Mechanical structure of the antenna
The antenna is housed in a round weatherproof plastic casing. The casing cover is arched to prevent any rain water, snow or other impurities from settling on the antenna.
The mechanical construction consists of sturdy, anodized aluminium or aluminium die-casting and is designed to resist high winds.
The plastic housing can be installed horizontally as well as vertically to the mechanical parts, allowing both wall and flat-roof installation of the antenna. The antenna cable can be fed either through the base or through a slot on the side of the mounting flange.
Electrical structure of the antenna
As the antenna is non-directional, reception cannot be improved by mechanical shaping as, for example, with parabolic antennas. Therefore the signal strength at the antenna input is about 1 x 10-16 Watts and already below the generally permitted noise level.
An extremely low-noise pre-amplifier is placed behind the antenna in order to feed the signals to the electronics via an antenna cable. The antenna cable also supplies the voltage to the pre-amplifier.
|FG4490M00||Mounting kit for hopf GPS/GNSS antennas FG4490Gxx, flat roof and wall mounting|
|FG4490M01||Mounting kit for hopf GPS/GNSS antennas FG4490Gxx, mast mounting with angled bracket|
|FG4490G00||Antenna for receiving GPS satellite signals|
|FG4490G01||Antenna for receiving GPS satellite signals with integrated heating|
|FG4490G02||Multi GNSS antenna for receiving GPS, GLONASS, Galileo, and BeiDou satellite signals|
|FG4490G03||Multi GNSS antenna for receiving GPS, GLONASS, Galileo, and BeiDou satellite signals with integrated heating|
|FG4490B00||Item set hopf GPS antenna consisting of FG4490G00 and FG4490M00|
|FG4490B01||Item set hopf GPS antenna consisting of FG4490G01 and FG4490M00|
|FG4490B02||Item set hopf Multi GNSS antenna consisting of FG4490G02 and FG4490M00|
|FG4490B03||Item set hopf Multi GNSS antenna consisting of FG4490G03 and FG4490M00|
|FG4490B10||Item set hopf GPS antenna consisting of FG4490G00 and FG4490M01|
|FG4490B11||Item set hopf GPS antenna consisting of FG4490G01 and FG4490M01|
|FG4490B12||Item set hopf Multi GNSS antenna consisting of FG4490G02 and FG4490M01|
|FG4490B13||Item set hopf Multi GNSS antenna consisting of FG4490G03 and FG4490M01|
|FG4496M00||Mounting kit for hopf surge protective devices FG4496Gxx|
|FG4496G00||Coaxial surge protective device for hopf GPS / GNSS high frequency antenna systems, BNC connector (female)|
|FG4496S00||Item set hopf surge protective device consisting of FG4496G00 and FG4496M00|
|FG4490B00-S000||Item set hopf GPS antenna system consisting of FG4490B00 and FG4496S00|
|FG4490B01-S000||Item set hopf GPS antenna system consisting of FG4490B01 and FG4496S00|
|FG4490B02-S000||Item set hopf Multi GNSS antenna system consisting of FG4490B02 and FG4496S00|
|FG4490B03-S000||Item set hopf Multi GNSS antenna system consisting of FG4490B03 and FG4496S00|
|FG4490B10-S000||Item set hopf GPS antenna system consisting of FG4490B10 and FG4496S00|
|FG4490B11-S000||Item set hopf GPS antenna system consisting of FG4490B11 and FG4496S00|
|FG4490B12-S000||Item set hopf Multi GNSS antenna system consisting of FG4490B12 and FG4496S00|
|FG4490B13-S000||Item set hopf Multi GNSS antenna system consisting of FG4490B13 and FG4496S00|
|Type of antenna:||micro-strip-line with pre-amplifier|
|Mean frequency:||1575.42 MHz|
|Band width:||10 MHz|
|Angle of view:||+10° above the horizon|
|Power amplification:||20 dB|
|Voltage supply via the antenna cable:||4.5 - 7V DC|
-30° C bis +85° C
-40° C bis +85° C
|Category of application:||outdoors|
|MTBF:||> 500,000 h (Equipment may be damaged by lightning - mentioned values are only theoretical values)|
- Technical Manual GPS Antenna Equipment
- FG4490M00 Quick Installation Guide
- FG4490M01 Quick Installation Guide
Software and Driver
- For this product there is no Software / Driver available.