Manually extendable telescoping antenna

Communications: radio wave antennas – Antennas – Rod type

Patent

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343DIG1, H01Q 110

Patent

active

049203541

ABSTRACT:
Manually extendable telescoping antenna for a vehicle or vessel having a continuous core provided in the interior of the antenna to reduce mechanical/wind generated vibration noises. With the antenna extended, the core loosely touches the insides of the hollow telescoping elements and thus dampens and prevents creating a propagation of eigen-vibrations into the vehicle or vessel interior. The preferred core configuration may be a plastic band, plastic coated wire, or hollow or foam-filled plastic tube formed in a helical spiral secured at its lower end to a guide tube and at its upper end to the solid rod upper antenna section.

REFERENCES:
patent: 2179415 (1939-11-01), Mace
patent: 2346728 (1944-04-01), Carlson
patent: 2366299 (1945-01-01), Benschoten
patent: 2456330 (1948-12-01), Scott

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