The TE Connectivity Y4503 is a heavy-duty directional Yagi antenna engineered for UHF commercial and amateur radio applications in the 450-470 MHz band. Fully welded and gold anodized, it delivers 9 dBi of linear gain in a rugged, weather-resistant package built to last. Solid elements are welded directly to the 7/8-inch aluminum boom for maximum structural integrity, and each unit ships with a fixed N-Female connector and a basic mounting bracket kit - ready to put to work right out of the box.
Whether you're building a base station, extending repeater coverage, or linking a remote site, the Y4503 delivers focused, high-gain performance with the durability to stand up to years of outdoor use.
FEATURES:
- 7.1 dBd / 9 dBi Gain, 3-Element Yagi - Directional design concentrates signal in a specific direction for increased range and stronger link margins compared to omnidirectional alternatives
- 450-470 MHz Coverage - Spans the UHF land mobile band including GMRS, business radio, and amateur UHF allocations
- 300W Maximum Input Power - Compatible with high-power repeater and base station installations
- Fully Welded Construction - Solid aluminum elements welded to the 7/8-inch boom prevent intermodulation and ensure long-term mechanical stability
- Gold Anodized Finish - Corrosion-resistant treatment extends service life in harsh outdoor environments including coastal, industrial, and high-humidity locations
- DC Grounded for Lightning Protection - Built-in DC ground path helps protect connected equipment from static and lightning-induced surges
- 100 MPH Rated Wind Velocity - Built to handle sustained high winds without compromising performance or structure
- N-Female Connector - Industry-standard fixed termination compatible with LMR-400 and similar low-loss feedlines
- Mounting Hardware Included - Yagi mounting kit included; fits support pipe up to 1-5/8" diameter
- 5-Year Factory Warranty - Every antenna backed by a five-year warranty reflecting the manufacturer's confidence in build quality
SPECIFICATIONS:
- Frequency Range: 450-470 MHz
- Gain: 7.1 dBd / 9 dBi
- Elements: 3
- Maximum Input Power: 300W
- Bandwidth (>1.5:1 VSWR): 20 MHz
- Vertical Beamwidth (-3 dB): 57°
- Connector: N-Female (fixed)
- Overall Length: 1.9 ft
- Weight: 2 lbs
- Wind Load: 0.15 sq ft
- Rated Wind Velocity: 100 MPH
- Mounting Pipe Diameter: Up to 1-5/8"
