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Product Details

Model 20G, 20 Gram PTT

Model 20G, 20 Gram PTT

Size Data

Length 2.00 In. (50.8 mm)
Width 0.88 In. (22.6 mm)
Height 0.63 In. (16.0 mm)
Weight 20 Grams
Antenna Length 7.75 In. (196.85 mm)
Configurations Backpack, Leg Band, Subcutaneous anchor, Custom, Tubes or Loops

Operational Data:

Power Source Lithium Cell
Output Power 200 mW Standard (Ajustable)
Transmsission Frequency 401.664 MHz
Transmit Cycle 60-Second Repetition Rate Standard (Adjustable)
Operational Life 500* hours continuous; less in high temps.
Operating Temperature Range -20 to +50 Degrees Celsius
Sensor Data 4 bytes
Sensors Battery voltage, Duty Cycle Season, Activity, Temp.
Duty Cycles Single or Multi-Season Programmable Duty Cycle Timers

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Tracking Birds

North Star’s Bird Borne PTTs (PTT stands for “Platform Transmitter Terminal”) offer long operational life, high location accuracy, programmable duty cycles with multiple seasons, integrated sensors, and package sizes ranging from 9.5-110 grams. GPS PTTs are available from 22 grams on up, in solar and primary battery models. Conventional VHF transmitters can be incorporated into the package, if desired.

Sensors included in all North Star PTTs include temperature, activity, battery voltage and duty cycle season. GPS PTTs can provide heading , altitude, and speed. New GSM units for birds operate via cellular networks and provide 2-way capabilities for the first time ever from the back of a bird. North Star can deliver the PTTs and GSM devices as backpacks (typical configuration), leg mounts (for species such as cranes), neck mounts (for species such as swans), or patagial mounts. North Start also offers GPS loggers for birds with an integrated VHF transmitter beacon to aid in recovery.


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