NA 131

DIN Standards Committee Aerospace

Project

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 812: Return loss (VSWR)

Abstract

This document specifies methods for measuring return loss respectively voltage standing wave ratio (VSWR), in the required frequency range of coaxial cables. The return loss is used for quantifying the level of the reflected signal due to an impedance mismatch between the cable and the reference impedance and due to structural variations of the impedance along the cable. It is intended to be used together with EN 3475 100 and EN 50289 1 11. NOTE In particular, correction procedures detailed in EN 50289 1 11:2016, Annex B are important to minimize negative effects of cable preparation in the purpose of high frequency range measurements.

Begin

2025-01-03

WI

04004949

Planned document number

prEN 3475-812

Responsible national committee

NA 131-04-02 AA - Electrical cables  

Responsible european committee

ASD-STAN/D 2/WG 2 - Cables & Stripping Tools  

draft standard

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 812: Return loss (VSWR)
2025-05
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previous edition(s)

Aerospace series - Cables, electrical, aircraft use - Test methods - Part 812: Return loss (VSWR)
2009-08

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Contact

M. Sc.

Judith Mengel

Am DIN-Platz, Burggrafenstr. 6
10787 Berlin

Tel.: +49 30 2601-2285
Fax: +49 30 2601-42285

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