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If you have a wooden
(non-conductive) equipment rack in an RF environment, you need to take
special precautions. Yes, rack rails are metal and should be good
conductors. However, they are paint-covered and often remain
insulated from the equipment they support. An excellent
alternative is to screw a piece of wire-braid to the rear of the wood
rack side and install jumper wires to the equipment as shown to the
left. It is quick and easy to do. The results are worth the
effort ten times over.
The wire-braid used here was removed from a piece of RG-8
coaxial cable. The jumper wires are Belden 8723 two-pair shielded
cable. All five conductors were stripped bare and crimped into the
terminals at each end. I like to use jumpers that are insulated,
as these are, so there is no chance of accidentally shorting something
to ground that is not intended to go to ground. |
