When you think of directional ham radio antennas, you probably think of a ... it is far more practical than mounting the elements on a boom. [DXCommander] shows us his 40 meter two-element ...

Dielectric Labs Inc. (DLI) introduces a series of surface mount directional couplers designed to offer a turnkey ... applications including signal monitoring and measurement, forming antenna beams, ...

The KDS-30-30 is a compact bi-directional coupler from Synergy Microwave for applications in high power antenna forward signal monitoring ... These new directional coupler models are housed in surface ...