Navman

Navman top Marine electrical & electronic equipment


Navman economises size and voltage while maximising use and flexibility with the 6000 series multifunction units. Or bring your entire boating instrumentation together in one machine with the 12-inch Navman 8120, or 8-inch 8084.

Categories

Marine Electronics


Autopilots

Marine Electronics


Marine Chartplotters

Marine Electronics


Combo Units

Marine Electronics


Fishfinders

Marine Electronics


GPS

Marine Electronics


Instruments and Boat Parts

Marine Electronics


Instrument Housings

Navman Products


  • Combos - Navman combo units bring GPS, Sonar, Fuel and a range of essential tools together in easy to use, value-packed configurations.
  • Chartplotters -Series of powerful, feature-laden GPS chartplotters, engineered in a variety of combinations to suit your specific needs.
  • Fishfinders by Navman Marine - Sophisticated sounder technology with Navman's ease-of-use engineering, in a range of sizes and single or dual frequency combinations to suit your needs.
  • Autopilots - Now with the award-winning G-PILOT 3380, Navman is bringing unprecedent ease-of-use to sophisticated autopilot technology.
  • Instruments - We know what you need in marine instrumentation: big, bold digits that you can read at a glance.
  • Radios

Marine Electronics (basics)


Things have changed a lot since the days when the first nav priority was to have three accurate watches for timing celestial sights. Obviously today everybody carries several GPS units, and has forgotten how to work a sight anyway.

And if the boat is fiberglass, one of these portable GPS units needs so be in some sort of a metal container, to hopefully protect it if a lightning strike occurs. Remember those gray steel petty cash boxes? One of these would be perfect!

Next is a depth finder. No need for sailing instruments, yet you can tell which way the wind is blowing with a bit of yarn, and looking at the water will give you a much better feeling for true wind speed than most sophisticated sailing instruments.


The tougher questions come in the realm of weather data and radar. Which do you spend money on first? And where does electronic charting come into the equation?

We all used to think that radar was first and foremost a navigation tool. If celestial or DR could get us within radar range, we'd then have a target on the screen to guide us the rest of the way. This logic no longer holds true, so radar drops back into the watchkeeping and weather lookout category, some modern radars work great for sizing up squalls, and spotting approaching frontal boundaries by their rain bands.


So, if you has to make a choice between weather and radar, maybe you would go with a good weather system first.

So, if you has to make a choice between weather and radar, maybe you would go with a good weather system first.


Old Paper faxes are very nice, but if budget were limited, today I'd chose an SSB radio and Pactor modem (with USB interface between modem and PC), which gets us faxes, e-mail, and the ability to discuss the weather (and what everybody is having) with our sailing friends scattered around the ocean. Of course this means a computer too, but these are now so inexpensive, and perform so many functions, that a simple system with all the ingredients (computer, SSB, modem, and software) is not significantly more costly than the dedicated fax and you probably have a portable computer at home anyway.


Next comes radar. It is the feeling that unless the radar has reasonable ability to pick out targets in rain and sea clutter, it is probably better to do without. If you "lose" your targets, then you have a false sense of security, which is much worse than having no radar, being worried, and keeping a careful watch. Good target definition in inclement conditions starts with the quality of the set so far Furuno brand seems to have the best target definition and then goes to antenna size. A 24" antenna is an absolute minimum, - 36" or more is even better.

And now let's come back to sailing instruments. If it were not for the design information we all extract from the B and G stuff to be used in the next boat we would probably do without at this point. The low-cost systems are typically pretty inaccurate at deducing true wind angle and true wind speed--and even the good stuff has to be carefully calibrated, and re-calibrated periodically, for the data to relate to reality at which point looking at the water is probably a better bet.


The one function in all this fancy stuff that we do like is the magnetic true wind direction and the trend in that direction. This is a great tool for weather forecasting and something that is hard to decipher by just looking at the water.

Left off VHF radios (one of the best come from Simrad Marine Electronics) because everyone has one. If space, weight, or budget were tight, I'd go with a portable first, connected to a masthead antenna. You can take this with you , or use it on deck or in the life raft in an emergency. Otherwise, a fixed unit and a portable make a pretty good package.