GOOZEEZOO JYR4010-1000W End Fed Half Wave Antenna for Ham Radio, 1000W Shortwave Radio Antenna, 4 Band 10m 15m 20m 40m Long Wire Antenna, 1:64 Balun($149.99Value)

Description

Multiband & Low SWR：An end fed antenna is a multiband HF antenna engineered for smooth, reliable operation across 40m, 20m, 15m, 10m. This half-wave end fed antenna delivers consistently low SWR across all supported bands, enabling efficient signal transmission and reception without constant adjustment. Fully compatible with Yaesu, Icom, Xiegu, Kenwood, and most HF transceivers, it offers outstanding flexibility for a wide range of amateur radio applications Large Ferrite Core, High Power Handling: This professional end fed antenna is a high-power HF antenna built to withstand demanding operating modes: SSB: < 1000 W; CW: < 500 W; FT8: < 300 W. No external tuning is required, allowing operators to transmit confidently with stable performance during extended operating sessions. It features a large ferrite magnetic core (85x54x25 mm) for stable impedance transformation, supporting high-power use with reliable performance Flexible Hanging & Easy Deployment: An end fed ham antenna designed for fast and flexible installation. For optimal performance, keep the antenna 3m (9.8ft) away from objects (including foliage) and 5m (16.4ft) from metal surfaces. It can be deployed horizontally, vertically, or diagonally, with flexible balun placement—making it ideal for field work, backyard setups, home stations, and long-term outdoor use. Perfect for POTA activations, temporary field deployments, long-term camping, and overlanding—supporting reliable contacts around the world Rugged & Reliable Construction: Crafted with an ABS shell, the 1:64 Balun Antenna offers durability and excellent craftsmanship. Heavy-gauge antenna wire, a reinforced end insulator, secure clamping system, and a sealed housing ensure long-term durability and stable performance in diverse weather conditions. For best longevity, inspect the installation and guy rope every 6 months (typical service life 3–5 years) Innovative Natural Cooling Design (GOOZEEZOO Exclusive): The GOOZEEZOO end fed hf antennas for ham radio is a newly engineered HF antenna featuring an air-convection cooling housing. Cold air naturally enters from the bottom while hot air exits from the top, forming continuous airflow that reduces heat buildup and prevents overheating.This passive cooling design allows the antenna to operate more stably for longer periods, improving reception performance Since its launch, this antenna has been highly praised for its sufficient power and high efficiency. The core of the end-fed antenna lies in the magnetic ring, the size of which determines the power handling capacity of the antenna.
This antenna utilizes a large 63 x 38 x 14.5mm magnetic ring from a world-renowned manufacturer. The radiator is made from 2.5 square millimeter thin-skinned wire, and in March 2022, the parameters of the balun were optimized to achieve lower insertion loss and standing wave ratio, bringing the impedance closer to 50 ohms.
Due to the higher frequency of the 6-meter band, controlling the inductance of the magnetic ring can be challenging, so the antenna you purchase may have the opportunity to resonate on the 6-meter band (i.e., Band 5).
End-fed antennas are characterized by their multi-directional properties, eliminating the need to choose a specific direction during setup. It is advisable to select an open and elevated location.
When setting up the antenna, it should be position meters away from any objects ( it should be positioned more than 3 meters away from any objects (including tree leaves), and if there are metal objects, it should be placed more than 5 meters away. If the setup environment affects the resonant frequency, you can adjust the structure by slightly modifying the length of the fold-back at the end; however, trimming is not recommended.
The balun has a radiator on one side and is empty on the other. This structure makes the antenna very convenient to set up; simply pull both ends with a rope, ensuring that the radiator and balun are more than 3 meters away from any objects.
It can be horizontally, vertically, or diagonally pulled, and the balun can be placed either above or below, making it suitable for concealed setups, especially ideal for rapid deployment in urban areas and the wilderness.
Specification:
Antenna Configuration: 2.5 mm² wire, 20 meters length, 20 meters guy rope, 1:64 balun
Operating Bands: 10, 15, 20, 40-meter waves
Power Handling: SSB < 150W, CW.FT8 < 100W
Shipping Weight: 3.5 pounds
Shipping Dimensions: 7.9*7.9*4 inches