AST878DM Amplified Ceramic Desk Base Microphone
AST878DM Amplified Ceramic Desk Base Microphone4 Pin CB Microphone Plug

Astatic AST878DM Base Statio CB Microphone


Model: AST878DM


In stock
30 days

The Astatic AST878DM is a high quality amplified ceramic desk mic with a tough housing for industrial and commercial use. It includes standard push-to-talk and lock-to-talk buttons (A lock-to-talk button will lock the transmit on until pressed again).  This CB microphone requires a 9 volt battery for operation (not included.)



This CB microphone has a standard 4 pin plug and a ceramic cartridge.  It is compatible with any CB radio wired for a standard 4 pin plug, including the Galaxy DX2547 Base CB Radio.


Astatic AST878DM Features

  • Requires 9v battery (not included)
  • Wired 4pin Cobra/Uniden
  • PTT and Lock buttons
  • Volume adjustment
  • Rugged resin housing



  • Omni directional
  • 2' coiled cable and 6 conductor w/shield
  • Output -44dB  at 1 kHz
  • Impedance 5000 Ohms max
  • Recommended load of 100 ohms and up.



CB Microphones

4 Pin


Not as good as some of the older base mics, but it does the job. Good audio.

Type the characters you see in the picture above.