| 摘要 |
FIELD: radio engineering.SUBSTANCE: invention relates to radio engineering, specifically to devices for tensioning antenna beams, and can be used to ensure required boom sag of wires and cables, as well as compensator for stretching forces occurring in wires and cables from impact of wind load. Device includes a cylindrical housing, inside which there is a rod with a disc and a helical cylindrical spring, first and second loops, first loop has a rod with a thread, screwed into threaded hole made in bottom of cylindrical housing, and is connected with antenna beam, second loop arranged on rod is connected with a guy, which tensions antenna beam, on rod there is a graduation scale which corresponds to number of successive forces, pressing spring at application of stretching forces to device.EFFECT: invention provides required boom sag of antenna beams taking into account effect of wind load.1 cl, 1 dwg |
