A waveform monitor comprises: means for converting a compressed video signal into uncompressed parallel data; means for converting the parallel data into waveform display data; means for analyzing a transmission status of the compressed video signal and generating analysis data; and means for displaying the waveform display data and the analysis data simultaneously. According to the method, the unmolded, loose powder is filled, particularly poured, into the opening of a bag which is formed from a high-barrier film and is open on one side. The CMC anchor may be a honeycomb or other extending-into-and-interlocking geometry. A string bed is formed of a plurality of cross string segments and a plurality of main string segments. By adjusting the adjustable electrical components, the storage and processing circuitry can tune the adjustable antenna system to ensure that the adjustable antenna system covers communications bands of interest. The catch member may be selectively locked into one of the positioning holes of the casing by an urging action of the elastic member.