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Title: Auxiliary VHF transmitter to aid recovery of solar Argos/GPS PTTs

Author: Hansen, Christopher P.; Rumble, Mark A.; Gamo, R. Scott; Millspaugh, Joshua J.;

Date: 2014

Source: Res. Note RMRS-RN-72. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 11 p.

Publication Series: Research Note (RN)

Description: While conducting greater sage-grouse (Centrocercus urophasianus) research, we found that solar-powered global positioning systems platform transmitter terminals (GPS PTTs) can be lost if the solar panel does not receive adequate sunlight. Thus, we developed 5-g (mortality sensor included; Prototype A) and 9.8-g (no mortality sensor; Prototype B) auxiliary very high frequency transmitters that attach to the underside of GPS PTTs and work independently of the solar panel to aid in recovery of the units. Prototype A did not function properly because of an over-sensitive mortality sensor. Prototype B performed better; each was active upon recovery. Auxiliary transmitters were useful, but we encourage testing before deployment.

Keywords: auxiliary VHF transmitter, greater sage-grouse, radiotelemetry, solar Argos/GPS PTT

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Citation:


Hansen, Christopher P.; Rumble, Mark A.; Gamo, R. Scott; Millspaugh, Joshua J. 2014. Auxiliary VHF transmitter to aid recovery of solar Argos/GPS PTTs. Res. Note RMRS-RN-72. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 11 p.

 


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