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Calypso Mini Wind Meter
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<blockquote data-quote="SteveLM" data-source="post: 2617818" data-attributes="member: 113868"><p>After literally weeks of calm winds, we finally got a breezy day today, so I took the opportunity to test the Calypso outside along with my Kestrel. Using its mounting point, I attached the Calypso to a tripod and extended the legs and mast so that the Calypso was sitting at nearly the same height as my head (so about 6 feet above ground level). I walked out to a spot that was about as far away as I could get from the surrounding trees and houses. I aligned the Calypso so that its reference mark was pointed north and I stood several feet away also facing north. </p><p></p><p>I fired up the Kestrel and, holding it at the same level as the Calypso, spent about 20 minutes watching the two wind measurements. Winds were gusting up to about 6-8 mph with average wind probably about 1.5 - 2 mph during the time I was outside. No pictures this time (not enough hands) but the Calypso and the Kestrel correlated very well whenever the wind gusted long enough for both instruments to get a steady reading. Wind speeds from both were usually within a small fraction of a mph; I often saw speeds that were only 0.1 mph different. Calypso's wind direction sensing was excellent and when the winds were steady enough (for a second or two) it always correlated with the wind direction against my face (note that when measuring wind speed, I tried to steer the Kestrel in the appropriate wind direction, sometimes using the Calypso as a cue to that direction).</p><p></p><p>When the winds shifted, the speed measurements diverged, undoubtedly due to the particulars of each instrument's sensing technology. The Calypso's wind direction measurement lagged as well. I don't think that there was anything unexpected about this.</p><p></p><p>Although this was not a day-long field test, my bottom line is that the Calypso delivers on its promise of accurate wind speed and direction. In the latter case, it is superior to the Kestrel which, of course, relies on you to sense wind direction. In other outdoor test attempts, I've been able to back off 20 to 25 feet before I start seeing Bluetooth connectivity problems, so the Calypso offers reasonable flexibility in locating it to get good wind measurements at a single nearby point. As someone else pointed out, it's not by itself a wind solution, but it certainly is an aid to helping you estimate a wind solution...</p></blockquote><p></p>
[QUOTE="SteveLM, post: 2617818, member: 113868"] After literally weeks of calm winds, we finally got a breezy day today, so I took the opportunity to test the Calypso outside along with my Kestrel. Using its mounting point, I attached the Calypso to a tripod and extended the legs and mast so that the Calypso was sitting at nearly the same height as my head (so about 6 feet above ground level). I walked out to a spot that was about as far away as I could get from the surrounding trees and houses. I aligned the Calypso so that its reference mark was pointed north and I stood several feet away also facing north. I fired up the Kestrel and, holding it at the same level as the Calypso, spent about 20 minutes watching the two wind measurements. Winds were gusting up to about 6-8 mph with average wind probably about 1.5 - 2 mph during the time I was outside. No pictures this time (not enough hands) but the Calypso and the Kestrel correlated very well whenever the wind gusted long enough for both instruments to get a steady reading. Wind speeds from both were usually within a small fraction of a mph; I often saw speeds that were only 0.1 mph different. Calypso's wind direction sensing was excellent and when the winds were steady enough (for a second or two) it always correlated with the wind direction against my face (note that when measuring wind speed, I tried to steer the Kestrel in the appropriate wind direction, sometimes using the Calypso as a cue to that direction). When the winds shifted, the speed measurements diverged, undoubtedly due to the particulars of each instrument's sensing technology. The Calypso's wind direction measurement lagged as well. I don't think that there was anything unexpected about this. Although this was not a day-long field test, my bottom line is that the Calypso delivers on its promise of accurate wind speed and direction. In the latter case, it is superior to the Kestrel which, of course, relies on you to sense wind direction. In other outdoor test attempts, I've been able to back off 20 to 25 feet before I start seeing Bluetooth connectivity problems, so the Calypso offers reasonable flexibility in locating it to get good wind measurements at a single nearby point. As someone else pointed out, it's not by itself a wind solution, but it certainly is an aid to helping you estimate a wind solution... [/QUOTE]
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