Electronics

Can you hear me now?

by Sail Staff, Posted January 12, 2009
Having a VHF radio on a boat is always a good idea. It allows you to communicate with other boats, marinas, and rescue services if necessary. I have two on my boat, one a handheld and the other a fixed set. Fixed sets have a maximum radiated power output of 25 watts, while handhelds normally have a maximum output of 5 watts. The more power a transmitter has, the farther its signal can travel. The

Winter Battery Maintenance

by Peter Nielsen, Posted January 27, 2010
A few years ago, I left my boat’s two lead-acid batteries on board over winter. It wasn’t intentional—an early snowfall led me to cover the boat up sooner than anticipated, and I just never got around to taking the batteries off.After three months of freezing New England winter, I suddenly remembered they were still on board. I snuck down to the yard one mild Saturday and hooked the
There are times when we find exactly what we aren’t looking for, and this was one of them.I was tired of technology and wanted to write a sailing story about the good old days, when a Windex was high-tech and real navigators dealt with celestial fixes and high-anxiety uncertainty. What better place to look for such things than at the annual Annapolis Classic Wooden Boat Regatta? Ambling

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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