Special Features:

The model 409 vlf-hf multicoupler is a compact broadband unit which permits up to 16 receivers or eight receivers to be coupled to a single antenna; a low noise input amplifier provides a gain of 5db and achieves a wide dynamic range over a broad band covering the vlf and hf bands; input circuitry provides protection under high ambient rf field conditions or from nearby lightning strikes

Properties:

A coupler which provides a means of transfer of electrical energy between an antenna and other components. See also line, radio frequency transmission; cable assembly (as modified); and network, impedance matching.