A method for obtaining information about a transmission capability of a transmission link is disclosed. The sequencing procedures can use nucleic acid templates, such as cDNA or PCR amplicons, as a template for sequencing in medium to high throughput format that is cost effective and easily deployed to other clinical microbiology laboratories. Further, the in-plane cross-sectional area of the resistor layer is larger than that of the resonant tunneling diode. Note that a pulse detection method may fix the intermediate potential of the pulse signal at a low level or a high level.