m mechanical filter
1Mechanical filter — Figure 1. A mechanical filter made by the Kokusai Electric Company intended for selecting the narrow 2 kHz bandwidth signals in SSB radio receivers. It operates at 455 kHz, a common IF for these receivers, and is dimensioned 45×15×15 mm ( …
2Filter design — is the process of designing a filter (in the sense in which the term is used in signal processing, statistics, and applied mathematics), often a linear shift invariant filter, which satisfies a set of requirements, some of which are contradictory …
3Filter (aquarium) — Aquarium filters are critical components of both freshwater and marine aquaria.cite book |last=Riehl |first=Rüdiger. Editor. |coauthors=Baensch, HA |title=Aquarium Atlas |year=1996. 5th Edn. |publisher=Tetra Press |location=Germany |isbn=3 88244… …
4Filter — may refer to: Chemistry, engineering and materials In chemistry, engineering, or household usage, a device to separate mixtures. See: * Filter (chemistry) * Water filter * Air filter * Oil filter * Pneumatic filter Optics and photography In… …
5Mechanical television — This schematic shows the circular paths traced by the holes in a Nipkow disk. Mechanical television (also called televisor) was a broadcast television system that used mechanical or electromechanical devices to capture and display video images.… …
6Filter — (air) A device that removes contaminants, by mechanical filtration, from the fresh air stream before the air enters the living space. Filters can be installed as part of a heating/cooling system through which air flows for the purpose of… …
7Roofing filter — A roofing filter is a type of filter used in a HF receiver (shortwave radio). It is usually found after the first receiver mixer. The goal of a roofing filter is to reduce the passband of the 1st intermediate frequency (IF) to about 6 20 kHz, so… …
8mechanisches Filter — (n) eng mechanical filter …
9Distributed element filter — Figure 1. A circuit featuring many of the f …
10Electronic filter — Electronic filters are electronic circuits which perform signal processing functions, specifically intended to remove unwanted signal components and/or enhance wanted ones. Electronic filters can be:*passive or active *analog or digital *discrete …
