SL-16 connector 120W high power HF antenna for car

Product Introduction

Broadband Shortwave Coverage for Long-Distance Communication

Supports the 7-50MHz shortwave (HF) band, enabling skywave transmission via ionospheric reflection. Breaking line-of-sight limitations, it achieves ultra-long-distance communication over distances of hundreds to thousands of kilometers, providing the ultimate solution for emergency and long-range communication.

High Power Capacity for Strong Signal Penetration

With a maximum input power of up to 120W, more than twice that of ordinary vehicle antennas, it can drive stronger signals, effectively coping with harsh electromagnetic environments and ensuring clear signal transmission over long distances.

Optimized Low-Elevation Radiation for Enhanced Communication Efficiency

Although the antenna gain is 2.15dBi (close to the benchmark value for omnidirectional antennas), its radiation mode is optimized for vehicle movement, providing more effective low-elevation radiation, crucial for shortwave communication.

Professional Structural Design for Mobile Applications

A length of nearly 2 meters (1953mm) is the necessary physical structure for efficient shortwave signal radiation. Precise mechanical design provides excellent wind and vibration resistance, ensuring stability and durability during vehicle movement.

Plug-and-play compatibility, rapid deployment. Utilizing the widely used SL-16 interface in vehicle-mounted equipment and equipped with a low-loss RG174 cable, it can quickly connect to most HF-band-supporting vehicle-mounted radios, requiring no complex tuning and ready for emergency or daily use.

Application Scenarios:

●Emergency Rescue Communication: In disaster areas where ground networks are disrupted, it serves as a long-range communication lifeline between rescue command vehicles and rear bases.

●Amateur Radio (Ham Radio): Meets the needs of amateur radio enthusiasts for vehicle-mounted shortwave communication, participation in international competitions, and expeditions.

●Long-distance Transportation and Exploration: Provides communication support beyond the range of conventional V/UHF walkie-talkies for convoys traversing deserts, jungles, and remote areas.

●Military and Government Applications: Serves as a component of long-range, mobile communication links requiring confidentiality.

●Maritime and Coastal Communication: Installed on coastal vehicles for shortwave communication with vessels in nearby waters.

FAQ

Q: Does this antenna require a radio? Is an additional tuner needed?

A: It needs to be used with a car radio that supports 7-50MHz transmission. The GLB750 itself is a passive antenna, and its wide-bandwidth design allows it to work without additional antenna tuning at most frequencies. However, for optimal VSWR at certain frequencies, using an antenna tuner will yield better results.

Q: The antenna is so long, how do I secure it while driving? Won't it easily hit obstacles?

A: You definitely need to be careful. A sturdy, dedicated heavy-duty magnetic mount or clip-on mount must be used. Be mindful of the height while driving, especially in environments like garages or forests. The material is resilient and will spring back from minor scratches.

Q: My car has a metal body, is this necessary?

A: Yes. The vehicle's metal body is an important component of the antenna system, serving as the ground plane. Performance will be severely degraded when used on non-metallic vehicles (such as those with all-plastic roofs).

Q: Does it perform as well at 7MHz and 28MHz?

A: The antenna's VSWR remains good (<1.5) across the entire 7-50MHz band, but efficiency varies with frequency. The physical size is electrically small at lower frequencies (e.g., 7MHz), resulting in relatively lower efficiency; at higher frequencies (e.g., 28MHz), it is more resonant and more efficient.

Q: With a maximum power of 120W, are there any special installation requirements?

A: Ensure all connectors are tightened and making good contact. Poor contact at high power can generate high temperatures, damaging connectors or the radio. Using high-quality cables and bases is crucial.

Q: Can this antenna receive AM/FM radio broadcasts?

A: No. AM broadcast frequencies are approximately 530-1700kHz, and FM broadcast frequencies are approximately 88-108MHz, both outside the GLB750's 7-50MHz operating range.