Mark Willis wrote:
> A safety tip I'll add;  Shorting the firing leads except when launch
> is imminent isn't a bad idea.

Assuming of course that you have used twisted pair all the way from the
point of short to the fuse, and you are certain there are no large
sources of EMF around.

I'd heard that explosives experts do _not_ short the cable at the end
they are rolling out, because that creates a loop circuit in which any
radio energy will just _have_ the be consumed by the detonator.

Just rumour.  I'm not qualified to advise on this.

--
James Cameron                                    (cameron@stl.dec.com)
Digital Equipment Corporation (Australia) Pty. Ltd. A.C.N. 000 446 800