Yaesu FTM-400DR Dual-Band Mobile Base Station

Technical Specifications

• Frequency Coverage (TX/RX): Dual-band transmission covering 144–148 MHz (2m) and 430–450 MHz (70cm). Includes wideband general coverage receiver modules.
• Supported Protocols: Advanced C4FM Digital Voice (Yaesu System Fusion) and standard analog FM modes.
• RF Power Output Capabilities: High power levels pushing 50 Watts / 20 Watts / 5 Watts selectable on both bands.
• Display Interface: 3.5-inch full-color TFT high-luminance touchscreen controller panel.
• Advanced Receiver Layout: True independent dual-receiver architecture allowing simultaneous V+V, U+U, V+U, or U+V monitoring.
• Integrated Location Hardware: Built-in GPS smart antenna module handling real-time APRS map tracking, waypoint navigation, and smart routing.
• Chassis Thermal Design: Heavy-duty aluminum die-cast heat-sink backing with a built-in automated cooling fan matrix.
• Power Draw Parameters: Draws up to 12 Amps peak at 13.8V DC under full 50W transmission loads.

Station Role

The Yaesu FTM-400DR is configured as a permanent tabletop base station unit on the W8USR operating deck. Drawing its energy from an external regulated console supply, it delivers high-power 50-Watt digital C4FM voice tracking and analog FM repeater bridging to the station's main outdoor dual-band antenna system.

History with Radio W8USR

Brought in to anchor our fixed-station VHF/UHF digital voice tier, the FTM-400DR has been exceptionally reliable. Its large color touchscreen interface and dual-receive features make it a favorite among control operators for managing emergency tracking channels and monitoring local linked repeater rooms directly from the central desk console.