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Showing posts from February, 2026

Coaxial cable - coax aka coaxen

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 Information pertaining to and about co-axial cable and connectors for co-ax. RG402 - semi rigid co-ax similar to that used for many 5ghz FPV antennas. Nicely sized for your avearage SMA connector Type 31 Ferrite - EMI  suppression from 1 to 500MHz. Type 43 Ferrite 43 material Nickel Zinc suitable for wideband transformers up to 50MHz, and suppression of EMI from 3 to 250MHz bands ui=800.  43 material is also ideal for suppression of switching noise from switch mode power supplies by winding the mains power cable through a larger toroidal core multiple times.  These are also recommended for use on HDMI cables from computer video cards to suppress noise in the 3 to 20MHz bands.  Commonly used for construction of 3 to 30MHz Antenna Baluns and 1:1common mode RF chokes.  Refer to the  43 Material Data Sheet  for more information. Co-ax connector crimp sizes sourced from DX Engineering: https://static.dxengineering.com/global/images/chartsguides/d...