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The Hemisphere GPS A100 Smart Antenna combines a GPS antenna with a GPS receiver featuring Hemisphere' s new high-performance Crescent OEM module.

Introduction
The Crescent A100 fits into a very durable, compact enclosure. The Crescent A100 also features COAST and e-Dif technologies. COAST software enables Hemisphere receivers to utilize old differential GPS ( DGPS) correction data for 40 minutes or more without affecting the quality of positioning. When using COAST, receivers are less likely to be affected by differential GPS signal outages due to signal blockages, weak signals or interference.
COAST software enables Hemisphere receivers to utilize old differential GPS ( DGPS) correction data for 40 minutes or more without significantly affecting the quality of positioning. When using COAST, receivers are less likely to be affected by differential GPS signal outages due to signal blockages, weak signals or interference. No competing products offer this flexibility.
e-Dif software enables Hemisphere receivers to achieve DGPS-quality positioning accuracies without the need for a differential signal - meaning no recurring subscription fees. e-Dif typically maintains less than a one-meter drift during 40-minute periods. It is ideal for locations where other differential services are limited or expensive. In regions where differential signals are freely available, e-Dif provides reliable back-up.
The Crescent A100 will replace Hemisphere' s existing GPS smart antenna products - the Seres and AgIQ - and those under the brands of Hemisphere' s OEM partners, including agricultural industry partners.

Features
60 cm accuracy, 95% of the time ( when used in conjunction with an external DGPS beacon receiver. COAST technology maintains accurate solutions for 40 minutes or more after loss of differential signal. Status lights make signal acquisition easy to monitor and configure.
especially fast start-up and signal reacquisition times
update rates of up to 20Hz
radar-simulated pulse output to determine ground speed
CAN and serial communication for compatibility with many devices and interfaces
an LED that conveniently indicates when the unit has power, when it' s tracking GPS, and when it has a DGPS solution
easy mounting, using fixed or magnetic options
low, compact profile to avoid potential overhead obstructions