Yaesu MD-100A8X desk Mic

The Yaesu MD-100A8X is a dynamic desktop microphone designed for Yaesu HF transceivers. Its key specifications are:

• Type: Dynamic microphone
• Microphone impedance: Approximately 600 Ω
• Frequency response: Optimized for amateur radio SSB communications (voice)
• Audio controls:
  • Low-cut filter
  • High-emphasis (treble boost) switch
  • PTT (Push-to-Talk) switch with transmit lock
• Connector: 8-pin round Yaesu microphone connector
• Power: No external power required (dynamic element)
• Construction: Heavy die-cast desktop base with flexible gooseneck microphone
• Compatibility: Works with many Yaesu HF transceivers, including models such as the FT-450D, FT-857D, FT-897D, FT-950, FT-991/991A, FTDX series, and others that use the standard 8-pin Yaesu microphone connector. Compatibility depends on the specific radio model.

Dimensions and weight

• Height: Approximately 310 mm (12.2 in)
• Base: Approximately 120 × 175 mm (4.7 × 6.9 in)
• Weight: Approximately 1.1 kg (2.4 lb)

The MD-100 is well regarded for its natural-sounding audio and built-in tone shaping, allowing operators to tailor transmit audio for better intelligibility on SSB. It has since been discontinued, making good used examples popular on the amateur radio market.