>I can't give full details of the project I'm working on, but in overview it's
>a tool for testing decay in telegraph poles by analysing the vibration
>spectrum from the pole when it is stimulated with an impulse.  The FFT is one

Is it not a case where you just record the sound and analyse it later in the
office? does it really need to be analysed on site. I would have thought a sound
recording with pole ID# would have been sufficient. with high performance
analyses later.