Forums > Windsurfing   Gps and Speed talk

Garmin GPSTC Datafield - to complement the Motion Simple Logger

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Created by tbwonder 1 month ago, 3 Apr 2020
tbwonder
NSW, 309 posts
4 May 2020 10:34PM
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I have had several people contact me for advice on Garmin watches. Whilst programming I put together this table, which may now be useful for those looking to purchase. All the watches below are supported (but I must add they have not all been tested). The further down the table the more desirable they are.

If you want to run the Alpha datafield you need a watch with at least 32 k memory. The 128k models will be the most future proof. If I ever get one then there is potential to write some more sophisticated code.

Personally I would avoid the Fenix 5S, Fenix 5s Plus, Fenix 6S, Fenix 6S Pro as the "S" Series is the smaller screen version which is not great for old folk who need reading glasses.

Garmin watches do many things, different watches suit different people. There are often great deals of up to 50% off retail price. If I had to buy a full price current model watch to run my apps I would choose the Forerunner 245.

tbwonder
NSW, 309 posts
7 May 2020 3:49PM
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Datafields 1 and 2 for the newer 32K watches now have the option of setting all displays to either "Nautical Miles per hour" which is the default or "Miles per hour" or "Kilometres per hour".

All data written to the FIT files will be in the selected units, however Garmin Connect will always display the units as kts! Oddly this is not configurable.

There is not enough free memory to add this functionality to the 16k devices.

tbwonder
NSW, 309 posts
21 May 2020 9:43PM
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I see there are some good deals from JB and Rebel at the moment
Fenix 5 is $449 and Fenix 5X is $559
I guess these are soon to be discontinued, but has to be better than paying $1000+

spanishwog
QLD, 101 posts
22 May 2020 4:38PM
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Hey experts - I have quoted this previously but when it comes to techo things I am much more comfortable with a hammer in my hand.
So can I please ask for guidance on loading the datafields onto the watch.
I have downloaded datafields through the Garmin IQ connect app on my phone and I can see that they are there.
I have a 735xt and have watched some videos on youtube which all describe changing datafields for running activities.
Do I just pick one of the activities on my watch that I don't use (like the "Run Indoor") and load the GPSTC datafields against that?
cheers
Troy

rww
QLD, 73 posts
22 May 2020 4:46PM
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spanishwog said..
Hey experts - I have quoted this previously but when it comes to techo things I am much more comfortable with a hammer in my hand.
So can I please ask for guidance on loading the datafields onto the watch.
I have downloaded datafields through the Garmin IQ connect app on my phone and I can see that they are there.
I have a 735xt and have watched some videos on youtube which all describe changing datafields for running activities.
Do I just pick one of the activities on my watch that I don't use (like the "Run Indoor") and load the GPSTC datafields against that?
cheers
Troy


There's an app called "Other" that you can use as your base.

Cocky2
QLD, 187 posts
23 May 2020 8:46AM
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tbwonder said..
I see there are some good deals from JB and Rebel at the moment
Fenix 5 is $449 and Fenix 5X is $559
I guess these are soon to be discontinued, but has to be better than paying $1000+


Andrew thank you for all your work on the new Apps.
They are really good to get all 6 Categories on water feedback. Just purchased Fenix 5 on special to get Alpha as my old 920XT can not.
fenix 5 $449 + 2 loggers $320 = $769
GW60 $369 x 2 = $738

thanks

sailquik
VIC, 5004 posts
Saturday , 23 May 2020 10:25PM
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2 x Motion Loggers $320 + Cheap Android Phone with GPSLogit $30 = $350.

All Categories feedback Plus it actually Talks my speed to me in real time, and the last run as I gybe or stop!

How good is that!

Not knocking the Garmin watch and app though. Good for those who want it and can afford it. .

tbwonder
NSW, 309 posts
Sunday , 24 May 2020 9:20AM
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sailquik said..
Not knocking the Garmin watch and app though. Good for those who want it and can afford it. .


Yes Andrew Garmin watches are expensive. But they are a top quality product. The product refinement is excellent. To me it is a GPS, a smart watch, a heart rate monitor, a barometer, an accelerometer, a compass, to others it is many other things.

It's always there on your wrist ready to go. It is genuinely waterproof and has a great battery life.

There is effectively no upload process, it happens completely automatically. You stop your track and the next thing you know it is all uploaded to Garmin Connect.

Garmin Connect stores all your tracks for free, you can keep them private, or share them with friends or with everyone. You can request Garmin to send you every single piece of data that they have in your account. I have done this in order to create my own heat maps with over 2000 tracks I have recorded over the last 11 years.

