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
Jim Liggett of Cornish, New Hampshire, asks:"I am installing a lightning- ground system and plan to use a 5/8in rod extending at least 6in above my VHF antenna. Does it matter whether the pointed rod is solid copper or can it be copper-coated steel, as is often used for grounding rods on shore? If the steel rod will work equally well, is there a good way to keep the tip
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
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
Diesel mechanics is not a difficult subject. In fact, all owners of diesel-powered boats can—and should—learn the fundamentals of operating and maintaining their engines. To run well, a diesel engine requires clean fuel, clean oil, and a lot of air. Routine maintenance will virtually guarantee years of trouble-free service and will keep your busy mechanic at bay.How a diesel engine works,