4x6+ RX Splitter - Flexible HF Receiving Antenna Matrix Switch

The 4x6+ RX Splitter is a compact and versatile HF RX antenna matrix switch designed for amateur radio operators who need flexible, dependable antenna routing across the HF spectrum. The switching matrix idea comes from Adi, S55M and the splitter part is basically the proven approach from Steve, VE6WZ - so nothing too fancy, just simple stuff that works.

With six antenna inputs and four independent receiver outputs, it allows you to share multiple antennas among several radios, receivers, or SDRs - all while maintaining proper impedance and clean signal distribution. Internal broadband splitters on each input ensure consistent 50 Ω matching, so your antennas always see a proper load no matter how many receivers are connected.

Performance is excellent from 1–15 MHz and remains usable up to 30 MHz, covering the full HF range. Whether you’re managing antennas in a multi-receiver monitoring setup, switching antennas between rigs, or building a contest or DX station, the 4x6+ RX Splitter keeps your RF routing simple, organized and reliable.

Each of the four outputs also includes an auxiliary input, automatically connected when no antenna is selected on that bus. This design makes it easy to cascade multiple units when your station grows - no extra combiners or external switching required.

All signal paths are switched with mechanical relays for robust, low-loss RF performance and long-term reliability. Front-panel LED indicators clearly show which relays are active, making it easy to see your current antenna paths at a glance.

Key Features

• 6 antenna inputs × 4 output buses for flexible HF signal routing

• BNC RF connectors for quick connect/disconnect

• 4 auxiliary inputs for cascading or default signal paths

• Built-in input terminated splitters for consistent impedance on all paths

• Mechanical relay switching for reliable, low-loss operation

• LED indicators for relay status

• Operating range: 1 MHz – 30 MHz

• Best performance 1–15 MHz

• Expandable and stackable architecture for larger antenna fields

• Compact, rugged design

• Terminal block connectors for easy control signal management

Typical Applications

• Multi-radio or multi-receiver HF stations

• Antenna sharing and switching in the shack

• Monitoring and contest setups

• HF testing and signal routing applications

Pricing and availability

If interested in the 4x6+ matrix, please use the site contact form for inquiries! Paypal and bank transfers are accepted payment methods.