SY301 Helix GNSS Antenna – High-Performance L1/L2 GPS/GLONASS RTK Antenna
The SY301 is a high-gain helix GNSS antenna engineered for superior multi-band satellite signal reception. Designed to support L1/L2 GPS, GLONASS, and BeiDou, the SY301 offers enhanced signal stability, fast acquisition, and excellent multipath mitigation—making it ideal for UAVs, RTK surveying, precision agriculture, and GIS data collection.
Featuring a precision-wound helical element, the antenna delivers consistent radiation patterns and gain across GNSS frequencies, even during motion or tilting. Its compact and lightweight build, combined with rugged IP-rated construction, ensures reliable performance in challenging outdoor conditions.
Key Features:
- Helix antenna design for wide-angle, high-accuracy GNSS reception
- Supports L1/L2 GPS, GLONASS, BeiDou signals
- Lightweight and compact—ideal for UAVs, drones, and mobile platforms
- High gain and low noise figure for RTK and dual-frequency receivers
- Durable housing with environmental sealing for field deployments
- Compatible with standard GNSS receivers via SMA connector
Whether for airborne mapping or mobile GNSS tracking, the SY301 Helix Antenna delivers dependable, high-precision results when it matters most.

Specifications:
|
Item |
Specifications |
|
|
Antenna |
Frequency Range |
Compass:B1/B2/B3; GPS:L1/L2; GLONASS:G1/G2; Galileo:El/E5b |
|
Impendance |
50Ω |
|
|
Polarization |
RHCP |
|
|
Gain |
2dBi(Zenith) |
|
|
Axial Ratio |
≤ 3dB |
|
|
Horizontal coverage angle |
360° |
|
|
V.S.W.R |
< 2.0 |
|
|
LNA |
Gain |
33±2dB |
|
Noise Figure |
≤ 1.5dB |
|
|
V.S.W.R |
< 2.0 |
|
|
Passband fluctuation |
±2dB |
|
|
Supply Voltage |
3.0~16V DC |
|
|
Current Consumption |
≤ 35mA |
|
|
Mechanical |
Connector |
SMA |
|
Environmental |
Operating Temperature |
-40℃~+85℃ |
|
Relative Humidity |
Up to 95% |
|
|
Ingress Protection |
IP67 |
|
|
Vibration |
10 to 55Hz with 1.5mm amplitude 2hours |
|
|
Environmentally Friendly |
ROHS Compliant |
|
Original: $71.44
-70%$71.44
$21.43


Description
The SY301 is a high-gain helix GNSS antenna engineered for superior multi-band satellite signal reception. Designed to support L1/L2 GPS, GLONASS, and BeiDou, the SY301 offers enhanced signal stability, fast acquisition, and excellent multipath mitigation—making it ideal for UAVs, RTK surveying, precision agriculture, and GIS data collection.
Featuring a precision-wound helical element, the antenna delivers consistent radiation patterns and gain across GNSS frequencies, even during motion or tilting. Its compact and lightweight build, combined with rugged IP-rated construction, ensures reliable performance in challenging outdoor conditions.
Key Features:
- Helix antenna design for wide-angle, high-accuracy GNSS reception
- Supports L1/L2 GPS, GLONASS, BeiDou signals
- Lightweight and compact—ideal for UAVs, drones, and mobile platforms
- High gain and low noise figure for RTK and dual-frequency receivers
- Durable housing with environmental sealing for field deployments
- Compatible with standard GNSS receivers via SMA connector
Whether for airborne mapping or mobile GNSS tracking, the SY301 Helix Antenna delivers dependable, high-precision results when it matters most.

Specifications:
|
Item |
Specifications |
|
|
Antenna |
Frequency Range |
Compass:B1/B2/B3; GPS:L1/L2; GLONASS:G1/G2; Galileo:El/E5b |
|
Impendance |
50Ω |
|
|
Polarization |
RHCP |
|
|
Gain |
2dBi(Zenith) |
|
|
Axial Ratio |
≤ 3dB |
|
|
Horizontal coverage angle |
360° |
|
|
V.S.W.R |
< 2.0 |
|
|
LNA |
Gain |
33±2dB |
|
Noise Figure |
≤ 1.5dB |
|
|
V.S.W.R |
< 2.0 |
|
|
Passband fluctuation |
±2dB |
|
|
Supply Voltage |
3.0~16V DC |
|
|
Current Consumption |
≤ 35mA |
|
|
Mechanical |
Connector |
SMA |
|
Environmental |
Operating Temperature |
-40℃~+85℃ |
|
Relative Humidity |
Up to 95% |
|
|
Ingress Protection |
IP67 |
|
|
Vibration |
10 to 55Hz with 1.5mm amplitude 2hours |
|
|
Environmentally Friendly |
ROHS Compliant |
|



















