Specifications

Introduction 1

Reliance Fundamentals

Introduction

This manual provides detailed technical reference information for the Z-Surveyor,

Z-FX, Z-Sensor, and Z-Eurocard (this group of products are commonly referred to as the

Z-Family). For information about physical characteristics, description, and front panel

operations, please refer to the receiver operations manual.

This manual assumes you have the following:

• A good working knowledge of surveying techniques

• A basic understanding of the Global Positioning System

• An operational receiver

If you are totally unfamiliar with GPS and/or surveying techniques, you may need more

information than this manual, or the receiver operation manual, provides. We suggest that

you read some of the many books and magazines on the subject of GPS surveying in order

to learn the basics.

We encourage you to take a moment now to read the system warranty and to send in your

warranty registration card. By doing so, you are assured of receiving news of all updates.

If you have any questions about your receiver, please contact your local distributor.

Performance Specifications

One of the most important functions of the receiver is providing real-time position

solutions with accuracy ranging from centimeter level to 100 meters. Table 1.1

summarizes the positioning modes and expected accuracy.

Table 1.1: Accuracy as Function of Mode

Positioning Mode

Typical Horizontal

Accuracy (2drms), 5

SVs, PDOP<4

Maximum Update

Rate

Maximum Operating

Range

Autonomous 100 meters with SA on 5Hz, (10Hz optional) Anywhere

RTCM code differential 1.0 meters + 10 ppm 5Hz, (10Hz optional) Several hundred

kilometers (depending

upon datalink)

Static (post-processed) 5mm + 1ppm 5Hz, (10Hz optional) Several hundred

kilometers (depending

upon satellite geometry)