The Daiwa CS-201 is a compact, manual coaxial antenna switch designed to allow a single transceiver to be connected to multiple antennas, or to route multiple radios to a shared antenna system. Known for its simple, reliable mechanical design, the CS-201 is well suited for amateur radio stations, test benches, and general RF switching applications.

Overview

The CS-201 provides two-position switching between coaxial lines using a rotary mechanical selector. Its passive design requires no external power and introduces minimal signal loss, making it suitable for HF, VHF, and UHF amateur radio use. The switch is housed in a sturdy metal enclosure that helps maintain shielding and reduce RF leakage.

Key Features

• Two-Position Switching
  • Select between two antennas for one radio, or one antenna between two radios
• Manual Rotary Selector
  • Positive detent positions for reliable switching
• Wide Frequency Coverage
  • Suitable for HF through VHF/UHF operation
• Low Insertion Loss
  • Maintains signal strength with minimal attenuation
• Good Isolation
  • Reduces interaction between connected equipment or antennas
• Passive Operation
  • No external power required
• Shielded Metal Enclosure
  • Helps minimize RF leakage and interference

Typical Applications

• Multiple Antenna Selection
  • Quickly switch between HF antennas such as dipoles, verticals, or beams
• Radio Equipment Testing
  • Route signals between radios, dummy loads, or test equipment
• Shared Antenna Systems
  • Allow multiple radios to share a single antenna (one at a time)
• Portable and Mobile Setups
  • Compact size makes it useful for field day or temporary stations

Specifications