AN_GPS_P228B and AN_GPS_P228F are the GNSS precision measurement antenna series launched by MASWELL, whose biggest feature is that the single antenna covers all the current satellite positioning protocols: GPS, GLONASS, Galileo, BeiDou and other multi-band. They can provide high-precision positioning and timing for the system indoors and outdoors, which are indispensable accessory for precision measurement and mapping as well as precision system.
In terms of technical specifications, the antennas have a peak gain greater than or equal to 5dBi (AN_GPS_P228B) and greater than or equal to 5.5dBi (AN_GPS_P228F), full 360° horizontal coverage angle of the antenna flap, and phase center error of only 2mm; the right circular polarization performance of the antenna is less than 3dB, and the voltage standing wave ratio VSWR is less than 1.5. Therefore, this series antenna can provide excellent global positioning signal reception performance in all directions, providing extremely high precision timing and positioning applications.
In addition, the antenna's radome is made of ABS plastic, with IP67 waterproof rating and excellent waterproof performance; at the same time, the product adopts the installation method of nut mounting, which is firmly installed and not easy to fall off.

Figure 1. Product Diagram
Features of AN_GPS_P228B and AN_GPS_P228F:
· Frequency Range:AN_GPS_P228B:GPS L1/L2
GLONASS G1/G2
BeiDou:B1/B2/B3
Galileo:E1/L1/E2/E5b/E6
AN_GPS_P228F:GPS L1/L2/L5
GLONASS G1/G2/G3
BeiDou:B1/B2/B3
Galileo:E1/L1/E2/E5a/E5b/E6
· Peak Gain:≥5dBi(AN_GPS_P228B),≥5.5dBi(AN_GPS_P228F)
· V.S.W.R:Less than 1.5 in the full frequency band
· Waterproof:IP67
· Mounting Method:Screw
· Working Environment: Suitable for outdoor 24/7 work
The performance of the internally embedded low noise amplifier (LNA) is:
Gain |
40±2dB |
Noise Factor |
≤1.5dB |
Passband Fluctuation |
±1.5dB |
Supply Voltage |
3~12V DC |
Current Consumption |
≤50mA |
Applications of AN_GPS_P228B and AN_GPS_P228 :
· High Accuracy Vehicle/UAV/Ship Positioning
· High Precision Manual Mapping
· UAV Surveying
· IoT Precision Positioning System
· Intelligent Systems
· GNSS Surveying
· BeiDou/Galileo Replacement