TR switch

From International Dictionary of Marine Aids to Navigation
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Alternative term: TR box

A switch, frequently of the gas discharge type, employed when a common transmitting and receiving antenna is used, which automatically decouples the receiver from the antenna during the transmission period.

Reference: I.R.E.

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

charge current




International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM