Marine Electronics

Although the Icom GM1600 marine VHF handheld radio is not meant for use as a recreational marine VHF, Practical Sailor was interested in determining whether the unit’s survival-oriented design might make it a good choice for inclusion in a life raft or ditch bag. We were also interested in comparing its specs to another marine electronics product, the Standard Horizon HX850S VHF handheld, one of the top picks from our most recent series of tests (April 2009, July 2009, October 2009, December 2009).

There are a variety of wire types that exceed government and industry standards for onboard wiring. Because these types of wire can be 10- to 15-percent less expensive than high-quality boat cable, Practical Sailor wanted to determine whether any of these other options would be acceptable for the cost-conscious sailor.Using a moisture chamber designed to mimic years of use in a harsh marine environment such as a bilge, PS's test focuses on the durability of tinned wire, non-tinned wire, and various wire connectors. It also examines whether using a corrosion-inhibiting product could help extend the life of these wires and connections. The test led to some definitive conclusions on which wire types are best in specific onboard uses, and also showed that long-term wire protection begins with well-sealed connections. Our July 2010 issue reported the six-month results, and here, we offer the one-year update.

Every November, Practical Sailor editors celebrate the impending holiday season by reviewing gift ideas for the sailors on your list-or to add to your wishlist. This years wrap-up covers a range of interests and includes something to fit every budget. Looking for a new gizmo for the gadget junkie? Check out solar-powered, water-resistant Eton Soulra sound system, which can play most MP3 players and iPods, iTouch and iPhones while charging them. Or take a look at the SolarTech SolarPulse, a solar-powered device that charges and maintains a ship's batteries. The featured galley goodies from Galleyware and JetBoil will make practical gifts for those galley goddesses, and the Sailor's Solutions wireless remote switch for 12-volt devices is a good stocking-stuffer for creative boat owners and those looking for convenience.

Ordinarily Practical Sailor is loathe to apply a $100 battery-operated solution to a problem easily solved with a chunk of lead and some 3/8-inch line. However, portable depth sounders take the leadline to the next level. Resembling small flashlights, these handheld sounders are designed to be portable, easy to use, and reliable. They are good tools for probing creeks and narrow passes in a dinghy, and also can serve as backups to a primary sounder. This series of tests took a look at the Hawkeye 22PX from Norcross Marine and the Speedtech Depthmate SM-5A. On-the-water testing comprised a series of six tests in specific locations. Each unit was tested in murky shallow waters with a soft mud bottom; moderately clear waters with grass bottom; and clear waters with sand bottom. Testers also evaluated whether the sounders could read through hull materials, their durability and waterproofness, and whether their digital displays could be read in bright sunlight and at night.

Letters to Practical Sailor, October 2010. Subjects include an owner's comments about MacGregor boats, digital maps, teak cleaners, props and adhesives.

Joe and Lee Minick added an Automatic Identification System (AIS) receiver to the nav station of their Mason 43, Southern Cross, and have used it for several years in some of the most heavily traveled waters of the world. Required on large commercial vessels, AIS devices add a whole new dimension of collision avoidance, transmitting dynamic information about a vessels speed, course and position plus static information including a vessels name, call sign and Mobile Marine Service Identity (MMSI). With a Class A AIS and a more recent Class B AIS system for small craft, AIS changes the landscape in marine navigation. The Minicks report in Practical Sailor proves how useful AIS can be for cruisers and other small boaters.

I’ve got an old manual anchor windlass with a badly corroded gypsy that needs to be replaced. There is a 1:1 bronze "cross" on the outside of the gypsy—where the lever fits to turn it when not using the geared mechanism. Unfortunately, I can’t figure out how to get the bronze cross off, which needs to happen in order to replace the gypsy. There’s a grease zirk/fender washer on the outside of the cross, but unscrewing it still doesn’t get the cross off.

Letters to the editors of Practical Sailor in July 2010 include questions and comments about mildew, galley blenders, teak cleaners, online captains courses and personal hydration.

While it sometimes seems marine electronics marketers are piling on unnecessary features just because they can, anyone who has watched their $300 cell phone disappear over the rail or has missed a call from the boss while they were playing hooky on the water can appreciate Cobras newest handheld marine VHF. The MR HH475 FLT BT is a full-feature, floating handheld VHF that can also link up to any Bluetooth-enabled cell phone. The radio uses a tiny wireless Bluetooth transceiver (the same technology used to link cell phones to wireless ear buds) to synchronize with your cell phone. When you go for a sail, you can put your cell phone belowdecks and use your VHF to monitor and receive any incoming phone calls.

According to multiple reports, most AC electrical fires occur at the boats shorepower inlet. To address this and other shortcomings of the standard twist-type boatside connection, SmartPlug Systems developed a new AC shorepower system that the company hopes will become the new marine standard. Loose and corroded connections are most often the culprits when overheating occurs. Corrosion typically results when moisture gets in at the plug-inlet connection, while arcing-which in turn leads to pitting, scorching, and heat build-up-is partially due to the shape and small contact area of the connector pins.