The revised CHA-250B, known as the CHA-250HD, features a significant improvement in its design. The top section of aluminum has been replaced with a solid whip, providing greater flexibility and reducing strain on the lower sections in high winds. This unique broadband vertical antenna requires no ground radials, making it an exceptionally convenient choice.

Remarkably, the CHA-250HD is incredibly easy to assemble, requiring no tuning or adjustments. Its VSWR (Voltage Standing Wave Ratio) is maintained below 1.6:1 continuously across a wide frequency range, from 3.5 to 57 megahertz. Unlike a traditional 1/4 wave vertical antenna, the CHA-250HD is an end-fed long wire type antenna with a matching transformer in a vertical position.

This innovative design offers several advantages. The solid whip top section provides greater flexibility, allowing the antenna to better withstand the stresses of high winds, ensuring reliable performance in a variety of environmental conditions. The lack of ground radials simplifies the installation process, making the CHA-250HD an appealing choice for those seeking a hassle-free antenna solution.

The continuous low VSWR across such a broad frequency range is a testament to the antenna's exceptional broadband capabilities. This feature eliminates the need for constant tuning or adjustments, saving users time and effort. The end-fed long wire design with a matching transformer in a vertical position further enhances the antenna's versatility, allowing it to be used in a wide range of applications and environments.

In summary, the CHA-250HD is a significant improvement over the previous CHA-250B model. With its solid whip top section, broadband performance, and easy assembly, this antenna offers a compelling solution for radio enthusiasts and professionals alike. The combination of flexibility, convenience, and consistent performance makes the CHA-250HD a standout choice in the world of antenna technology.

product information:

Attribute

Value

package_dimensions

73 x 4.3 x 4.2 inches

item_weight

9.63 pounds

customer_reviews