The SignaLink SL-1+ provides all the features of our original SignaLink Model SL-1, "plus" more! With full support for ALL radio Mic, Data, and Accessory Ports, the SL-1+ can be attached to the radio's Mic jack, or to the back of the radio (Data or Accy Port), so that you can keep your microphone plugged in! This permits easy switching from Voice to Digital operation (great for SSTV!), and provides the same functionality as other more expensive interfaces.
In addition to supporting all available Digital modes, the SignaLink SL-1+ supports the latest Voice modes such as Internet Repeater Linking (EchoLink®, VOIP, etc.), Remote Base, and Voice Keyer operation. Performance on these modes has been optimized by improving the sensitivity of our Auto-PTT™ circuit, and by the addition of a front panel selectable Variable Transmit Delay. This variable delay is set at the factory for typical Voice applications, but can easily be adjusted to suit the operator's preference.