First post but I've been pokin around a bit. I got to thinking about this feature from another post in the "Aquapac placement" thread.
I've been trying out the GT-11 for a bit and haven't used the overspeed function yet. Does it reset itself (turn off buzzer or led once below set speed)? How long does the buzzer or led go off? Or do you have to manually reset it? I'm about to send it back as I can't navigate the menus in the pac...at all without pressing the ts down. I like to interact with teh GPS enroute but I can't with the Aquapac. What are the various speeds you can set to alert to? I use Nautical units so best for kts if possible.
My typical routine is (with Fortrex) glance down. If I see 30+kts from a run it's a keeper so I reset and monitor till I get more over 30kts. I keep a running total in my head so I know what's what. If I'm hitting 32's I know to keep hammering till I hit 6 or 8 total in range for good avg.
Currently with GT in pac, I run around till I get tired and hope things went ok. If the overspeed works as I hope, I might not have to post this back to the vendor.
Sorry if the q's seem obvious but I've packed the unit up last night and am at work so I can't test it yet.
Any thoughts?
J
Methinks our not-so-swift mate is back...
Do you have any idea how fast 30 knots is?
quote:
Originally posted by Jrobb
I've been trying out the GT-11 for a bit and haven't used the overspeed function yet. Does it reset itself (turn off buzzer or led once below set speed)? How long does the buzzer or led go off? Or do you have to manually reset it? I'm about to send it back as I can't navigate the menus in the pac...at all without pressing the ts down. I like to interact with teh GPS enroute but I can't with the Aquapac. What are the various speeds you can set to alert to? I use Nautical units so best for kts if possible.
My typical routine is (with Fortrex) glance down. If I see 30+kts from a run it's a keeper so I reset and monitor till I get more over 30kts. I keep a running total in my head so I know what's what. If I'm hitting 32's I know to keep hammering till I hit 6 or 8 total in range for good avg.
Currently with GT in pac, I run around till I get tired and hope things went ok. If the overspeed works as I hope, I might not have to post this back to the vendor.
quote:
Originally posted by nebbian
Methinks our not-so-swift mate is back...
Do you have any idea how fast 30 knots is?
quote:
Originally posted by nebbian
Methinks our not-so-swift mate is back...
Do you have any idea how fast 30 knots is?
Matthew:
Maybe I should have been more clear.
I don't reset during the speed run. I reset just after the tack or jybe at the end of the run.
Resetting the Fortrex is way easier than the Gt. Press the same button twice. (enter-"reset max speed?"-enter) takes 2seconds even cruising @over 25kts if I forgot to do it earlier. I do sail and do well locally. I post on GPSSS and short of posting all my credentials to dispell the e-thug in all of us I'll let you and Nebbs put 2 and 2 together yourself over there. www.gps-speedsurfing.com/default.aspx
Hint:All info provided here(and in profile) is correct.
The unit was given to me to try out to see if I wanted to purchase it. I am fully aware of it's benefits...precision and validity of stored tracks and quantity. It is rather useless while under way (currently) compared to the Fortrex... but I'm not trying to sling muck here.
I usually leave the "max speed" screen up but I like to improve on all fronts rather than just one. I use a custom page on the Fortrex displaying max speed,distance sailed,time moving, and moving avg. All visible at a glance...no buttons needed. I can tell instantly if my 1hr time is good or better and I can keep at it till I have enough time logged. If I'm close to my personal max distance, I can do that too. Convenience is what I'm comparing certainly not precision.
J
So next time you're windsurfing, turn the overspeed function on, and try it out! Sheesh!
You want us to make up your mind for you? 
Seriously though, it starts beeping at 22 knots or so, slowly. By the time it hits 25 it's beeping pretty consistently. Then when you hit 30 it's going at least once every second.
But you'll only be able to hear it if your GPS is on the forward arm (so starboard arm if your speed run is starboard tack).
quote:
Originally posted by nebbian
So next time you're windsurfing, turn the overspeed function on, and try it out! Sheesh!
You want us to make up your mind for you?
Seriously though, it starts beeping at 22 knots or so, slowly. By the time it hits 25 it's beeping pretty consistently. Then when you hit 30 it's going at least once every second.
But you'll only be able to hear it if your GPS is on the forward arm (so starboard arm if your speed run is starboard tack).
G'day Jon
The details of the firmware change was covered in a thread on GPS speed
www.gps-speedsurfing.com/default.aspx?mnu=forum&forum=1&val=3732
Not using the Navi myself I can't comment personally but from what I gather it has made an improvement.
Hope this helps
Hi Jon, Firstly apologies for any bad-will, there have been quite a number of postings from a person who is using a different username for each posting.
As Elmo said, there is some work going on in the background where a group of us have been having lots of technical discussions on how to evolve the GPS-based measurement capabilities so that it is more meaningful.
The short of it is that we are aiming to make the GT-11 accurate to better than 1cm/s - and mostly just from doing a simple firmware update. There are also some other features which we are requesting too, eg: big digit readouts. The idea being that for serious GPS measurement you would only need a single GT-11 to be confident that your results were pretty close to world-record accuracy.
However, as your subsequent posts have explained there are some features that the GT-11 doesn't have and probably never will. eg: 4 different readouts on the one screen -> the GT-11 simply doesn't have the screen space.
I personally run both of GT-11 and Foretrex -> the GT-11 does the high-precision logging and the Foretrex shows the real-time data.
quote:
Originally posted by elmo
G'day Jon
The details of the firmware change was covered in a thread on GPS speed
www.gps-speedsurfing.com/default.aspx?mnu=forum&forum=1&val=3732
Not using the Navi myself I can't comment personally but from what I gather it has made an improvement.
Hope this helps
quote:
Originally posted by mathew
Hi Jon, Firstly apologies for any bad-will, there have been quite a number of postings from a person who is using a different username for each posting.
As Elmo said, there is some work going on in the background where a group of us have been having lots of technical discussions on how to evolve the GPS-based measurement capabilities so that it is more meaningful.
The short of it is that we are aiming to make the GT-11 accurate to better than 1cm/s - and mostly just from doing a simple firmware update. There are also some other features which we are requesting too, eg: big digit readouts. The idea being that for serious GPS measurement you would only need a single GT-11 to be confident that your results were pretty close to world-record accuracy.
However, as your subsequent posts have explained there are some features that the GT-11 doesn't have and probably never will. eg: 4 different readouts on the one screen -> the GT-11 simply doesn't have the screen space.
I personally run both of GT-11 and Foretrex -> the GT-11 does the high-precision logging and the Foretrex shows the real-time data.
