Powerful transmitters operating on medium and long waves may
cause considerable interference in the reception of short-wave
signals. A high-pass filter to suppress the interfering signals is, of
course, the solution. Since, however, the active antennas to which
such a filter must be added are normally out in the open, it is
desirable to be able to control the filter remotely.
Downloading of this magazine article is reserved for registered users only.
Discussion (0 comments)