Weinschel’s 980 series of mechanical phase shifters allow for nominally linear phase adjustments over the dc to 12 GHz frequency range (depending on model).
Each unit contains a internal self-locking mechanism that eliminates the need for a locking nut which is ideal for phase trimming in densely packaged systems with minimum accessibility.
Other features include SMA connectors, choice of incremental phase adjustments and units with knobs.
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