Forums > Windsurfing   Gps and Speed talk

Newbie to GPS question- Garmin Watch vs KA72

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Created by Orange Whip 2 months ago, 28 Sep 2025
Orange Whip
QLD, 1069 posts
28 Sep 2025 8:34PM
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Please excuse this dumb newbie question. Recently acquired a Garmin Instinct 2S solar watch and recorded my first sailing session yesterday. The watch/Connect show a top speed of 24.2 knots. When I uploaded the gpx file to KA72 just now it shows 2 sec peak at 17.96 knots. This sound right?

decrepit
WA, 12761 posts
28 Sep 2025 7:11PM
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It's certainly possible, the watch could be showing the top speed in a spike, whereas KA72 has a few filters that get rid of spikes.

powersloshin
NSW, 1835 posts
29 Sep 2025 5:58AM
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you can download gps speedreader and check the file yourself

Orange Whip
QLD, 1069 posts
29 Sep 2025 7:12AM
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Yeah, excuse my ignorance, I just had a look at the session in the Garmin Connect app. Should have looked at that earlier. I started recording just before carrying my gear to the water and there are two > 20 knot readings at that time. Lesson learnt. Thanks for your help.

BSN101
WA, 2370 posts
14 Oct 2025 1:08PM
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Select to expand quote
Orange Whip said..
Yeah, excuse my ignorance, I just had a look at the session in the Garmin Connect app. Should have looked at that earlier. I started recording just before carrying my gear to the water and there are two > 20 knot readings at that time. Lesson learnt. Thanks for your help.


OW sprints to the water only to out sail his PB beach effort.

Orange Whip
QLD, 1069 posts
15 Oct 2025 1:03PM
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Haha yeah mate. Well, at least I didn't record the drive home like some do at my local.

Kym Roberts
SA, 259 posts
21 Oct 2025 7:10AM
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I've nearly got this sussed with the Garmin 255 to ka72 been hell for not a techy person

Kym Roberts
SA, 259 posts
21 Oct 2025 9:20AM
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Yep got it sorted, pretty happy now ??



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"Newbie to GPS question- Garmin Watch vs KA72" started by Orange Whip