Nagoya NA-773 – Telescopic Dual-Band Antenna

The Nagoya NA-773 is a high-quality telescopic antenna designed for handheld radios and RF devices. With an SMA male connector and 50 Ω impedance, it is optimized for dual-band operation in the 144 MHz (VHF) and 430 MHz (UHF) ranges, while maintaining strong performance across all frequencies below 1 GHz. Its telescopic design allows for easy adjustment, improved reception, and portability, making it a versatile accessory for both ham radio operators and RF signal testing.

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Key Features

• Model Number: NA-773

• Type: Telescopic UHF/VHF antenna

• Connector: SMA male

• Impedance: 50 Ω

• Dual-Band Coverage: 144 MHz (VHF) / 430 MHz (UHF)

• Extended Compatibility: Included in multiple RF Explorer models (WSUB1G, ISM Combo, 3G Combo, 6G Combo)

• Portable Design: 40.3 cm length when fully extended, retractable for easy storage

• Build Quality: Durable, RoHS compliant, designed for long-term use

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Benefits

• Enhances signal strength and reception for VHF/UHF handheld radios

• Usable across a wide range of frequencies below 1 GHz

• Telescopic length provides flexibility between portability and range performance

• Works as a replacement or additional antenna for RF Explorer spectrum analyzers and signal generators

• Lightweight and easy to carry, ideal for field use or everyday communication

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Technical Specifications

• Impedance: 50 Ω

• Dual Band: 144 / 430 MHz

• Usable Range: All frequencies below 1 GHz

• VSWR (144/430 MHz): <1.5

• Gain (144/430 MHz): 2.1 dBi

• Max Power: 10 W

• Length: 40.3 cm (fully extended)

• Dimensions: 150 × 40 × 15 mm

• Weight: 36 g

• Compliance: RoHS

• Country of Origin: China

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Package Contents

• 1 × Nagoya NA-773 Telescopic Antenna