[RFI] ethernet switch with shielded case or low emission spectrum

Jeff Blaine KeepWalking188 at ac0c.com
Thu Mar 29 02:22:03 EDT 2018


In the process of overhauling the shack's wiring, I'm wanting to replace 
my existing ethernet switch with a box that is properly shielded - or at 
least has one with a low emission footprint. Here i'm talking about 
radiation from the box itself - not via the connected ethernet lan cable 
runs.

Unfortunately the houses' home-run location terminates a few feet from 
my shack and so the switch needs to be located there.  I can apply 
ferrite / common mode treatment to the power supply and lan cables that 
connect to the box.  But I also need a box that is properly shielded 
from a ham point-of-view.  The switches I have now are all of the 
plastic-case variety and they all are pretty noisy.

I was hoping someone may have found a "quite" switch that could be 
recommended.  Some of the semi-pro (e.g. Netgear home-office rack mount) 
stuff has metal cases -- but I don't know if that actually means they 
are quieter.

73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com



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