It is fully configurable with watch faces, apps and datafields.

The reliability is fantastic, I am on my second Garmin watch, the first one was still going strong after 9 years.
I'm not knocking GPSLogit on a phone, for some it is a good solution. But I like my Garmin.


A tiny section of my heat map, this is one of our local mountain biking areas

vosadrian
NSW, 294 posts
Monday , 25 May 2020 9:58AM
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Yep... many people here just don't get what the Garmin watch can do. I have mine on my wrist daily (24/7) and it records many aspects of my health. I use it for CC payments so I don't need to carry a phone or wallet on a run but can get a drink/snack. It is used for many sports... not just to add feedback for windsurfing (I use it for cycling, swimming, running also). It is genuinely water proof and no hassle wireless and has great battery life. Really for all the other uses, most people who use a Garmin consider that the windsurfing feedback is just a free add-on.

Of course many people don't need or want the extra stuff, and that is fine... but that is what the cost of the Garmin is related to. If you don't want to use all that and prefer to hack together some other solution that is cheaper... go for it. But it is unlikely any hacked solution could be as seamless and easy.... arrive at water.... press a couple of buttons on the device already on your wrist. Sail. Press a few more buttons when your done.... activity uploaded!

sailquik
VIC, 5004 posts
Monday , 25 May 2020 11:39AM
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Yes Adrian, and it's a big shame that Garmin have all this technological expertise and investment and they still choose not to have their watches to produce decently accurate Doppler speed or any accompanying validation data, not even just the satellites used!

I think it all boils down to the fact that for all of their target sports, speed accuracy is just not needed, and those sports needs are served very well with the positional data they do produce. Even high level positional accuracy is just not that critical for most of those sports.

Unfortunately, speed windsurfing is such a tiny fraction of the potential ,market for them that it is of no interest, and it does not make economic sense to cater for it..

Sad for us, but perfectly understandable.

vosadrian
NSW, 294 posts
Wednesday , 27 May 2020 9:34AM
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I agree with all you have to say.... except that I find the Garmin product perfectly acceptable for my needs in windsurfing except for one thing... not accepted by GPSTC.

The quality of the data is perfectly fine for my requirements. I don't need 0.0000001% speed accuracy. I am not trying to set records. I do use the garmin for records in cycling on Strava. It is frustrating sometimes when I lose a KOM (record) when someone with a phone with poor GPS data takes it. But Strava does have a method to deal with this... and all record data is public so you can check other data yourself and flag it if it is sus. Strava does not attempt high accuracy levels as timing of a segment starts on the first GPS sample within the segment and ends on the last... so if you have a low GPS sample rate you get faster times! Not normally an issue on long segments which are many minutes rather than seconds. You normally have a +/-3 second accuracy which is not great for a 15 seconds segment.

Anyway, this thread was for Garmin use as a secondary... non GPSTC device. It is perfect for that... especially for those already using a garmin for other uses.

kato
VIC, 2715 posts
Wednesday , 27 May 2020 7:28PM
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And I use my phone and GT 31 for bike riding

powersloshin
NSW, 1119 posts
Thursday , 28 May 2020 7:31AM
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Personally I would not like to upload all my fitness metrics, location etc. to a company's database

tbwonder
NSW, 309 posts
Thursday , 28 May 2020 9:49AM
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powersloshin said..
Personally I would not like to upload all my fitness metrics, location etc. to a company's database



There is no requirement to upload anything to Garmin Connect and if you do you can set the level of public visibility.
If you don't want Garmin to see your heart rate or other data you can turn all that stuff off.
If you want to keep things private, the files can be manually copied from the watch and processed completely offline any way you like.
Everybody has a different level of comfort when it comes to sharing their personal data.

I see that you are happy to upload your location to KA72 for all the world to see.

DarrylG
WA, 247 posts
Thursday , 28 May 2020 8:03AM
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I just think it will be great when the GPSTC finish the site upgrades allowing the Garmin's. Then everybody can start playing nicely together again.

tbwonder
NSW, 309 posts
Thursday , 28 May 2020 10:25AM
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DarrylG said..
I just think it will be great when the GPSTC finish the site upgrades allowing the Garmin's. Then everybody can start playing nicely together again.


I think we are already playing nicely together.
The new simple motion has quietened the call from those who thought Garmin Watches should be allowed to be used on GPSTC.
Just to be clear I have always strongly supported GPSTC admin in not allowing Garmins to be used for posting.

DavMen
NSW, 1466 posts
Thursday , 28 May 2020 10:55AM
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Actually there are quite a lot of garmin owners waiting to be "included" in a second teir of GPSTC as promissed.

