Yaesu FT-891 HF/50MHz All Mode Mobile Transceiver

Yaesu FT-891 HF/50MHz All Mode Mobile Transceiver

The Yaesu FT-891 is a rugged, ultra-compact HF/50MHz mobile transceiver engineered for operators who want outstanding receiver performance in a travel-friendly form factor. Whether mounted in a vehicle or used as a portable/base setup, the FT-891 delivers dependable 100W output, exceptional DSP filtering, and the robust build quality Yaesu radios are known for.

Featuring a high-speed 32-bit floating-point DSP, triple-conversion receiver architecture, and a built-in 3 kHz roofing filter, the FT-891 is optimized for clear signal reception, even in challenging band conditions. The detachable faceplate, intuitive controls, and native USB connectivity make it flexible enough for mobile operators while still offering all the refinement expected from a modern HF transceiver.

Key Features

✔ High-Performance Receiver Architecture

• Triple-conversion superheterodyne design
  

• 1st IF at 69.450 MHz for superior signal handling
  

• Factory-installed 3 kHz roofing filter enhances adjacent-channel performance
  

• TCXO with ±0.5 ppm stability (–10°C to +50°C)
  

The result? Clean, stable reception with reduced drift and improved weak-signal performance.

✔ Powerful 100W Output

• 100W SSB/CW/FM, 25W AM
  

• Dual internal thermostatically controlled cooling fans
  

• Die-cast chassis for efficient heat dissipation
  
  

Engineered for reliable, sustained performance during long operating sessions.

✔ Advanced IF DSP Processing

• 32-bit floating-point DSP (up to 3000 MIPS)
  

• DNR (Digital Noise Reduction) for suppressing random noise
  

• DNF (Auto Notch) for eliminating beat tones
  

• CONTOUR and APF functions for targeted interference reduction
  

This DSP suite significantly reduces listener fatigue on crowded HF bands.

✔ Native USB Connectivity

A single USB cable enables rig control through a virtual COM port—no external interface required. Perfect for logging, CAT control, and digital-mode setups.

✔ Operator-Friendly Interface

• 1.6" (41mm) main tuning dial with adjustable torque
  

• Pop-up menu system for fast navigation
  

• Multi-function knob for mode, menu, and frequency control
  

• Three programmable front-panel buttons
  

• Large TX/RX indicator LED
  

Designed to keep mobile operation smooth and distraction-free.

✔ ATAS System Compatibility

Fully supports ATAS-25 and ATAS-120A Active Tuning Antennas for seamless, automatic tuning—ideal for mobile or field operation.

✔ Optional FC-50 Antenna Tuner

The FC-50 external ATU (sold separately) integrates directly with the FT-891 and includes all necessary interface cables.

✔ Ultra-Compact Footprint

• 6.1" × 2.0" × 8.6"
  

• Only 4.18 lbs
   Perfect for mobile installations or compact portable setups.
  

Included Accessories

• MH-31A8J Hand Microphone
  

• Mobile mounting bracket
  

• Power cable (with fused leads)
  

• Operating manual
  

YSK-891 separation kit is available separately.

Technical Specifications

Frequency Coverage

Transmit: 1.8–54 MHz (Amateur Bands Only)
Receive: 30 kHz–56 MHz

Modulation Modes

• CW (A1A)
  

• AM (A3E)
  

• LSB/USB SSB (J3E)
  

• FM (F3E)
  

Tuning Steps

• 2/5/10 Hz (SSB/CW)
  

• 10/100 Hz (AM/FM)
  

Power Output

• SSB/CW/FM: 100W
  

• AM: 25W carrier
  

Impedance

• 50Ω unbalanced
  

Electrical

• Supply Voltage: 13.8 VDC ±15%
  

• Current Draw:
  

• RX: ~2.0A
  

• TX: ~23A
  

Receiver Sensitivity

• SSB/CW (10 dB S/N):
  

• 0.158 μV (1.8–30 MHz)
  

• 0.125 μV (50–54 MHz)
  

• AM (10 dB S/N):
  

• 4 μV (0.5–1.8 MHz)
  

• 1.6 μV (1.8–30 MHz)
  

• 1.2 μV (50–54 MHz)
  

• FM (12 dB SINAD): 0.35 μV (29, 50–54 MHz)
  

Audio

• Max AF Output: 2.5W @ 4Ω (10% THD)
  

• Output impedance: 4–16Ω (nominal 8Ω)
  

Circuitry

• Triple-conversion (SSB/CW/AM)
  

• Double-conversion (FM)