| 摘要 |
A radio frequency device, e.g., an oscillator having multiple modes, e.g., oscillation rates, with means to select a particular mode from a remote selection station. This invention provides transistor operated selection means at the radio frequency site and connection by means of an ordinary non-shielded line to a remote manual selection station with the coupling between the transistor selection means and the remote selection station being free of rf energy and resultant radiation. |
