Anti-Jamming


JF-JH703

1,Advanced Beamforming Technology2,Strong Multipath Signal Suppression3,Superior Out-of-Band Signal Rejection4,Compact and Durable Structure
Product Description:

JF-JH703  is a robust, full-frequency helical antenna with high interference immunity. It is designed to mitigate co-frequency signal interference, high-power signal interference, and multiple radio communication system interference, ensuring high-precision positioning in complex electromagnetic environments. The antenna employs beamforming technology to enhance signal strength and quality, and utilizes advanced pre-multiple filtering to effectively suppress out-of-band noise and multipath signals, significantly improving anti-interference capabilities. These features make it ideal for use in drones, aviation, vehicle-mounted, and shipborne devices. Additionally, it is compatible with multi-brand boards and can achieve static millimeter-level positioning.

 

ANTENNA PERFORMANCE
Frequency CoverageGPS/QZSS L1/L2/L5, BDS B1/B2, GLONASS G1/G2, GALILEO E1/E5, L-band 1540M
VSWR≤2
Impedance50Ω
PolarizationRHCP
Axial Ratio≤3dB
Coverage AngleAzimuth: 0-360°; Elevation: 0-90°
Peak Gain4dBic@1164~1254MH
2.5dBic@1559~1606MHz
CIRCUIT PERFORMANCE
LNA Gain35±2dB
Out-of-Band RejectionLower Band: 1164 -1254 MHz
≥85dB@<1100>1300 MHz;
≥85dB@>1325 MHz
Upper Band: 1559-1606 MHz
≥85dB@<1526MHz; ≥35dB@<1536MHz;
≥50dB@>1626MHz
Burnout Resistance≥10W
Noise Figure≤2.5dB
Group Delay≤10ns
VSWR≤2
Operation Voltage5-12V
Operation Current≤150mA
SYSTEM PERFORMANCE
Phase Center Error≤4mm
Positioning AccuracyStatic millimeter level
Adaptation BoardCompatible with multi-brand boards, with some requiring
LNA gain adjustment
MECHANICAL
DimensionsΦ109mm*H134mm (Connector not included)
Weight≤250g
Antenna CoverRadome: PC; Base: Aluminum Alloy
Mounting4*M3 screws fixed, upward or downward
ColorBlack
ConnectorTNC-K
ENVIRONMENTAL
Operating Temperature-40°~+70°
Storage Temperature-45°~+85°
Waterproof RatingIP67
Salt Spray TestConducted for 96 hours using neutral salt spray
Mechanical Shock Test≤50g
Quality LevelIndustrial Grade
Product CertificationFCC, CE, RoHS
Localization Rate100%


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