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4O3A Amplifier Accessories
4O3A 1A2R Radio Switches
The 4O3A 1A2R Radio Switch is engineered to allow a single amplifier to be safely shared between two radios, making it an ideal solution for SO2R (Single Operator Two Radios) contesting or multi-radio station setups. It uses a "first PTT wins" logic, ensuring that only one radio can access the amplifier at a time, preventing signal conflicts and potential equipment damage. Each radio's PTT control can be independently disabled via a dedicated switch, offering added flexibility during operation. Once installed, the switch eliminates the need for manual rewiring—your amplifier remains permanently connected and ready. In the event of a failure during SO2R operation, the amplifier can be quickly reassigned from Radio B to Radio A, providing a reliable backup path.
Not Yet Reviewed
$515.99
4O3A Switchable 3:1 Coaxial Power Splitter/Combiners
4O3A Switchable 3:1 Coaxial Power Splitter/Combiners can be used to split power between one, two, or three antennas/directions, or to combine two or three antennas. They are broadband, and capable of operating from 1.8–30MHz, with excellent matching and a well-designed PCB and circuitry. The PS-3000RX can be controlled using Station Genius or any manual switch controller that provides +12VDC for antenna selection. The SPLIT relay inserts a 50-to-22-Ohm transformer for matching when using two or three antennas.
Not Yet Reviewed
$549.99