Tracking Wildllife
Low Profile D-cell collar
Low Profile D-cell collarLow Profile D-cell collar
Low Profile D-cell collarLow Profile D-cell collar
NSG-LD1 Component Weights
Housing and Hardware | 565 grams (Standard GPS antenna) |
495 grams (Micro GPS antenna) | |
Peripherals | VHF 30-55 grams (smaller available) |
Drop-off Mechanism 78-114 grams | |
Collar Average Weight Range | 665 grams (24” Collar) to 945 grams (36” collar, no peripherals) |
D-Cell Battery (alone) | 150 grams |
D-Cell Enclosure plus Board (alone) | 245 grams |
Note: Includes GPS Receiver and Globalstar Transmitter |
Antenna Weights (with Rexolite Cover)
Transmit Antenna | 60 grams |
MMIII GPS Antenna | 110 grams |
Standard GPS Antenna | 70 grams |
Micro Mouse GPS Antenna | 40 grams |
Battery Life Expectancy
Drop-off Battery Life | 3 years |
VHF Battery Life | 3+ years |
Collect/Transmit 8 GPS loc. p/day | 17–19 months |
Collect/Transmit 6 GPS loc. p/day | 24–26 months |
Collect/Transmit 4 GPS loc. p/day | 33–36 months |
Collect/Transmit 3 GPS loc. p/day | 42–45 months |
Note: Environmental conditions, such as wide variations in ambient temperatures, will reduce actual battery lives, particularly over extended deployments. |
General Data
Output Power | 150 mW |
Transmit Signal Length | 1.5 Seconds |
Temp Range | –40 to +50 Degrees Celsius |
Frequency | 1611.25 to 1618.75MHz |
Modulation | BPSK-modulated PRN Code |
GPS Engine | μBlox 16 Channel |
GPS Accuracy | +/— 10m horz, +/— 25 vert |
GPS Antenna | Active |
GPS Datum | WGS84 |
VHF Power Output (VHF Mortality Available) | 1—2mW, 30—45ppm |
Specified accuracy is 2.5 meters CEP and 5 meters SEP. CEP is Circular Error Probability. It is the radius of a horizontal circle, centered at the true antenna position, containing 50% of the fixes. SEP is Spherical Error Probability. It is the radius of a sphere, centered at the true antenna position, containing 50% of the fixes. | |
NOTE: We are turning off our GPS engine after 5 positions in a row (1 per second) are acquired with a horizontal accuracy of 5 meters or less. |