GPS with VHF or UHF Antenna, Marine AIS System
GPS with VHF or UHF Antenna, Marine AIS SYSTEMS
Product Description

The application shall apply for antenna unit which shall be used for Marine AIS systems & Radio Car AVL and Fleet Management systems. The combination of High Gain GPS antenna and a low profile covert VHF antenna is highly ideal for these applications that require durability, small in size, covert installation and rugged construction.

Product Specifications
Physical Condition
Dimension 71.5mm (L) x 49.5mm (W) x 27mm (H)
Weight 50 grams (excluding cable & connector)
Environmental Conditions
Operation temperature -40°C to +85°C
Storage temperature -40°C to +100°C
Relative Humidity 95% non-condensing
Cable & Connector
Cable 5 meter RG174/U (standard) cable, other length available
Connector Available BNC,TNC,FME (to be adapted), GT5, MCX (OSX), SMA, SMB or SMC in straight or right angle
Optional Adapters Universal Connector Adapter (FME to TNC/BNC/SMA/SMB/MCX)
Antenna Element
Center Frequency 1575.42 MHz +/-1.023MHz
Polarization R.H.C.P. (Right Handed Circular Polarization)
Absolute Gain @ Zenith 3 dBic Typ.
Gain 90°:2.0dBi min. 20° : -5.0dBi min. Mounted on the 60mm ¡Ñ 60mm square ground plane
Axial Ratio 90° : 3 .0dB max. Mounted on the 60mm x 60mm square ground plane
Low Noise Amplifier
Center Frequency 1575.42 MHz +/- 1.023 MHz
Gain 28+/-4.5dB
Bandwidth 10 MHz min. @S11ϑ-10 dB
Noise Figure 1.5dB Typ.
Filter 25dB @ f° ± 50MHz 35dB @ f° ± 100MHz * f°=1575.42MHz
Supply Voltages 2.5 ~5.5V DC
Current Consumption 2.5V : 6.6mA Typ. 3V: 8.6mA Typ. 4V: 12.6mA Typ. 5V: 16.6mA Typ.
Output Impedance 50 ohm
Output VSWR 2.0 max.
Overall Performance (Antenna Element, LNA & Cable)
Frequency range 1575.42 +/- 1.023 MHz
Gain At 90° 30 ± 4.5dBi-(cable loss) Note:1 Mounted on the 60mm x 60mm square ground plane
Output Impedance 50 ohm
VSWR 2.0 max.


Frequency 136 ~ 174Mhz or UHF :445 ~470Mhz
Gain Unit ( UHF: 4db)
VSWR 1.5:1
Power rating 200W
Band-width 10Mhz
Type 1/4 wave (UHF: 5/8 over 1/2 wave )
Whip length 52cm ( UHF:73CM )
Impedence 50Ω
Cable type RG58/U
Cable length 5M
Connector Mini UHF or TNC / N
Broach 3/4' hole mount