716-434-9216
View Cart | Item(s)
The Daiwa CS-401 is a popular, heavy-duty 4-position RF coaxial switch for amateur radio and commercial use, handling up to 2.5kW PEP, offering low insertion loss (<0.2dB) and high isolation, featuring SO-239 connectors and a grounded-when-inactive design for lightning protection, allowing selection between four antennas/accessories from a single radio port.
Key Features & Specifications:
- Positions: 4 (for 4 antennas/devices)
- Frequency Range: DC to 500 MHz (or 1.8-600MHz, depending on source)
- Power Handling: 2.5kW PEP (Peak Envelope Power), 1kW CW (Continuous Wave)
- Connectors: SO-239 (UHF female)
- Insertion Loss: Very low, typically <0.2dB
- Isolation: High, over 60dB at 200 MHz
- Grounding: Inactive ports are automatically grounded for protection
- Construction: Solid metal cavity for high efficiency and stability
How it's Used:
- You connect one radio (transceiver) to the common input/output.
- You connect up to four different antennas, dummy loads, or other devices to the numbered output ports.
- You rotate the dial to select which of the four connected items the radio communicates with.
Benefits:
- Versatility: Easily switch between multiple antennas without re-cabling.
- Protection: Grounding inactive ports helps protect gear from static buildup or nearby lightning strikes (but not a direct hit).
- Performance: Designed for low signal loss and excellent isolation between ports.
1 Year Warranty
