Campbell SAT HDR GOES Instruction Manual - Sat Hdr Goes Transmitter

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SAT HDR GOES Transmitter

1.  Introduction

The SAT HDR GOES transmitter supports one-way communication, via

satellite, from a Campbell Scientific datalogger to a ground receiving station.

Satellite telemetry offers a convenient telecommunication alternative for field

stations where phone lines or RF systems are impractical.

The SAT HDR GOES utilizes non-volatile memory to store configuration

information, such as platform ID, transmission baud rate, channel number,

scheduled transmission time, offset time and message window length.  The SAT

HDR GOES also has two, 16 K byte RAM buffers to store data—one buffer for

schedule transmissions and one buffer for random transmissions.  The clock is

maintained with a GPS receiver.

SAT HDR GOES supports the following certification standards:

•  300/1200 BPS DCPRS Certification Standard version 1.0b- March 2000

•  100 BPS Self-timed DCPRS Certification Standard - November 1981

•  100 BPS Random DCPRS Certification Standard - November 1981

•  SDI-12, A Serial-Digital Interface Standard for Microprocessor-based

Sensors version 1.2 - October 21, 1996.

High data rates are supported.  The SAT HDR GOES includes 4 serial

communication ports:

•  CS I/O for Campbell dataloggers.

•  Config is used with a computer to setup, test, and configure the SAT HDR

GOES.

•  AUX is an RS232 port used with non-Campbell Scientific dataloggers.

•  SDI-12 is used where only SDI-12 sensors are used and a datalogger is not

needed.

The CS I/O port is a Campbell Scientific Synchronous Device for

Communication (SDC) port.

The 21X and CR7 dataloggers do not support SDC.

The SAT HDR GOES is manufactured for Campbell Scientific, Inc. by Seimac,

Ltd., Nova Scotia, Canada.

NOTE