Testing PTTs

Before deploying your transmitter, it should be tested through the Argos system. Place the transmitter outside in the open. It is important to choose a site where the horizon is not obstructed by buildings, because your satellite pass may be just above the horizon. Place the PTT away from metal enclosures, with the antenna pointing up. (A fence post, wooden pole or the apex of a roof may provide good locations for this.)

Wrap the PTT in some insulating material such as expanded polystyrene or foam to simulate the insulation afforded by the bird’s feathers. This prevents rapid temperature fluctuations. Remove the magnet from the STOP position and leave the PTT there, if possible, for one complete duty cycle, or at least the ON period of the cycle. Log into Argos through Telnet or the Argos website to retrieve the results. Remember that it sometimes takes Argos over six hours to process the data and make it available (though it usually takes less than two hours).

Only after you are satisfied that you are receiving data from Argos, should you proceed with deploying the transmitter on the bird. Reset the timer again with the magnet while you are attaching the unit to the bird so that you do not have to wait for your first locations. Solar PTTs should be placed outside for six to eight hours to recharge before deployment.

If the transmitters are going to be deployed at a geographical location far from where they were tested, they should be allowed to transmit for at least one day close to the release site to initialize the Argos system. Alternatively, call Argos and ask them to initialize the system to the coordinates

Please refer to your user manual for complete instructions.

Choosing a PTT
Duty Cycle Timers
Placing an Order
Storing PTTs
Sending PTTs Back
Downloading the GPS Parsing Software  
Limited Warranty Information