The MFJ-1273B Sound Card Radio Interface was designed for use in all sound card to radio applications.

This interface is for those who operate mostly digital modes and do not need a microphone input. Great care was taken to make sure hum, noise, and distortion are minimized or eliminated, insuring the best possible signal from your equipment.

We will start with a brief introduction into the special features that make your Sound Card Radio Interface an important addition to Amateur station with a computer.

Features

• Serial Port: This port allows the computer to control the push-to-talk of your radio.
• Microphone/Radio plug-in jumpers: Internal jumpers program microphone wiring for any brand or model of radio with the appropriate 8-pin connector. There is no need to solder tiny plugs and wires or purchase adapters.
• RFI Proof Circuitry: RF suppression and line isolation virtually eliminates RF feedback, hum, and distortion. An isolation transformer prevents audio ground loops.
• Level control: A receiver-to-sound card drive level control is supplied. No need to adjust sound card level settings every time you change modes.
• Power supply: No external power is needed.
• Rugged Construction: A solid all aluminum cabinet and sturdy construction gives the MFJ-1273Bm mechanical and electrical durability.
• Also included: CD, RS-232 cable, audio cables and microphone cable.