400MHz band antenna for fixed station radio equipment
The 3BD-4502 (3BD4502) is a wideband 3-element Yagi antenna manufactured by Nippon Antenna, designed for the 400 MHz band. * The Yagi antenna consists of three rods of different lengths that form a single antenna, with the shorter rod serving as a director, the middle rod as a driven element, and the longest rod as a reflector, resulting in a highly directional antenna. It was invented in 1926. * This antenna is for fixed station radio equipment. * The operating frequency range is 330 to 470 MHz. Please specify the transmission frequency ft (MHz) and reception frequency fr (MHz) when placing your order. * It is used for sharing multiple frequencies with a single antenna. * The lightweight external matching type is a unique design by Nippon Antenna. * It offers stable workability and electrical performance. * It has a single directional characteristic with vertical or horizontal polarization. * The connector comes with an NJ plug. Please connect it to the radio equipment using a separately sold coaxial cable. The connector on the radio equipment side is sold separately, so please choose one that matches your radio. * For more details, please feel free to contact us.
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basic information
●This is a made-to-order product. ●Specifications ・Antenna Type: Wideband 3-element Yagi antenna ・Application: For fixed stations, vertical or horizontal polarization, single directionality ・Operating Frequency: 330–470 MHz band at fo±10 MHz ・Input Impedance: Nominal 50Ω ・VSWR: 1.5 or less within the band ・Gain (Standard Value): 8.15 dBi ・Directivity (Standard Value): E-plane half-power beamwidth ±32°, H-plane half-power beamwidth ±48° ・Front-to-Back Ratio (Standard Value): 13 dB ・Insulation Resistance: At the feed point, 500 MΩ or more at DC 500V when dry ・Withstand Voltage: No abnormalities when applying AC 1000V for 1 minute at the feed point when dry ・Feed Point Connector: N-J type ・Weight: Approximately 1.5 kg ・Effective Wind Area: Approximately 0.04 m² ・Maximum Wind Load: Approximately 82 N at 60 m/sec ・Wind Pressure Resistance: Maximum instantaneous wind speed of 60 m/sec ・Product Code: 2056115 ●Additionally, the following wideband Yagi antennas for the 400 MHz band are available: ・400 MHz band wideband 5-element Yagi antenna: 5BD-4502 ・400 MHz band wideband 8-element Yagi antenna: 8BD-4502 ・400 MHz band wideband 12-element Yagi antenna: 12BD-4502
Price information
Manufacturer's price: 128,700 yen (excluding tax) We aim to sell at a lower price than anywhere else. Please contact us for our selling price.
Price range
P3
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Applications/Examples of results
【Usage Example】 ■Outdoor, etc.
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Exceli Co., Ltd. sells and rents wireless devices, transceivers, and intercoms. With 33 years of experience, we have a track record of transactions with over 70,000 customers. We provide support 365 days a year until late at night, delivering wireless devices, transceivers, and intercoms throughout Japan. Additionally, we offer free trials for almost all models before purchase. Rest assured, we also handle after-sales repairs in-house. We are a company approved under the Ministry of Economy, Trade and Industry's Management Innovation Support Law (No. 15 Sanro Shokei 707). We have been certified as a premier dealer by Motorola for our excellence in "proposal capability," "after-sales maintenance," "experience," and "technical skills."
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