View Single Post
  #12   Report Post  
posted to
John Seager John Seager is offline
external usenet poster
First recorded activity by BoatBanter: Sep 2006
Posts: 19
Default Wind speed instrument: what voltages should it produce?

"Steve Lusardi" wrote in message
I am not sure this is relevant, but often more than one data inut can be
transmitted on a single wire like speed and azimuth, where speed is
derived as an ac signal (pulse rate) It could be riding on top of a dc
reference voltage used in azimuth calculation. These two pieces of
intelligence could easily be separated using capacitive coupling at the

This starts to sound a bit more complicated to this electronically
challanged sailor! But I think I get your point - this would mean that a
steady DC voltage would prove that the wire is connected (to something) but
an absence of AC pulse might imply that the anemometer has failed?