The HF4 Transformer Series has been specially designed to enhance fixed station HF receiving arrays.
Fixed station HF receiving arrays often face high voltages, which are uncommon in typical receiving systems. These voltages can arise from static build-up or lightning-induced electromagnetic fields (EMFs) from nearby strikes.
Our HF4 Series matching transformers, designed for 400 Watt average power, offer an ideal solution for receiving arrays. They effectively mitigate the risk of high voltage damage and provide a crucial DC path to the ground, offering added protection to the receiving system.
Key Features:
- Wide band coverage from 1.5 to 32 MHz, ensuring compatibility with a diverse range of frequencies.
- Perfectly suited for fixed station receiving arrays, elevating system performance.
- Equipped with an internal static drain ground, reducing the risk of damage caused by high voltages.
- A wide selection of balanced and unbalanced impedance ratios available, catering to most antenna configurations, with the option for non-standard ratios upon request.
- Built to withstand the most demanding environments, these transformers feature cast aluminum cases that are fully hermetically sealed, ensuring suitability for military and commercial applications. For EMP-proof operation, no capacitors are incorporated, ensuring reliable performance in critical scenarios.
Enhance your receiving arrays with the HF4 Transformer Series giving you advanced protection and reliable performance across a wide range of frequencies.





