정가
$55.45
정가
할인가
$55.45
Features:
* 3000W High Power Handling: Supports up to 3000W SSB, 1875W CW, and 750W FM/AM/FSK/FT8, meeting the needs of high-power HF amateur radio applications.
* 1:9 Impedance Transformation: Converts 50Ω input impedance to 450Ω output impedance, providing efficient impedance matching for long-wire shortwave antennas.
* Wide 1-56MHz Frequency Range: Covers the full HF shortwave band, compatible with various long-wire, end-fed, and DIY antenna systems.
* Low SWR & Stable Signal Performance: Maintains SWR ≤1.5 for reliable operation and improved transmission efficiency across the operating frequency range.
* Durable & Easy Installation Design: Built with an epoxy resin mounting board, 304 stainless steel hanging ring, and copper connection terminals for secure antenna wire installation and long-term outdoor use.
Specifications:
* Model: BL-1:9-3000WM
* Transformation Ratio: 1:9
* Input Impedance: 50Ω (Unbalanced)
* Output Impedance: 450Ω (Unbalanced), designed for long-wire shortwave antennas
* Frequency Range: 1-56MHz
* SWR: ≤1.5
* Power Handling Capacity: 3000W (SSB), 1875W (CW), 750W (FM/AM/FSK/FT8)
* Dimensions: Outer diameter 57mm x 200mm
* Weight: 480g
* Construction: Includes an epoxy resin mounting board and a 304 stainless steel hanging ring. Equipped with two copper terminals for easy connection of antenna element wires, providing convenient installation and reliable operation.
Packing List:
* 1 x Balun
Packaging Details:
* Package Weight: 0.6kg
Precautions for Using This Balun:
* Keep the antenna element wire as close to the balun as possible and extend it as straight as possible for optimal performance.
* The recommended element length is longer than one wavelength. If this is not possible, ensure the length is at least half a wavelength (SWR may reach approximately 1.8 under this condition).
* Grounding is optional and does not significantly affect the operation of this balun.


