TY - GEN AU - Dorothy A Williamson C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1960-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.43 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1960 TI - A Summary of VHF and UHF tropospheric transmission loss data and their long-term variability: ER -