Application Note
DFG Directional Microphone
Background
DFG (Patent Pending) is a new directional microphone series based on the omni‐directional FG series. The DFG
front sound port is on the surface opposite the terminal pads – same as for the FG series. The rear sound port is
composed of a plurality of slots along the diameter halfway along the side.
Terminal Pads
Front Sound Port
Rear Sound Ports
DFG is currently available in three models:
Model
Polar Pattern
Comment
DFG‐30445‐000
Cardioid
Internal delay ≈ external delay
DFG‐30852‐000
Super‐cardioid
Internal delay
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