The CO-301N is a professional-grade, heavy-duty 3-way coaxial switch designed to let radio operators route their RF signals seamlessly between up to three different antennas or transceivers. Engineered for clean electrical performance, this high-quality selector operates smoothly at frequencies up to 800 MHz, making it the perfect routing solution for HF, VHF, and UHF amateur radio stations, commercial dispatch centers, and maritime communication setups. By using a mechanical selector instead of splitting cables, the CO-301N maintains maximum signal integrity with virtually no insertion loss.
At the heart of the CO-301N is its low-loss N-Type female connector configuration. These gold-plated and silver-plated contact surfaces ensure stable, weatherproof connectivity and superior performance compared to standard UHF connectors. The switch is built to handle substantial RF power, supporting up to 1000 Watts PEP in the lower HF bands (up to 150 MHz) and stepping down to a highly reliable 150 Watts PEP in UHF ranges up to 1500 MHz. Designed for high isolation (60dB at 500 MHz) and exceptionally low Voltage Standing Wave Ratio (VSWR of 1.1:1), this switch prevents signal bleed-through and ensures your expensive transceiver is shielded from reflective feedback.
Housed in a rugged, cast metal enclosure weighing 575 grams, the CO-301N is designed to last a lifetime in active radio shacks or mobile stations. Its compact footprint of 84 x 95 mm features integrated mounting holes, allowing you to secure the switch firmly to a workbench, radio rack, or partition wall. A heavy-duty tactile rotary lever provides crisp, mechanical feedback when switching channels. Important safety notice: Never reposition the rotary switch while the radio is actively transmitting, as this can cause permanent electrical arcing and damage to both the switch and your transceiver. For PL-259/UHF installations, the alternative PL-connector version (Ref. 0485) is also available.
Key Features
- 3-Way Antenna Switching: Route a single transmission feedline seamlessly to three separate antennas or transceivers.
- Premium N-Type Connectors: High-quality N-female connectors offer exceptional low-loss performance and weather resistance.
- High Power Handling: Supports up to 1000 Watts PEP at frequencies under 150 MHz for high-power base stations.
- Excellent Signal Isolation: Features 60dB isolation at 500 MHz to prevent crosstalk and bleed-through between connected ports.
- Ultra-Low VSWR: Rated at an exceptional 1.1:1 up to 500 MHz to maintain system efficiency.
- Rugged Metal Housing: Heavy-duty 575g cast aluminum body protects delicate internal contact points and rejects external RFI.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Designation | CO-301N |
| Product Type | 3-Way Mechanical Coaxial Antenna Switch |
| Connector Type | N-Type (Female) |
| Frequency Coverage | Up to 800 MHz (operational up to 1500 MHz) |
| Nominal Impedance | 50 Ohms |
| Voltage Standing Wave Ratio (VSWR) | 1.1:1 (at 500 MHz) | 1.2:1 (from 500 to 1000 MHz) |
| Insertion Loss | 0.1 dB (at 500 MHz) | 0.15 dB (from 500 to 1000 MHz) |
| Signal Isolation | 60 dB (at 500 MHz) | 50 dB (from 500 to 1000 MHz) |
| Power Handling (PEP) | • Up to 150 MHz: 1000 Watts • 150 to 500 MHz: 500 Watts • 500 to 1000 MHz: 250 Watts • 1000 to 1500 MHz: 150 Watts |
| Alternative Version Available | PL-259 Connector Version (Ref. 0485) |
| Device Dimensions | 84 x 95 mm |
| Net Weight | 575 g |
Package Content
- 1x CO-301N 3-Way Coaxial Switch with N Connectors
- 1x Mount Hardware Sheet
