplifier.
5 V supply voltage (3 V available on request).
DC supply via TNC-connector.
ORDERING DESIGNATIONS
TYPE PRODUCT NO.
AIS 2/GPS-MG 112000063
SPECIFICATIONS
ELECTRICAL VHF
MODEL AIS 2/GPS-MG
ANTENNA TYPE Reduced ½ λ dipole, end-fed
FREQUENCY 156 – 162 MHz
BANDWIDTH ≥ 6 MHz @ SWR ≤ 1.8
IMPEDANCE Nom. 50 Ω
POLARIZATION Vertical
GAIN -1.0 dBd
SWR ≤ 1.6 @ f. res.
MAX. POWER 50 W
ELECTRICAL GPS
ANTENNA TYPE Active patch antenna
FREQUENCY 1575 MHz
IMPEDANCE Nom. 50 Ω
POLARIZATION Circular right-hand
COVERAGE Hemispherical
GAIN (in axial direction) 28 dBic in axial direction (typ.)
CROSS POLARIZATION
ATT
> 10 dB (typ.)
SELECTIVITY > 45 dB down @ ± 45 MHz
BUILT-IN AMPLIFIER
GAIN > 30 dB (typ.)
NOISE FIGURE < 1 dB (typ.)
P 1 dB
Approx. +7 dBm
SWR (output) ≤ 2.0
SUPPLY VOLTAGE 5 ± 0.5 VDC (3 V resp. 12 V on request)
SELECTIVITY > 20 dB down @ ± 100 MHz
CURRENT CONSUMPTION Approx. 25 mA
MECHANICAL (WHIP)
COLOUR Black
MATERIALS Glass fibre whip with copper wire winding,
polyethylene-covered.
Bright-chrome brass.
Housing: Chrome brass
HEIGHT Approx. 46 cm / 18.11 in.
WEIGHT Approx. 156 g / 0.34 lb.
MOUNTING On the MG
MODEL MG
APPLICATION Magnetic mount for antenna whips.
MATERIALS Stainless steel
Black-chromed brass
Weather- and shockproof plastics
TEMP. RANGE -35° C →+75° C
COLOUR Black
WEIGHT Approx. 0.9 kg / 1.98 lb.
CONNECTORS UHF (male with 3 m RG 58 cable for VHF)
TNC (male with 3 m RG 174 cable for GPS)
DIMENSIONS Total height: Approx. 40 mm / 1.57 in.
Diameter: 130 mm / 5.12 in.
MOUNTING Centre of vehicle roof for best omnidirectional
coverage
MAX. CAR SPEED Depending on whip height. See curve below