Electronics

Too Hot to Handle

by Nigel Calder, Posted May 11, 2011
Anyone who has played with electrical gear for any length of time is familiar with the distinctive smell of burned windings. Unfortunately, this smell, wafting out of engine rooms from fried alternators, may soon become familiar to a much wider audience. Why might alternators, generally known for their reliability, become more likely to fail in the next few years?The answer lies in

Compass Truism

by Tim Bartlett, Posted September 14, 2009
Karl Westman of Ocean City, New Jersey, asks:"Is it all right to use magnetic headings on my chartplotter to adjust a new compass?"Tim Bartlett replies:In theory, definitely not. But in practice I'd have to give you a very guarded "maybe." The problem, of course, is that your heading is the direction your boat is pointing in. Your

Signal Fade

by Tim Bartlett, Posted March 19, 2010
Jose Viegas of Lagos, Portugal, asks:"I have a Navman DSC VHF radio, and last summer I began noticing that when I transmit in bad weather, only boats close by can hear me. But I can always clearly receive transmissions from others, near and far. How can I test to see whether the problem is with the antenna, the connection or possibly the radio itself?" Tim
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