- Sections and slides rewritten in Swedish; German law and institutions replaced by Swedish/CEPT/ITU equivalents (PTS, SSA, PTSFS 2025:1, SSMFS 2008:18), unverified statements marked "% TODO VERIFY" - New toc: INSTEG, HAREC, UPPGRADERING; section idents are Swedish (see ident-map.tsv) - Exam-question tags, BNetzA question pool, solutions and the German SWL course removed - Static pages, snippets, applets, READMEs and image alt-texts translated - TikZ labels translated; SVG drawings regenerated (drawing 689 still fails to build upstream: it references a missing photo) - Changed from the original: not endorsed by DARC e.V., SSA or PTS Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
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524 B
* *Notchfilter* eller spärrfilter
* Smalbandigt filter
* Undertrycker en bestämd LF-frekvens
* Kan realiseras i LF- eller FI-delen
[picture:242:frequenzverlauf_notchfilter:Filterkarakteristik hos ett notchfilter]
* Tar bort en störande signal, t.ex. en bärvåg
* I FI-delen kan starkare störsignaler undertryckas effektivare
* Påverkar då AGC mindre
* Notchfilter kan ofta justeras i radion (frekvens, bandbredd, filterkarakteristik)
* Finns också som auto-notchfilter