@misc{1185961, author = {Robert T Adair}, title = {A precision 30 MHz waveguide-below-cutoff attenuator with an absolute electronic readout ::NBS Model XII}, year = {1976}, month = {1976-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.IR.76-833}, language = {en}, }