00000cam 2200000zi 4500 9.958401 CaOODSP 20251219082213 m o d f cr bn||||||||| 251219e19761014oncd obt f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre En57-58/834-1976E-PDF Klein, G. L., author. An evaluation of the RD-65A automatic tracking radiotheodolite / by G.L. Klein = Évaluation du radiothéodolite RD-65A de poursuite automatique / par G.L. Klein. Évaluation du radiothéodolite RD-65A de poursuite automatique Downsview, Ontario : Environment Canada, Atmospheric Environment Service, 14 October 1976. 1 online resource (21 pages, 2 unnumbered pages) : graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier Technical memoranda, 0708-2878 ; TEC 834 ISSN of series supplied from ISSN Portal. Incorrect ISSN (0068-7804) printed in this publication. Digitized edition from print [produced by Environment and Climate Change Canada]. Imperfect: Abstract and résumé page duplicated and page 1 is missing from this digitized edition. Includes bibliographical references (page 12). "The RD-65A is a 1680 MHz Automatic Tracking Radiotheodolite which is functionally very similar to the standard GMD-1B, the system currently used in Canada to obtain upper level winds. Since the RD-65A is smaller and less expensive than the GMD-1B, considerable interest has been generated in its capabilities. This report summarizes our evaluation of the RD-65A; briefly, our results indicate that the RD-65A has a tracking accuracy of 0.1° and a limiting angle of 15 degrees, making it very similar in performance to the 403 MHz windfinding system, i.e., the Metox or SCR-658"--Abstract. Includes abstracts in English and French. Winds Measurement Equipment and supplies Evaluation. Vents Mesure Appareils et matériel Évaluation. Technical reports lcgft Rapports techniques rvmgf Canada. Atmospheric Environment Service, issuing body. Technical memoranda (Canada. Atmospheric Environment Service) 0708-2878 ; TEC 834. (CaOODSP)9.934501 PDF 868 KB https://publications.gc.ca/collections/collection_2025/eccc/en57/En57-58-834-1976-eng.pdf U.D.C.: 551.508.85 672672428