The development of Platform Transmitter Terminal (PTT) and its application for drifting buoys
Abstract
A PCM-PSK transmitter to be incorporated into a drifting buoy used in the ARGOS localization and data collection system was designed. It transmits 2 W at 401.65 MHz. A high-stability oscillator and a phase-locked loop circuit provide high frequency stability and enable the platform to be localized to within 1 km. The transmitter consists of two 25 x 9 cm printed circuit boards, a transmission board and a logic control board, weighing together 600 g. Current drain during transmission is 0.7 A. Average power consumption is 0.3 W.
- Publication:
-
In CNES Proc. of the ARGOS Users Conf. on Data Collection and Platform 9 p (SEE N85-24348 14-42
- Pub Date:
- 1981
- Bibcode:
- 1981dcls.confQ....T
- Keywords:
-
- Buoys;
- Data Collection Platforms;
- Ocean Data Acquisitions Systems;
- Radio Transmitters;
- Satellite Doppler Positioning;
- Argos System;
- Frequency Stability;
- Phase Locked Systems;
- Phase Shift Keying;
- Pulse Code Modulation;
- Ultrahigh Frequencies;
- Communications and Radar