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QRO.cz Bias Tee Receive Feedline Voltage Injectors
QRO.cz Bias Tee Receive Feedline Voltage Injectors are engineered to inject DC voltage into a receive antenna system's coaxial cable while isolating the radio port from DC current. This allows you to power remote devices—such as preamplifiers, relays, or switching systems—without the need for separate power lines, simplifying your installation by combining RF and DC over a single coaxial feed. Typically installed at the receiving end of the coaxial cable, the bias tee passes DC power from an external source to the coax line running to the powered device. It uses a feed inductor to deliver DC to the device side and a blocking capacitor to prevent DC from reaching the radio. For added flexibility, bias tees can be used on both ends of the coaxial line to serve as DC input and output points.
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$93.99
QRO.cz 4-Way Active PTT Splitters
QRO.cz 4-Way Active PTT Splitters are compact switching devices designed to distribute a single PTT (Push-To-Talk) signal to up to four independent devices—such as amplifiers, transceivers, or relays—without delay or signal degradation. It's the ideal solution for complex station setups where multiple devices need to be triggered simultaneously from one PTT source. Built with optocoupler isolation, this splitter protects your transceiver's PTT output from potential damage caused by connected accessories. Whether you're integrating power amplifiers, interlock systems, or RX devices, these 4-way PTT splitters ensure safe and reliable operation.
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$76.99