Marine Technology

A satcom snapshot

In the past 20 years satellite communications has grown from a novelty item for voyagers to something more like standard equipment for the voyaging boat. Between fixed terminal satcom options and handheld…

Heavy year for keel maker

With seven employees, the closing of Broomfield & Son, Inc., in Providence, R.I., in March 2020 didn’t make a splash on the…

Mind your stitches

When sails fail due to sunlight damage, what parts of sails are most likely to fail? We asked a…

Don’t scrimp when it comes to the crimp

I’m often asked by my power voyaging clients, “What do I need to know about making good crimp connections?” Fortunately, not very much. Material selection High quality solderless or “crimp” connectors start with high quality materials. When a connector…

Special Section: Marine Electronics

If you are planning an offshore cruise under sail, you need access to as much vessel data as possible in one single place. A multifunction chartplotter display is the nerve center of the modern offshore cruising vessel, bringing together chart…

Protecting your boat from overcharging

Earlier this year, I finally upgraded from lead acid batteries to lithium iron phosphate (LiFePo4) batteries on my Valiant 40, Brick House. I’d researched for at least a year and South Africa, with its great tech base and good exchange…

DYI electronic navigation

Navigation software for viewing electronic charts, voyage planning and in-voyage navigation has come a long way from the early days of raster images on a computer monitor. Navigation software packages are offered by an assortment of companies as either…

Optimizing Alternative Energy

A successful ocean voyage depends largely on the way we manage energy on our vessels, be it from the wind, the sun, the ocean, the auxiliary engine or a separate generator. As offshore sailors, our goal is to gain…

Affordable Instrument Packages

When looking for instrument displays to receive data from the various navigation, communication and security devices on our vessels, many…

A digital sextant

Sextants are wonderfully analog optical devices. A sextant user from the 1850s would have little problem using a modern sextant. Now a company in South Korea has begun offering something it calls the Korea Digital Sextant (KDS) that digitalizes…

BioBase by C-MAP Launches New Subscription Model

Egersund, Norway – C-MAP®, a leader in digital marine cartography and cloud-based mapping, announced today it has opened its BioBase™ EcoSound™ platform to include free subscriptions to qualifying organizations. Owned by Navico and operated through C-MAP, BioBase is a platform for aquatic…

Wireless cellphone chargers

Charging a cellphone, for most of us, requires jamming a tiny electrical contact into the base of our phones and hoping the…

Battery types

Wet cells: The de facto standard for high capacity batteries in boats for many years has been the basic wet cell lead-acid battery. These are somewhat simple in design. Plates are submerged in a liquid acid electrolyte contained in a…

Battery survey

What type of battery setup might make sense for your voyaging needs? We reached out to a selection of active liveaboard voyagers to get a sense of what they are using to power their vessels. Here are their answers to…

Alarms, getting to know them better

Editor’s note: This piece originally appeared in the Ocean Cruising Club’s monthly bulletin (oceancruisingclub.org). This Maretron screen is from a sophisticated vessel monitoring setup. Green shows normal ranges, yellow indicates borderline and red signals an alarm…

Marine Electronics, September 2020

Receiving weather GRIB files offshore has become much easier through the easy access offered by handheld satellite phones. No longer do you need to install a huge satellite dome on your vessel to receive this critical data while under way.

Satellite TV for cruisers

If you love watching television, you can still enjoy this pastime after you have sailed off for open water.