Re: T.C. Phone Home

Robert Stevens wrote...

> So what?, you must be saying to yourself if you're still reading 
> this.  Well, what it is is that the whole time during this recording, 
> in the background I can hear ZZZZZZZZZZT.......ZZZZT.....ZZZZZZZT...,
> in 400Hz whine whenever my T.C. contacted a ground target with a good 
> hot streamer.  Apparently artificially lifting  ground here with some 
> artificial lightning induced  noise currents in my phone lines.

Question : to what was the coil earthed? Also, were you effectively 
using the building reinforcing as a strike return path?