GA-38R

GA-38R

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GA-38R
  • Product Description
  • Product Specification

Small size and ruggedness, demand of vehicle locating and marine navigation GNSS antenna that will sustain harsh environment.

  • High performance
  • Out-band filtering & rejection
  • Fully waterproof IPX8
  • Voltage: 2.5 V ~5.5 V DC
  • Provides excellent signal amplification
  • ESD Design & TVS Design ( optional )

GA-38R is the integration of a high performance GNSS patch antenna and a state-of-the-art low noise amplifier into a very low profile/ extremely compact/ fully waterproof enclosure which, when connected to a GNSS receiver with 2.5~5.5V DC antenna power, provides excellent signal amplification and out-band filtering & rejection, provide 3V or 5V input Voltage is available.


FEATURES:

  • Compact Construction/ Low Profile/ Fully Waterproof
  • Magnet and Screw Mount Base
  • Excellent Temperature Stability
  • Low Noise Figure
  • High Sensitivity

APPLICATIONS:

  • Automobile GNSS
  • Bluetooth Receiver
  • Car Tracking Navigation System
  • AVL / Fleet Management Systems
  • External Antenna for Handheld GNSS
  • External Antenna for PDA Navigator
PHYSICAL CONDITION
Constructions: ABS PA777D Shell / AB Glue for water seal in between
Dimensions: 40.5mm (L) x 38mm (W) x 12.3mm (H)
Weight: 50 grams (excluding cable & connector)
Color: Standard in Black
Mounting: Magnet mount with two magnets or 3M Double sided tape

Cable & Connector
RF cable: 5 meter RG174/U (standard) cable, other length available
Pulling strength: 6 Kg @ 5sec. molded plastic on connector end for strain relief.
Connector BNC,TNC,FME,GT5,GT16,GT16F,HFC, MCX,MMCX, SMA, SMB or SMC in straight or right angle

Antenna Element
Center Frequency: 1582.5±23.5MHz(L1)and1176±12MHz(L5)
Polarization: R.H.C.P. (Right Handed Circular Polarization).
Bandwidth: ±23.5MHz(L1),±12MHz(L5)
Gain @ 10o Elevation: -4dBic typical @ L1; -0.5dBic typical @ L5
Gain at Zenith 0 dBic typical @ L1 ; 1.5 dBic typical @ L5
Output VSWR: 2.0
Output Impedance: 50 ohm

Low Noise Amplifier
Power Gain: 30±2 dB typical at 3V (L1and L5)
30±2 dB typical at 5V (L1and L5)
ESD (TVS) ±8kv (contact)
Noise Figure: 1.5 dB typical at 3V (L1 and L5)
Filter Saw filter
30dB typical fo±50MHz
40dB typical fo±100MHz
（fo=L1 and L5 band）
Supply Voltages: DC = 3~5V
Current Consumption: DC = 10±2.5mA at 3V / 27±2.5mA at 5V
Output Impedance: 50 Ω

Overall Performance: (antenna element, LNA & coax cable)
Center Frequency: 1582.5±23.5MHz(L1),and 1176±12MHz(L5)
Gain: 30±2 dB typical at 3V (L1and L5)
30±2 dB typical at 5V (L1 and L5)
Noise Figure: 2.0 max.
Bandwidth: ±23.5MHz(L1), ±12MHz(L5)
VSWR: 2.0
Output Impedance: 50 Ω

Environmental
Operating Temperature: -40°C~ +85°C.
Storage Temperature: -40°C~ +85°C.
Relative Humidity: 95% non-condensing.
Water Resistance: 100% waterproof.
＊This specification is subject to change without prior notice
Data Updated: AUG.06, 2025

Note:1:Cable Loss=(-1.2dB/m)



L5 S21:

L1 S21:

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