Spring FRP Antenna for Vehicle-Mounted Uav Jammer

• Customization: Available
• Directionality: Omnidirectional Antenna
• Frequency Range: 430-450MHz
• Model NO.: GL-4503
• Gain: 3dBi
• Material: Fiberglass
• Nature of Operation: Receiving Antenna
• Operating Wavelength: Microwave
• Polarization: Vertical
• Sturcture Form: Surface Antenna
• Usage Occasion: Drone Antenna
• VSWR: <2
• Connector: N-Male
• Usage: Communication Antenna
• Color: Black
• Fob Port: Guangzhou
• Transport Package: 48*30*28cm
• Specification: 32mm; 720mm
• Trademark: Asialeren
• Origin: China
• HS Code: 8517707090
• Production Capacity: 5000PCS/Day

Product Description

Product Description

430-450MHz 3dBi Omnidirectional Fiberglass Antenna with DC Ground, Model GL-4503

The GL-4503 is a rugged omnidirectional fiberglass antenna designed for the 430-450 MHz UHF frequency range, making it ideal for professional communication systems including land mobile radio, public safety networks, and industrial telemetry. Engineered for reliable outdoor performance, it provides complete 360° horizontal coverage with a 55° vertical beamwidth, delivering a stable 3 dBi gain for consistent connectivity across varied terrain. Featuring a durable black fiberglass radome, an N-Male connector, and integrated DC ground lightning protection, the antenna ensures safe and efficient operation in exposed environments. With a VSWR of ≤2.0, 50 Ω impedance, and support for up to 50W input power, it maintains excellent signal integrity. The GL-4503 operates reliably from -40°C to +60°C, withstands wind speeds up to 60 m/s, and includes mounting hardware for poles with diameters of 35–60 mm. Its robust construction and wide environmental tolerance make it a dependable choice for fixed and mobile UHF communication applications.

Specification

Electrical Specifications
Frequency Range	430-450MHz
VSWR	≤2.0
Gain	3dBi
Horizontal beam width	360°
Vertical beam width	55°
Polarization	Vertical
Input Impedance	50Ω
Maximum input power	50W
Lightning protection	DC Ground
Mechanical Specifications
Input connector type	N-Male
Dimensions	32×720mm
Antenna weight	0.90kg
Radome material	Fiberglass
Radome color	Black
Operating temperature	-40°c~60°c
Rated Wind Velocity	60 m/s
Mounting hardware	35~60mm

Functional Advantages

 

Optimized for UHF Professional Communication

Tailored for the 430-450 MHz band, this antenna provides reliable coverage for public safety, commercial two-way radio, and industrial wireless systems.

 

Integrated Lightning Protection and Robust Build

Features DC ground lightning protection and a weather-resistant fiberglass radome, ensuring durability and safety in harsh outdoor installations.

 

Wide Beamwidth for Versatile Coverage

With a 55° vertical beamwidth and omnidirectional horizontal pattern, it offers balanced coverage for both ground-level and elevated communication scenarios.

Core Applications

Public Safety and Emergency Communication Networks
Provides reliable UHF coverage for police, fire, ambulance, and disaster response teams operating in the 430-450 MHz band.

Industrial Telemetry and SCADA Systems
Enables stable data transmission for remote monitoring, control systems, and sensor networks in utilities, manufacturing, and transportation.

Land Mobile Radio (LMR) and Business Radio Systems
Supports commercial two-way radio communications for security, logistics, construction, and facility management operations.

Amateur Radio and Ham Operator Networks
Ideal for amateur radio enthusiasts using the 70 cm band (430-450 MHz) for local and regional communication.

Maritime and Coastal VHF/UHF Communication
Facilitates reliable ship-to-shore and port communication systems in the UHF maritime band.

FAQ

Q: What type of communication systems use the 430-450 MHz band?
A: This band is commonly used for land mobile radio (LMR), public safety communications, amateur radio (70 cm band), industrial telemetry, and some military and government wireless systems.

Q: How do I implement the DC ground lightning protection?
A: Ensure the antenna mount and coaxial cable shield are properly bonded to a certified earth ground system. The antenna provides a DC path to ground through its connector and mounting hardware.

Q: What mounting options are included?
A: The antenna is designed for mast mounting and includes hardware suitable for poles with diameters between 35 mm and 60 mm. U-bolt or clamp-style mounts are typically used.

Q: Can this antenna be used for both transmitting and receiving?
A: Yes, it is designed for full-duplex operation, supporting transmission up to 50W and reception within the 430-450 MHz frequency range.

Q: What coaxial cable is recommended for optimal performance?
A: Use low-loss coaxial cable such as LMR-400 or equivalent with an N-Female connector. Ensure proper weatherproofing of all outdoor connections to prevent moisture ingress.