How much do you use your Chartplotter? - Page 4 - SailNet Community
 11Likes
Reply
 
LinkBack Thread Tools
post #31 of 64 Old 02-25-2014
Master Mariner
 
capta's Avatar
 
Join Date: Jun 2011
Location: somewhere in the Windward or Leeward Islands
Posts: 2,165
Thanks: 29
Thanked 108 Times in 103 Posts
Rep Power: 5
 
Re: How much do you use your Chartplotter?

Quote:
Originally Posted by Minnewaska View Post
For you guys burning juice to run your plotters anchor alarm at night, consider an iPad or iPhone app for that.

Much less juice and some will allow you to check on the boat from shore, if you go to dinner, and see the same breadcrumb trail. That's peace of mind.
Sounds like a terrific idea. But help me out a bit, because we don't have a phone at all. How much for one of those phones or tabs? How much for a plan that will get me going on a British Island, a French Island and a Dutch Island?
I'm not being at all argumentative here; I would absolutely LOVE to be able to check the boat while ashore on one of those blustery 35 knot days!
But I;m betting I couldn't afford it if I was cruising beyond the cell limits of the USA.

"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

facebook.com/svskippingstone
Our Videos;

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
capta is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #32 of 64 Old 02-25-2014
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 11,039
Thanks: 46
Thanked 224 Times in 209 Posts
Rep Power: 7
   
Re: How much do you use your Chartplotter?

I'm not familiar with cell plans in other countries, but I know you can get them for the iPhone at least. No idea about the iPad. One version of the iPhone also allows updated Sim cards, if I'm not mistaken.

I pay $20 per month for the 3G cell data on my iPad and I've never used half of the allowance. I avoid streaming video, otherwise, I use it alot.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Minnewaska is offline  
Quote Quick Reply Share with Facebook
post #33 of 64 Old 02-25-2014
Senior Member
 
blutoyz's Avatar
 
Join Date: Oct 2012
Posts: 661
Thanks: 10
Thanked 14 Times in 13 Posts
Rep Power: 3
 
Re: How much do you use your Chartplotter?

On all the time...I don't even have a secondary depthfinder but I don't cruise so I may not count
blutoyz is offline  
Quote Quick Reply Share with Facebook
post #34 of 64 Old 02-25-2014
Senior Member
 
Join Date: Aug 2006
Location: Norway
Posts: 856
Thanks: 8
Thanked 63 Times in 58 Posts
Rep Power: 9
 
Re: How much do you use your Chartplotter?

Quote:
Originally Posted by capta View Post
Sounds like a terrific idea. But help me out a bit, because we don't have a phone at all. How much for one of those phones or tabs? How much for a plan that will get me going on a British Island, a French Island and a Dutch Island?
I'm not being at all argumentative here; I would absolutely LOVE to be able to check the boat while ashore on one of those blustery 35 knot days!
But I;m betting I couldn't afford it if I was cruising beyond the cell limits of the USA.
The gsm system is based on the idea that the subscription data is stored on a (SIM) card that you insert into the phone.
Read more here

If you buy a phone or pad without phone locking GSM - Wikipedia, the free encyclopedia, you can use different SIM cards in the same phone/pad.
That way you can buy a local SIM card an put into your phone, that is normally less expensive than using a foreign card locally.

The drawback with multiple SIM cards is that the phone number is tied to the card so suddenly you have many different phone numbers but only the one in the phone/pad will work at a given time.

Often you will find that prepay subscription is easy to buy.

EDIT:
If you buy a phone/pad with built in GPS it will also work without any phone coverage.
And if you want chart you should select a chart that works without internet coverage.
But you should now that battery wont last that long when the GPS is turned on.

Last edited by knuterikt; 02-25-2014 at 11:53 AM. Reason: Added note on GPS in phone
knuterikt is offline  
Quote Quick Reply Share with Facebook
post #35 of 64 Old 02-25-2014
Master Mariner
 
capta's Avatar
 
Join Date: Jun 2011
Location: somewhere in the Windward or Leeward Islands
Posts: 2,165
Thanks: 29
Thanked 108 Times in 103 Posts
Rep Power: 5
 
Re: How much do you use your Chartplotter?