As requested we wait patiently and quietly - but we havn't gone away.

Thanks for the Data fields - love it !

BTW I have a tin foil hat at hand ready incase a company wants to steal my anonymous postings to use to spread another virus.

Boston!
NSW, 165 posts
Thursday , 28 May 2020 3:55PM
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tbwonder said..

DarrylG said..
I just think it will be great when the GPSTC finish the site upgrades allowing the Garmin's. Then everybody can start playing nicely together again.



I think we are already playing nicely together.
The new simple motion has quietened the call from those who thought Garmin Watches should be allowed to be used on GPSTC.
Just to be clear I have always strongly supported GPSTC admin in not allowing Garmins to be used for posting.


"The new simple motion has quietened the call from those who thought Garmin Watches should be allowed to be used on GPSTC."
Not like you to be so controversial, Andy!

vosadrian
NSW, 294 posts
Friday , 29 May 2020 11:26AM
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tbwonder said..


I think we are already playing nicely together.
The new simple motion has quietened the call from those who thought Garmin Watches should be allowed to be used on GPSTC.
Just to be clear I have always strongly supported GPSTC admin in not allowing Garmins to be used for posting.


I doubt that is true. Promises were made about changes coming and that it would take time to implement. Those with Garmins are quietly waiting for those changes.

vosadrian
NSW, 294 posts
Friday , 29 May 2020 11:30AM
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powersloshin said..
Personally I would not like to upload all my fitness metrics, location etc. to a company's database


It's not for everyone!

Sure you can use your phone and other devices (or no devices) that are private if you that way inclined. But you only have to look at the number of people using fitness watches of various brands to know they are VERY popular with A LOT of people.

Its great to have choice to use the device you want to use... or not!!

tbwonder
NSW, 309 posts
Friday , 29 May 2020 12:02PM
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vosadrian said..

tbwonder said..


I think we are already playing nicely together.
The new simple motion has quietened the call from those who thought Garmin Watches should be allowed to be used on GPSTC.
Just to be clear I have always strongly supported GPSTC admin in not allowing Garmins to be used for posting.



I doubt that is true. Promises were made about changes coming and that it would take time to implement. Those with Garmins are quietly waiting for those changes.


You say they are "quietly waiting", I said "has quietened the call". We agree they are quiet.
I am not suggesting that GPSTC should not change. The more options people have the better

vosadrian
NSW, 294 posts
Friday , 29 May 2020 5:10PM
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tbwonder said..

vosadrian said..


tbwonder said..


I think we are already playing nicely together.
The new simple motion has quietened the call from those who thought Garmin Watches should be allowed to be used on GPSTC.
Just to be clear I have always strongly supported GPSTC admin in not allowing Garmins to be used for posting.




I doubt that is true. Promises were made about changes coming and that it would take time to implement. Those with Garmins are quietly waiting for those changes.



You say they are "quietly waiting", I said "has quietened the call". We agree they are quiet.
I am not suggesting that GPSTC should not change. The more options people have the better


So what does it have to do with the simple motion?

sailquik
VIC, 5004 posts
Friday , 30 May 2020 12:01AM
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The simple Motion Logger is a very high quality, completely waterproof, 10Hz logger that is approved for use in the GPSTC and is only $160.

At the end of the session you can connect it wirelessly to you phone and upload directly to KA72. Simples!

I actually expected you would jump right onto this Adrian, as this seems to be exactly the functionality you expressed a desire for.

Andrew's Garmin watch App can be used in conjunction with it for 'useful' on the water feedback. That is the main point of this whole thread.

segler
384 posts
Saturday , 29 May 2020 11:18PM
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I am coming into this issue late, but what seems sensible is the notion of tiers in GPSTC, as has been mentioned.

"Official Tier" is for use only with those approved devices and by people who want to post their results as officially sanctioned speeds.

"Not Official Tier" is for anybody who wants to save and/or post their speeds, recognizing that these speeds are not officially sanctioned for international recognition. Here they can use any gps device they want, be it gpser, watch, or camera.

A continuing rule will always be that the device used MUST be posted with the results.

In any case, the whole GPSTC concept is fantastic. I hope it continues forever. With my GW-60 I can "race" with anybody in the whole world. With my Timex Ironman GPS, I can "compare" with other "Not Officlal" results from anywhere in the whole world.

Of course, this all requires a lot of effort in programming and debugging and maintaining. Many thanks are already due to those people who are doing this.



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Forums > Windsurfing   Gps and Speed talk


"Garmin GPSTC Datafield - to complement the Motion Simple Logger" started by tbwonder