QRO.cz 4-Way Active PTT Splitters are compact keying relays designed to distribute a single PTT (Push-To-Talk) signal to up to four independent devices— Typically used between a transceiver amplifier keying output and other accessories without delay or signal degradation. It’s the ideal solution when multiple devices need to be triggered simultaneously from one PTT source.

Built with optocoupler isolation, these PTT Splitters protect 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 Active PTT splitters ensure safe and reliable operation.

Key Features:

• Simultaneous PTT Control for Multiple Devices: Effortlessly splits a single PTT signal to control up to four devices—perfect for managing amplifiers, transceivers, or switching systems in complex station setups.

• Optocoupler Isolation for Maximum Protection: Each output is optically isolated, safeguarding your transceiver from voltage spikes or grounding issues caused by connected accessories.

• Plug-and-Play with No Delay Switching: Fully assembled and ready to use, the splitter ensures instant, delay-free PTT activation across all outputs—ideal for time-sensitive RF operations.

Available in two versions:

• Fully assembled in a durable enclosure

• Bare (assembled) PCB only version for custom installations

Package Contents:

QRO-PTT4BOX

• (1) Active PTT Splitter – With Enclosure ( PCB module installed in a metal enclosure)

• (1) DC Power Cable

• (4) Self Adhesive Foot Pads

Additional Feature and Specifications:

• DC Power Supply: 9-15VDC, Typ. 65mA

• 4 Output FET Switch - 50VDC 500mA

• Optocoupler Isolators: Protecting TRX PTT port

• PTT LED Indicator

• Connectors: RCA connectors

• Minimal Delay

• Compatible with 5V PTT logic (OM-power)

• Input PTT Logic: Compatible with 5V and more

• Input PTT Logic: Active when grounded

• Input PTT Logic Current: 40mA typical

• PCB Dimensions: 1.97 x 1.98in. (50x50.4mm)