Quote:
Originally Posted by shananchie View Post
Many years ago, my daughter did a school science project on GPS and nautical charts. We picked a bunch of spots in Biscayne Bay and the Upper Keys. A significant number of locations and channel markers were off, some by many hundreds of feet.
I wouldn't feel safe watching the dot instead of watching the water.
I guess that's the good thing about sailing in the third world; there are very few aids to navigation and they are often not lit or on station.
There is absolutely no doubt that your GPS is much more accurate than any chart, as far as physical landmarks are concerned. You only have to do the ICW to learn this lesson. GPS is a wonderful aid to navigation, but you can be hard aground when a paper chart is showing you in 1000 feet of water. I have seen sat photos of some of the islands in the SoPac, and you would bet the farm that they were not of the same island shown on the chart.
At one time, Antigua had a notation on the chart that the island was mischarted by 1/4 of a mile. Fortunately, this was before GPS, or a dark and stormy night would have been the ruin of many a small craft.
Other than that, however, the information regarding the vessel's passage through the water is not unreliable and exceedingly useful.

"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

facebook.com/svskippingstone
Our Videos;

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
capta is offline  
Quote Quick Reply Share with Facebook
post #36 of 64 Old 02-25-2014
Senior Member
 
TakeFive's Avatar
 
Join Date: Oct 2009
Location: Swarthmore, PA
Posts: 3,092
Thanks: 6
Thanked 81 Times in 71 Posts
Rep Power: 6
 
Re: How much do you use your Chartplotter?

Quote:
Originally Posted by shananchie View Post
...Many years ago, my daughter did a school science project on GPS and nautical charts. We picked a bunch of spots in Biscayne Bay and the Upper Keys. A significant number of locations and channel markers were off, some by many hundreds of feet...
What was the source of the error? Were the NOAA charts incorrect? Or was it just Garmin's (Raymarine's, etc.) translation of the NOAA chart? Or was the GPS fix off by many hundreds of feet (which I've never seen before)?

I ask this because I've always been suspicious of the embedded proprietary charts in electronic devices. Garmin's embedded charts for USVI and BVI can be off by hundreds of feet. Even NOAA's are off in that area, especially #25641 which is off by 1000 feet at Jost, Tortola, and eastern St. John.

But in the coastal US, IMO a chartplotter that uses NOAA's actual charts is more reliable than a proprietary chartplotter that attempts to replicate NOAA's data. The latter can always be susceptible to translation errors. That's one of the reasons I use a computer-based chartplotter that allows me to download NOAA's most up-to-date charts directly from their website.

Here's what I'll have mounted at my helm this year in dry weather. When it's raining, I'll move it down below or put it in my Travelon waterproof pouch:



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Formerly posted as "RhythmDoctor"
1998 Catalina 250WK Take Five (at Anchorage Marina, Essington, on the Delaware River)
1991 15' Trophy (Lake Wallenpaupack)
1985 14' Phantom (Lake Wallenpaupack)

Last edited by TakeFive; 02-25-2014 at 07:03 PM.
TakeFive is offline  
Quote Quick Reply Share with Facebook
post #37 of 64 Old 02-25-2014
Senior Member
 
Yorksailor's Avatar
 
Join Date: Oct 2009
Location: Pacific side of Panama
Posts: 531
Thanks: 17
Thanked 25 Times in 22 Posts
Rep Power: 6
 
Re: How much do you use your Chartplotter?

Off-shore it is used continually for radar and AIS information, close to shore it is used as an aid to navigation we just do not believe it is accurate and never use it for close navigation especially at night.

We see between 1 and 3 boats per year on Caribbean reefs and there is a boat in the yard in Panama, where we are presently, that spent 14 hours on a reef because the skipper believed a plotter rather than his eyes.
Yorksailor is offline  
Quote Quick Reply Share with Facebook
post #38 of 64 Old 02-25-2014
Senior Member
 
Join Date: Dec 2010
Posts: 4,630
Thanks: 1
Thanked 189 Times in 157 Posts
Rep Power: 5
 
Re: How much do you use your Chartplotter?

