You can feed two different audio-signals into LINGUA (e.g. SW and VHF). The preferred audio can be selected by the switch "SOURCE". It does no matter which kind of modulation had been used for the audio-transmission (SSB, FM, AM or whatever).
At the audio-out jacket of LINGUA you can plug your station-speaker or a headphone. - LINGUA can be DC-powered by your 12V / 13,8V - power-supply.
LINGUA is cabled within seconds. Thereafter you experience the amateur radio with other eyes or better said with other ears: nearly without any QRM and QRN. Be sure: it is a new audio experience, especially when you suffer of strong QRM!
LINGUA specification
LINGUA versions
LINGUA manual and plug-set ST4 manual