Astatic Noise-canceling Mic

The Astatic 636L is a legendary, rugged, noise-canceling dynamic microphone, widely considered an industry standard for CB, Amateur (Ham), and SSB radio communications. It is specifically designed for close-talking, high-background noise environments, such as professional trucking, featuring a 4-pin connection, durable housing, and a 6-foot coiled cord. 

Key Features and Specifications

• Noise Canceling: The microphone utilizes a low-impedance dynamic element designed to cancel background noise, ensuring clear transmission.

• Design & Durability: Known for a heavy-duty, rugged construction with a polyurethane-coated steel grille screen.

• Audio Quality: Tailored for close-talking applications (roughly 1-2 inches from the mouth) to maximize voice clarity while reducing background noise.

• Frequency Response: 100 to 5,000 Hz.

• Connection: Standard 4-pin connector.

• Cord: Durable, flexible coiled cord (typically 6-7.5 feet when stretched).

• Variations: Available in several finishes, including Chrome, Black, Rubberized Black, and USA flag designs. 

The 636L is often used in professional, high-noise vehicles, such as fire trucks and big rigs, to provide clear communication.