SDR Upconverters for HF and VHF Reception

Find upconverters designed to extend the frequency range of your Software Defined Radio, enabling reception of lower frequency bands.

David
Reviewed by • Senior RF Engineer & Technical Editor March 2026

Upconverters are essential devices for many software-defined radio (SDR) operators, allowing them to receive signals on HF bands using receivers primarily designed for VHF/UHF frequencies. These converters shift lower frequency signals up to a range that an SDR dongle, like an RTL-SDR or Funcube Dongle, can process. This capability significantly expands the operational range of many affordable SDR setups, enabling reception of amateur radio activity across a wider spectrum.

Hams looking to expand their SDR station capabilities can find various upconverter solutions, from pre-built units to kits for homebrew projects. Many commercial vendors, such as Nooelec and DX Patrol, offer a range of SDR accessories including upconverters. These devices are crucial for monitoring HF propagation, listening to distant DX stations, and exploring various digital modes that operate below the native frequency range of common SDR receivers.

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