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<blockquote data-quote="telistomas" data-source="post: 937337" data-attributes="member: 90268"><p>The results from the naive users are very interesting! Six out of ten testers failed to find the two </p><p>targets using the Ortovox F1 in the allotted time. All the naive users did much better using the two </p><p>and three-antenna transceivers. The fastest was the Ortovox S1 (2 minutes 59 sec), the Ortovox d3 </p><p>(3 minutes 21 sec), Mammut (3 minutes 25 sec), the Tracker (3 minutes 26 sec,) and the Pieps (3 </p><p>minutes 34 sec). </p><p>Discussion </p><p>Both the guides and naive users liked the ease of use and the marking of multiple burials on the </p><p>screen of the Ortovox S1. The screen of the Ortovox S1 did not seem to be affected by the cold (at </p><p>times -15C to -20C). The Ortovox d3 was very easy to use but not as easy to find multiple burials </p><p>as the S1. Both the Ortovox model S1 and d3 also had the best attachment systems. </p><p>The Mammut Pulse worked well when correctly set up. It seemed to have too many parameters to </p><p>set and really needs a lock function to stop a desired setting from being changed. The authors also </p><p>feel that the “Pulse" feature should not be used on ethical grounds because of questionable </p><p>reliability. The attachment system is good. </p><p>The Pieps DSP worked well but the on-off slider switch which sticks out from the transceiver </p><p>seemed to present a risk of being easily broken. We also found the deactivation of the transceiver </p><p>with the special probe presents a risk of abandonment of the buried person if the transceiver is </p><p>turned off and the probe were to be removed by a person not knowing what had been done. We </p><p>would advise not to use this feature. The attachment system was not as easy to use as the others. </p><p>The Tracker DTS did better than we expected as a two-antenna transceiver being compared to </p><p>three-antenna models. The pinpointing with this transceiver was more difficult than with a threeantenna transceiver. The authors expect this company will update their transceiver in the near </p><p>future. When this is done we recommend they also update their attachment system, which was </p><p>determined to be the poorest. </p><p>Conclusions </p><p>Any transceiver is better than none! The new three-antenna transceivers are faster in finding a </p><p>buried person in an avalanche than the older single antenna transceiver. This is especially true for </p><p>the naive user. Guides or guiding companies using anything other than three-antenna transceivers </p><p>should consider upgrading. The simpler the transceiver is to use the better. Extra functions such </p><p>as the pulse detection with the Mammut and the probe switch with the Pieps may have serious </p><p>ethical problems and detract from the primary goal—find and rescue the buried person.</p><p>The “Test Box" from Ortovox for the Ortovox S1 appears to be a very good way to assure full </p><p>function of each S1 transceiver prior to its use. This will be especially useful for larger operations </p><p>such as heli and snow cat companies and rescue organizations. </p><p>Disclosures </p><p>This study was not supported financially or materially by any of the transceiver manufacturers </p><p>whose equipment was used in this study. The authors, Swangard, Sayer and Gunderson have no</p></blockquote><p></p>
[QUOTE="telistomas, post: 937337, member: 90268"] The results from the naive users are very interesting! Six out of ten testers failed to find the two targets using the Ortovox F1 in the allotted time. All the naive users did much better using the two and three-antenna transceivers. The fastest was the Ortovox S1 (2 minutes 59 sec), the Ortovox d3 (3 minutes 21 sec), Mammut (3 minutes 25 sec), the Tracker (3 minutes 26 sec,) and the Pieps (3 minutes 34 sec). Discussion Both the guides and naive users liked the ease of use and the marking of multiple burials on the screen of the Ortovox S1. The screen of the Ortovox S1 did not seem to be affected by the cold (at times -15C to -20C). The Ortovox d3 was very easy to use but not as easy to find multiple burials as the S1. Both the Ortovox model S1 and d3 also had the best attachment systems. The Mammut Pulse worked well when correctly set up. It seemed to have too many parameters to set and really needs a lock function to stop a desired setting from being changed. The authors also feel that the “Pulse" feature should not be used on ethical grounds because of questionable reliability. The attachment system is good. The Pieps DSP worked well but the on-off slider switch which sticks out from the transceiver seemed to present a risk of being easily broken. We also found the deactivation of the transceiver with the special probe presents a risk of abandonment of the buried person if the transceiver is turned off and the probe were to be removed by a person not knowing what had been done. We would advise not to use this feature. The attachment system was not as easy to use as the others. The Tracker DTS did better than we expected as a two-antenna transceiver being compared to three-antenna models. The pinpointing with this transceiver was more difficult than with a threeantenna transceiver. The authors expect this company will update their transceiver in the near future. When this is done we recommend they also update their attachment system, which was determined to be the poorest. Conclusions Any transceiver is better than none! The new three-antenna transceivers are faster in finding a buried person in an avalanche than the older single antenna transceiver. This is especially true for the naive user. Guides or guiding companies using anything other than three-antenna transceivers should consider upgrading. The simpler the transceiver is to use the better. Extra functions such as the pulse detection with the Mammut and the probe switch with the Pieps may have serious ethical problems and detract from the primary goal—find and rescue the buried person. The “Test Box" from Ortovox for the Ortovox S1 appears to be a very good way to assure full function of each S1 transceiver prior to its use. This will be especially useful for larger operations such as heli and snow cat companies and rescue organizations. Disclosures This study was not supported financially or materially by any of the transceiver manufacturers whose equipment was used in this study. The authors, Swangard, Sayer and Gunderson have no [/QUOTE]
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