The N2EME SDR Switch 0–450 MHz 100W is a premium RF switching solution for amateur radio operators seeking seamless integration of Software Defined Radios (SDRs) into their existing setups. Engineered for single-receive configurations, this switch allows your SDR to function as the primary receiver while maintaining full transmit capabilities on your HF, VHF, and UHF transceiver. Key Features: Frequency Range: 0–450 MHz Power Handling: Up to 100W Low Insertion Loss & High Isolation: Ensures minimal signal degradation and protects sensitive RX components Single RX Design: Ideal for setups where the SDR serves as the sole receiver Compact and Durable: Built with high-quality components for long-term reliability Operational Overview: Receive Mode: Antenna signal routes from the ANT BNC to the RX BNC, safeguarding all RX-only components. Transmit Mode: Upon PTT activation, the switch reroutes the transceiver's output directly to the antenna, isolating and protecting the SDR and RX chain. Power Loss Scenario: In the absence of 12VDC power, the switch defaults to a safe state, connecting the transceiver directly to the antenna, thereby preventing potential damage to RX-only components. Why Choose the N2EME SDR Switch? Optimised for Weak Signal Work: Designed by VHF/EME operators to ensure optimal performance without compromising signal integrity. Enhanced Station Performance: By dedicating the SDR as the primary receiver, operators can leverage advanced features like panadapter displays and improved signal processing. Ease of Integration: Compatible with popular transceivers and SDRs, facilitating straightforward installation and operation.