Passive repeater

A passive repeater or passive radio link deflection, is a reflective or sometimes refractive panel or other object that assists in closing a radio or microwave link, in places where an obstacle in the signal path blocks any direct, line of sight communication.

Compared to a microwave radio relay station with active components, a passive repeater is far simpler and needs little maintenance and no on-site electric power. It also does not require additional frequencies, unlike active repeater stations which use different transmit and receive frequencies to prevent feedback. The corresponding disadvantage is that without amplification the returned signal is significantly weaker.

Passive radio relay link deflection systems in the vertical level can be realized by receiving the signal with a parabolic antenna and leading it through a waveguide to a second parabolic antenna, where it is radiated. For passive microwave radio relay link deflections in the horizontal plane, flat surfaces of metallic material are used, arranged so that the angle of incoming beam corresponds to the angle of the outcoming signal. The resulting structure resembles a billboard.

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Latest News for: passive repeater

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Some are one-and-done (like using a Standard Windows account), some are repeated (like keeping software updated), and some are passive (like never clicking unsolicited links), but they’re all simple.

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Jump To. AbilitiesPlaying as Mr. FantasticElasticity Gauge ... Suggested Reading. Live Forever in the Universe of 'New World. Aeternum' ... If it hits, he will shoot back up to repeat until he misses ... Finally, he has a passive ability, Elastic Strength.

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But Alliance Party deputy leader Eoin Tennyson said Mr Benn cannot be a “passive observer” over the issue of reform ... cycle of crisis and collapse, which have damaged them repeatedly.

Community activist accuses Surprise cop of assault in free speech civil rights case

Azcentral 30 Jan 2025
"That would be your definition of passive resistance, and she repeatedly said to the officer she was not leaving and that he was not allowed to touch her," Hernandez said in August.

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Pinkham’s Vegetable Compound was the solution ... Lydia E ... Dr ... Robert F ... “In fact, they have taken an extremely passive, inactive approach.” Experts have repeatedly argued that the FDA needs more authority to investigate and act on supplements, not less.

Inmate dragged backward across cell floor by a rope sues Washington state sheriff's office

Times Union 29 Jan 2025
District Court in Tacoma, Washington. "This lawsuit aims to shine a light on these cruel practices and demand accountability." ... He took small steps backward and then stood passively as a deputy appeared to repeatedly point for him to move back ... .
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