What is a Motorola mx-300?

The MX-300 was a handheld radio , developed by Motorola in 1975. Many different variants of this radio were developed, incuding VHF, UHF and SHF versions, ruggedized versions, crystal operated channels, versions with a frequency synthesizer, and optional Digital Voice Encryption .

What are the different variants of the MX300 radio?

Many different variants of this radio were developed, incuding VHF, UHF and SHF versions, ruggedized versions, crystal operated channels, versions with a frequency synthesizer, and optional Digital Voice Encryption . There are many different variants of the MX300 , making it difficult to describe it features.

What is the MX300 accessory socket used for?

The MX300 has an accessory socket at the left side panel, just below the control panel and above the PTT. On the ruggedized model (MX300-R) it is covered by a protective rubber flap. The socket is used for the connection of a range of microphone/speaker and other accessories.