NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: GPS Out but GLONASS O.K.
From: Richard B. Langley
Date: 2012 Jul 19, 15:13 -0300
From: Richard B. Langley
Date: 2012 Jul 19, 15:13 -0300
A nearby lightening strike can "fry" the sensitive front-ends of radio receivers whether grounded or not. It is recommended that external antennas have "lightening arrestors" and they can divert induced currents to help protect equipment (and the building/vessel) they're attached to. We had a telephone-company-supplied modem in our house that went out of commission ostensibly due to a nearby lightening strike. Phone company replaced it. -- Richard On 19-Jul-12, at 3:04 PM, Alan S wrote: > Richard: > > I realize that the voltage involved in lightening strikes is > extremely high, however re ship's electronics being knocked out by > one such, couldn't the electronics be grounded or otherwise > protected, or does the voltage involved preclude such attention? > > Alan > ---------------------------------------------------------------- > NavList message boards and member settings: www.fer3.com/NavList > Members may optionally receive posts by email. > To cancel email delivery, send a message to NoMail[at]fer3.com > ---------------------------------------------------------------- > ----------------------------------------------------------------------------- | Richard B. Langley E-mail: lang@unb.ca | | Geodetic Research Laboratory Web: http://www.unb.ca/GGE/ | | Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142 | | University of New Brunswick Fax: +1 506 453-4943 | | Fredericton, N.B., Canada E3B 5A3 | | Fredericton? Where's that? See: http:// www.fredericton.ca/ | -----------------------------------------------------------------------------