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Related Manuals for Vaisala GA31
Summary of Contents for Vaisala GA31
- Page 1 USER'S GUIDE Vaisala GPS Antenna GA31 M210546EN-C...
- Page 2 The contents are subject to change without prior notice. Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user. All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of...
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Page 3: Table Of Contents
Selecting Installation Site............9 Installation ................10 CHAPTER 4 OPERATION AND MAINTENANCE ............11 Operation ................11 Preventive Maintenance ............11 CHAPTER 5 SPECIFICATIONS..................13 General Specifications............13 CHAPTER 6 PARTS LIST ....................15 APPENDIX A INSTALLATION DRAWINGS ..............17 VAISALA ________________________________________________________________________ 1... - Page 4 User's Guide ______________________________________________________________________ This page intentionally left blank. 2 ___________________________________________________________________ M210546EN-C...
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Page 5: Chapter 1 General Information
GENERAL INFORMATION This chapter provides general notes for the manual and the product. About This Manual This manual provides the information needed to use the Vaisala GPS Antenna GA31. Contents of This Manual This manual consists of the following chapters: - Chapter 1, General Information, provides important safety, revision history, and warranty information for the product. -
Page 6: Safety
Note highlights important information on using the product. ESD Protection Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits. Vaisala products are adequately protected against ESD for their intended use. However, it is possible to damage the product by delivering electrostatic discharges when touching, removing, or inserting any objects inside the equipment housing. -
Page 7: Trademarks
Microsoft Corporation in the United States and/or other countries. License Agreement All rights to any software are held by Vaisala or third parties. The customer is allowed to use the software only to the extent that is provided by the applicable supply contract or Software License Agreement. - Page 8 User's Guide ______________________________________________________________________ This page intentionally left blank. 6 ___________________________________________________________________ M210546EN-C...
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Page 9: Chapter 2 Product Overview
Left Hand Circular Polarisation (LHCP) and out-of-band signals. The antenna filters, amplifies and transfers the signals to the navigation unit for further processing. The GA31 differs from GA20, another GPS antenna version, in that it includes an N-to-TNC cable for connecting the antenna to sounding instruments. - Page 10 User's Guide ______________________________________________________________________ The threaded stainless-steel insert in the base of the antenna accepts a standard 1"-14 pole mount. The N connector is located inside the threaded insert allowing the antenna cable to be routed through the pole mount, which protects the cable connection from the environment for added reliability.
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Page 11: Chapter 3 Installation
Chapter 3 _____________________________________________________________ Installation CHAPTER 3 INSTALLATION This chapter provides information on GA31 installation and on the selection of a suitable site for the antenna. Selecting Installation Site Proper siting of the antenna is important for good performance. As a... -
Page 12: Installation
User's Guide ______________________________________________________________________ Installation There is protective grease on the antenna connector that must not be CAUTION removed. However, be careful not to let sand or dirt get to the connector during installation. The antenna can be mounted with the mounting flange on a foundation that is solid enough. -
Page 13: Operation And Maintenance
Chapter 4 ________________________________________________ Operation and Maintenance CHAPTER 4 OPERATION AND MAINTENANCE This chapter explains about the use of the GA31 antenna and about preventive maintenance. Operation The GA31 can be used in conjunction with Vaisala sounding instruments equipped with MWG processor boards. - Page 14 User's Guide ______________________________________________________________________ This page intentionally left blank. 12 __________________________________________________________________ M210546EN-C...
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Page 15: Chapter 5 Specifications
Power consumption 22 mA (nominal) Frequency 1575 MHz 50 Ω Output impedance VSWR Gain 35 dB (nominal) Noise figure 2.7 dB (nominal) Pass-band width 50 MHz Azimuth coverage 360° (omni-directional) Elevation coverage 0° to 90° elevation (hemispherical) VAISALA _______________________________________________________________________ 13... - Page 16 User's Guide ______________________________________________________________________ This page intentionally left blank. 14 __________________________________________________________________ M210546EN-C...
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Page 17: Chapter 6 Parts List
Chapter 6 ______________________________________________________________ Parts List CHAPTER 6 PARTS LIST Parts list for GA31 Antenna is shown in the following table. Table 2 Parts List for GA31 Antenna Ref. Part no. Item Manuf./Supplier GA45007 Antenna Element, with N Connector GA35002 Pedestal Assembly... - Page 18 User's Guide ______________________________________________________________________ This page intentionally left blank. 16 __________________________________________________________________ M210546EN-C...
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Page 19: Appendix Ainstallation Drawings
Appendix A ____________________________________________________ Installation Drawings APPENDIX A INSTALLATION DRAWINGS This chapter contains the installation drawing DRW2288818 for GA31. VAISALA _______________________________________________________________________ 17... - Page 20 User's Guide ______________________________________________________________________ 18 __________________________________________________________________ M210546EN-C...
- Page 21 Cable DRW216768 Length 33 m CASE 1 CASE 2 Weight 2.55 kg without cables Drawn Arch Serial Sheet Cooperator`s TKK2 080516 doc no Review Title GPS ANTENNA GA31 Appr Scale Design Dwg no Replaces INSTALLATION DRW228818 Replaced VAISALA _______________________________________________________________________ 19...
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