I feel as though I've been asleep like Rip Van Winkle for many years. While I wasn't sailing much, GPS became a relatively inexpensive tool, not to mention cell phones. I see a handheld GPS for sale this morning at Target for $89. Figuring speed sounds nice, but other than getting lost in the fog, what can I do with GPS when I'm sailing on Puget Sound in an area I know with good navigational markers? Dad had one on his fishing boat but he kept a log of where he found the fish or where he dropped the crabpots. Would I use one for more than measuring speed over land? And how would I use it? (Do charts have GPS coordinates?) Bobbie
Bobbie, I don't use my GPS a whole lot either; it's more of a just-in-case item. I've heard rumors that some people like to put a couple of pillows up in the forepeak and then repeatedly toss their gps' up there so as to make the "max speed" give large readouts for later bragging about how fast they were going. One guy was bragging about going in excess of ten knots momentarily in his 17 but it is thought that he may have been engaging in that unscrupulous v-berth tossing game. He claims innocence in that regard though, and points to a 6.2 kt AVERAGE speed over the course of two hours as proof of the possibility. Feeling lost sometimes myself (and thinking of turning the gps on), Tod -----Original Message----- From: montgomery_boats-bounces+htmills=bright.net@mailman.xmission.com [mailto:montgomery_boats-bounces+htmills=bright.net@mailman.xmission.com] On Behalf Of Bobbie Mayer Sent: Sunday, June 05, 2005 9:24 AM To: montgomery_boats@mailman.xmission.com Subject: M_Boats: GPS I feel as though I've been asleep like Rip Van Winkle for many years. While I wasn't sailing much, GPS became a relatively inexpensive tool, not to mention cell phones. I see a handheld GPS for sale this morning at Target for $89. Figuring speed sounds nice, but other than getting lost in the fog, what can I do with GPS when I'm sailing on Puget Sound in an area I know with good navigational markers? Dad had one on his fishing boat but he kept a log of where he found the fish or where he dropped the crabpots. Would I use one for more than measuring speed over land? And how would I use it? (Do charts have GPS coordinates?) Bobbie _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
Bobbie: Never heard of the Max Speed Toss Tod mentions. Something new I had never thought of. I have two GPS units. The first I purchased out of curiosity (Garmin GPS 48). The second (Garmin Sounder 168) was based on the experience of the first. The second unit is a GPS/Depthsounder combination unit, with split screen and map overlay of the area. So at a glance, I can tell Depth AND bottom content, Speed over Ground, actual heading, Location, and about 10 other things, depending on what my interest might be at the moment. I do not even turn the unit on when on the local lake. Don't need it. But when I leave my local lake to go to some far off locale like the Chesapeake, sailing waters not familiar to me, it is comforting to be able to "light up" a navaid on the chart's map (could be 5 miles....could be 50 miles...it doesn't matter), hit the goto button and get an instant course heading to take me there. And if I veer off, it gives me heading corrections to get me back on track and at the same time, it will tell me at my current speed how long it's going to take me to get there. If it's 3 hours and I have one hour of daylight left, I know I'll either be sailing in the dark...or I need to fire up the engine. And I have been lost in the fog and lost on a pitch black night not knowing where the shore was. GPS will get you out of those situations. And yes I do carry paper charts, and have generally done the navigation work to know what the original heading should be, but once out of sight of land, using paper and compass, how do you know how much leeway and tides have set you one way or the other? In these conditions, having a GPS means you get a better than world class navigator to ride along with you for not much money. In addition, GPS, in combination with your other instruments, will tell you some other valuable information. Leeway....difference between compass heading and course made good. Tide speed....difference between what your knotmeter is telling you and your speed over ground (assuming the analog knot meter is accurate or is working at all). This particular unit...and several of the newer units for marine use, will also give you tide information. If you can read a chart well enough to figure out Lats & Longs, you can get your GPS coordinates from marine charts. You can also get your exact location from the GPS and plot it on the paper chart. Nothing magic about it, but generally speaking, it's always helpful to know at any given point, exactly where you are. Any GPS....including the add-on software programs for Palm Pilots will tell you map coordinates. As you move up the scale in price, you get more features. It all depends on how much money you have and how much information you want. At the extreme end of price....the units include dozens of features that the average person would not even know what is, let alone ever use or need. In that regard, they are not that much different than calculators. Some do simple math. Others have features only needed by a very few advanced whiz kids. And as you get more features, the level of complication with use goes up. Just realized I'm rambling and thus today's lesson in GPS 101 is concluded for today. :) Howard On 6/5/05 10:33 AM, "htmills@bright.net" <htmills@bright.net> wrote:
Bobbie,
I don't use my GPS a whole lot either; it's more of a just-in-case item.
I've heard rumors that some people like to put a couple of pillows up in the forepeak and then repeatedly toss their gps' up there so as to make the "max speed" give large readouts for later bragging about how fast they were going.
Bobbi, If you haven't picked a brand, you can't go wrong with anything made by Garmin, and their tech support is excellent, via an 800 number. The problem with almost all electronics these days, is that the instruction manuals are not written by people whose first language is English. I am fortunate in that Garmin offers an instructional DVD for the GPSMAP-296 that I use both in my airplane and my M-17. Regarding 'GPS coordinates on the charts', it's the other way around. The GPS will give you the coordinates of your location,and then you go to the chart to see where you are. Or, you can store the coordinates you picked off a chart, then enter them into the GPS as a waypoint. One thing for sure is that you should play with it and be quite familar with how to use it before you have to depend on it. Clarence Andrews ----- Original Message ----- From: "Bobbie Mayer" <barbaram@csufresno.edu> To: <montgomery_boats@mailman.xmission.com> Sent: Sunday, June 05, 2005 10:23 AM Subject: M_Boats: GPS
I feel as though I've been asleep like Rip Van Winkle for many years. While I wasn't sailing much, GPS became a relatively inexpensive tool, not to mention cell phones. I see a handheld GPS for sale this morning at Target for $89. Figuring speed sounds nice, but other than getting lost in the fog, what can I do with GPS when I'm sailing on Puget Sound in an area I know with good navigational markers? Dad had one on his fishing boat but he kept a log of where he found the fish or where he dropped the crabpots. Would I use one for more than measuring speed over land? And how would I use it? (Do charts have GPS coordinates?)
Bobbie
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Bobbie: Yes, charts have GPS coordinates; they are the latitudes and longitudes. We just finished 2 weeks in the San Juan and Gulf Islands and used the GPS units to plot routes, assess speed over the bottom, determine how much the current was moving us and in what directions (when comparing with compass readings). And if you did get lost in the fog--well a GPS could be a life saver. --Gary Hyde N24 'Sailabration' M15 #235 'Vanilla' On Jun 05, 2005, at 7:23 AM, Bobbie Mayer wrote:
I feel as though I've been asleep like Rip Van Winkle for many years. While I wasn't sailing much, GPS became a relatively inexpensive tool, not to mention cell phones. I see a handheld GPS for sale this morning at Target for $89. Figuring speed sounds nice, but other than getting lost in the fog, what can I do with GPS when I'm sailing on Puget Sound in an area I know with good navigational markers? Dad had one on his fishing boat but he kept a log of where he found the fish or where he dropped the crabpots. Would I use one for more than measuring speed over land? And how would I use it? (Do charts have GPS coordinates?)
Bobbie
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participants (5)
-
Bobbie Mayer -
Clarence Andrews -
gmhyde1@mac.com -
Howard Audsley -
htmills@bright.net