The Most Popular Handheld Duck Antenna High gain dual band 144/440 MHz Flexible Duck antenna. 15.75" long, it's 1/2 wave on 440 MHz which provides a hearty 2.15 dBi gain. On 2 Meters you get an efficient full size 1/4 wave precisely factory tune for low SWR. High-Q, low loss construction. BNC Order.
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