OPEK CX-301U Coax Switch

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The OPEK CX-301U is a 3-way SO239 coaxial switch designed to let amateur radio operators and antenna enthusiasts route one transceiver to up to three separate antennas without physically swapping cables. It offers a straightforward mechanical switching solution with a durable build suited for both home shack and portable use. Overall, it provides a practical and cost-effective way to manage multiple antenna connections with minimal signal loss.
Key Features & Specs
| Switch Type | 3-position manual rotary coax switch with single-input to three-output routing |
|---|---|
| Connectors | SO239 (UHF female) connectors on all four ports for standard PL259 plug compatibility |
| Frequency Range | Rated for HF through VHF/UHF use, suitable for typical amateur radio bands |
| Isolation | Good port-to-port isolation to prevent signal bleed between unused antenna connections |
| Build Material | Metal housing with a sturdy rotary knob for reliable repeated switching |
| Mounting | Compact desktop or panel-mountable design with a small footprint |
| Compatibility | Works with most HF, VHF, and UHF transceivers using standard coaxial feedline |
Best for: Amateur radio operators and antenna hobbyists who need a simple, reliable way to switch between up to three antennas from a single transceiver without the hassle of manually reconnecting coax cables.