ByNav BY403 Tri-band Automotive-Grade GNSS Antenna (L1, L2 & L5 Bands, 84mm Diameter, Multi-Feedpoint)

The BY403 antenna is capable of simultaneously receiving signals from GPS L1/L2/L5 and BDS B1/B2/B3, GLONASS G1/G2 frequency bands, featuring high peak gain, good low elevation gain, wide-angle circular polarization, and a stable phase center. It is suitable for high-precision surveying and widely used in geodetic surveying, road construction, marine surveying, port container operations, border surveillance, and other scenarios.

Features

• The antenna part adopts a multi-feedpoint design scheme to ensure the coincidence of the phase center with the geometric center, minimizing the impact of the antenna on measurement errors.
• The antenna unit has high gain, and the radiation pattern has a wide beam, ensuring the reception of low-elevation signals. It can still operate normally in environments with significant obstructions.

Technical Specs:

Frequency Peak Gain

• ≥3dBi for L1/B1/G1
• ≥2dBi for L2/G2/B2
• ≥-7.5dBi/≥-5.5dBi for L5/B3

Polarization

• RHCP (Right Hand Circular Polarization)

Output Impedance

• 50Ω

Radiation Pattern

• Hemispherical

Output VSWR (Voltage Standing Wave Ratio)

• ≤1.5

Axial Ratio

• ≤3dB

LNA (Low Noise Amplifier) Specifications

• Gain: 30±2dB
• Noise Figure: ≤2
• Output VSWR: ≤2

Operating Voltage

• 3.3-12VDC

Operating Current

• ≤50mA

Mechanical Characteristics

• Connector: Customizable
• Size: Φ84mm×22.7mm
• Mounting Method: Magnetic adsorption/3M adhesive
• Weight: ≤200g

Operating Environment

• Operating Temperature: -40°C to +75°C
• Storage Temperature: -45°C to +85°C

Dimension (mm):

Package content:

• BY403 Antenna Main Unit with Integrated 5-Meter Cable  -SMA connector (male)
• SMA(female) to MMCX(male) adatper cable (60 cm)