User manual GARMIN GPS 20X GPS 20X TECHNICAL SPECIFICATIONS REV. A, JAN, 2008

[. . . ] GPS 20x TECHNICAL SPECIFICATIONS Garmin International, Inc. 151st Street Olathe, KS 66062 USA 190-00880-00, Revision A January 2008 a © 2008 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U. S. A. [. . . ] THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY, INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE. IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do not allow the exclusion of incidental or consequential damages, so the above limitations may not apply to you. Garmin retains the exclusive right to repair or replace the unit or software or offer a full refund of the purchase price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY. Macintosh® and Linux drivers are not available from Garmin. After the drivers are loaded, the device appears to the Windows operating system as a USB-connected device and appears in Device Manager as a Garmin USB Device. 1. 4 · · · · · · · · · FEATURES GPS receiver tracks and uses multiple satellites for fast, accurate positioning and velocity estimates. Differential DGPS capability using real-time WAAS corrections yields position errors of less than 3 meters. Compact design is ideal for applications with minimal space. Binary format data output over the USB interface transmits packets once per second. Refer to Appendix B: Garmin Binary Output Format. Downloadable Spanner application allows the GPS 20x to output NMEA 0183 sentences. Refer to section 3. 1 Transmitted NMEA 0183 Sentences. FLASH-based program allows new software revisions through a Web site download. Non-volatile memory does not require battery backup. Onboard rechargeable backup battery can maintain the real-time clock for up to 10 days. Configurable parameters include expected position, current time and date, and preferred position fix type (3D or automatic). 190-00880-00 GPS 20x Technical Specifications Page 3 Rev. A 1. 5 TECHNICAL SPECIFICATIONS Specifications are subject to change without notice. 1. 5. 1 Physical Characteristics 1. 5. 1. 1 Size 1. 7 in. (12 mm) in height 1. 5. 1. 2 Weight 1. 1 oz (31. 7 g) 1. 5. 1. 3 Color Silver 1. 5. 1. 4 Case Material Polycarbonate/Acrylonitrile-Butadiene-Styrene (PC/ABS) 1. 5. 1. 5 Cable Length 1 meter 1. 5. 2 Electrical Characteristics 1. 5. 2. 1 Input Voltage 4. 4­5. 5 Vdc 1. 5. 2. 2 Input Current 110 mA @ 5. 0 Vdc 1. 5. 2. 3 GPS Receiver Sensitivity -185 dBW minimum 1. 5. 2. 4 Environmental Characteristics · Operating Temperature: -30°C to +80°C (-22°F to +176°F) · Storage Temperature: -40°C to +90°C (-40°F to +194°F) 1. 5. 3 GPS Performance 1. 5. 3. 1 Receiver WAAS Enabled® GPS receiver continuously tracks and uses multiple satellites to compute and update your position. 1. 5. 3. 2 Acquisition Times · Reacquisition: Less than 2 seconds · · · Hot: Warm: Cold: Approx. 38 seconds (initial position, time, and almanac known; ephemeris unknown) Approx. [. . . ] A APPENDIX B: GARMIN BINARY OUTPUT FORMAT In Binary Output mode, GPS 20x will transmit packets once per second. The records must be enabled by commands to the unit. Refer to the Garmin Device Interface Specification found in the Garmin Device Interface SDK for details on how to form and parse Garmin packets over USB. At the time of this printing, this document is located on the Garmin Web site at: www. garmin. com/support/commProtocol. html. [. . . ]