Terry, VK6ZLT gave another lively talk, this one on grounding in the ham stack. He took us through several scenarios of what to do and what not to do, with great emphasis on an accumulation of small faults add up to big RFI, for example ground loops.
The main reference came from Grounding Systems in the Ham Stack, reproduced from http://kc.flex-radio.com/KnowledgebaseArticle50426.aspx
Bob, VK6PO also gave instruction on how to properly gather up an electrical cable. This may seem a simple job to over-look, but twisted electrical cable can fray and expose live-wires. Tie a piece of cord or velcro at the male socket end, so you have something to tie the cable together at the end. Then start at the female socket end, and coil the cable with a under, then over hand movement, so that the cable is coiled one way, then coiled in the reverse way. Tie the coil off with the cord or velcro, then pat yourself on the back, good job.