Quote:
Originally Posted by luv4sailin View Post
I used mine just yesterday. As I left the last green mark exiting Dinner Key on Biscayne Bay to starboard, my chart plotter said I was leaving it to port. Go figure.

My reservation with plotters is that one can believe that one is really where the plotter says you are relative to the hard things that will break your boat, and you too and maybe you aren't there.

The relative inaccuracy of the process of using my GPS and looking at where I think I am on a paper chart, has me more vigilant and therefore, in my judgement, safer.
You'd better learn to love your plotter, Ron...

Your Explorer Chartbooks of the Bahamas seem destined to be "outlawed", sooner or later...

But, hopefully not before Navionics fixes all of the gross inaccuracies that have long plagued their E-cartography of the Bahamas... :-)

Or Belize, for that matter:





"Red squiggle: where we ran aground. Black/red dots: deep water channel.
The channel is actually 300 yards east of what the Navnet Chart showed."


Greenland and Labrador is another region of the world, where paper charts are likely to be banned eventually, after all the purveyors of E-charts correct their current products to match the superior accuracy of the Danish and CHS paper charts already in existence... :-)

Last edited by JonEisberg; 02-25-2014 at 11:47 AM.
JonEisberg is offline  
Quote Quick Reply Share with Facebook
post #39 of 64 Old 02-25-2014
Senior Member
 
Group9's Avatar
 
Join Date: Oct 2010
Posts: 1,805
Thanks: 24
Thanked 72 Times in 70 Posts
Rep Power: 5
 
Re: How much do you use your Chartplotter?

Quote:
Originally Posted by JonEisberg View Post
You'd better learn to love your plotter, Ron...

Your Explorer Chartbooks of the Bahamas seem destined to be "outlawed", sooner or later...

But, hopefully not before Navionics fixes all of the gross inaccuracies that have long plagued their E-cartography of the Bahamas... :-)

Or Belize, for that matter:





"Red squiggle: where we ran aground. Black/red dots: deep water channel.
The channel is actually 300 yards east of what the Navnet Chart showed."
I basically sail the Bahamas with my Explorer Chartobook laying on the cockpit seat and open to the area I am navigatin. I do this despite the fact that my Garmin chart-plotter is suppose to have the Explorer charts loaded into it.

I've notice minor variations, and you never quit looking at the water, but I have been amazed at how accurate the Explorer Charts, and the Garmin chartplotter with the Exp. Charts loaded into it, actually are.

I still wouldn't blindly follow them through hazardous waters at night.

On the northern Gulf of Mexico.


"Best thing to do is get her out on the ocean. If anything's gonna happen, it's gonna happen out there." Captain Ron Rico
Group9 is offline  
Quote Quick Reply Share with Facebook
post #40 of 64 Old 02-25-2014
Learning the HARD way...
 
eherlihy's Avatar
 
Join Date: Jan 2007
Location: Boston / Ft Myers Area
Posts: 4,001
Thanks: 158
Thanked 103 Times in 100 Posts
Rep Power: 9
 
Re: How much do you use your Chartplotter?

Oh yeah, - I totally forgot about hardware that is not designed to only be a Chartplotter...

* I use my Garmin GPSMAP 478 anytime while underway, and frequently while at anchor as an anchor drag alarm, assuming that I have not left it in the car.
* I also have a laptop onboard that runs PolarView NS, that is on 90% of the time when under way.
* I also have my Android smartphone on which I run SailDroid for speed/compass, and DragQueen as another anchor drag alarm.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

USCG Licensed OUPV Captain, ASA 101/103/104/105/106/118 Certified Instructor - Also certified in Recreational Marine Electrical Systems
eherlihy is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
PC Chartplotter advice? Brian_vancouver Seamanship & Navigation 16 09-22-2013 04:46 PM
Chartplotter brokesailor Pacific Seacraft 18 05-11-2011 07:58 AM
PC as chartplotter? 2hulls4me Cruising & Liveaboard Forum 32 05-14-2009 12:55 AM
mounting chartplotter ArgleBargle Gear & Maintenance 17 08-13-2007 11:11 PM
Chartplotter sailorguy_md Gear & Maintenance 4 01-23-2005 08:47 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome