Transmitting GPS Position by an Iridium Phone Submitted by F. Sigernes and Jeff Holmes, University Center in Svalbard (UNIS) in Longyearbyen, Norway The rather harsh environment of the arctic requires the UNIS faculty to keep track of their students out in the field. If an emergency situation occurs, the exact location of our students is reported automatically to the logistical department at UNIS. In our typical experiments one of our students is out in the field to sample snow temperatures. Should there be a problem the group needs to act quickly with accurate information for a rescue team. The complete design of this project is available for download, below. Photo taken by C. Jaedicke The core component in the system is a BASIC Stamp II microcontroller. Position is extracted from the NMEA sentences of the GPS by the controller and translated to a PDU formatted SMS. The message is submitted to the iridium phone by using standard AT – commands. The SMS message contains an e-mail address which is gated by the Iridium satellite network to the addressee via internet.   You may download the complete report of this application, entitled Transmitting GPS Position by an Iridium Phone, (note for WebDev => the prior link goes to the PDF) which includes all BASIC Stamp source code, communication protocol, design circuits and pictures of the physical and electro nic layout of the circuit inside the black box.