1. Conforme nos acercamos al fin del milenio, hay muchos usuarios de  receptores GPS's que están preocupados por el efecto 2000. Esta es una información que he recogido de las páginas oficiales de Garmin, y por tanto se puede considerar una información fidedigna y oficial.

     GARMIN ha tenido en consideración los problemas causados por el cambio de milenio desde el principio del desarrollo de todos sus productos, y por tanto, todos sus productos van a funcionar correctamente una vez que llegue el año 2000. Aquellos receptores que muestren 2 dígitos mostrarán los dígitos 00 para indicar el año 2000; 01 para el año 2001, y así sucesivamente.
     Si tienes conectado tu Garmin a un plotter o a un programa de "moving map" usando la interface tipo NMEA , lo que debereis hacer es tener preguntar al fabricante del aparato o del programa, si sus equipos o programas reconocen o no los dos dígitos.

     Otro problema ha podido surgir el pasado 22 de Agosto 1999. En esta fecha, los satelites de la constelación NAVSTAR que usamos para posicionarnos con nuestros receptores, ha cambiado el número de semana que transmiten del 1023 al 0.  Este evento no causa errores de navegación en aquellos equipos de GARMIN que estuvieran funcionando en el momento del cambio del número. Pero en determinados casos, puede haber originado problemas en ciertos equipos. Esto es lo que se viene a llamar efecto EOW, o efecto End of Week (Fin de Semana).
    Estos problemas surgen fundamentalmente en algunos modelos antiguos de Garmin, que pueden  necesitar realizar un "Autolocate" o un "Search the sky" una vez que ha tenido lugar el eeeefecto EOW.
Garmin ha incluido en sus páginas WEB información para asistir a sus clientes en caso de que tengan este problema. Hay instrucciones específicas para cada modelo en la tabla de abajo.
    Algunos usuarios de GPS pueden requerir realizar un "Autolocate" cada vez que encienden su receptor durante un periodo que puede durar hasta 4 semanas. Sin emabrgo, para evitar este problema, garmin ha creado una serie de programas que puede evitar este problema rápida y fácilmente.

GARMIN is offering a free downloadable software application that will speed up the acquisition process. In order to use the software, you will need a PC/Interface cable for your GPS and an IBM-compatible computer with a working serial port. This application should not be used before August 22, 1999. Use of this application will help eliminate the period of slow acquisition. This program is offered as a service to our customers, but its use is not considered required or mandatory. The software is only useful during the one-month period between August 22, 1999 and September 21, 1999.

The information contained in this FAQ is based upon the results of testing and analysis performed by GARMIN using techniques intended to simulate reasonably anticipated Year 2000 ("Y2K") and/or GPS End of Week Number Rollover ("EOW") events and circumstances, based on information available in advance of the actual Y2K/EOW events. Due to the inability of GARMIN to control or precisely simulate the manner in which GPS satellites may be operated and perform during the actual Y2K/EOW events, the information contained in this document may prove erroneous. In addition, a product's performance described in this FAQ may prove erroneous when the product is operated in conjunction with incompatible equipment, software, or data. The information in this FAQ is advisory only and does not constitute an express or implied representation, warranty, or other binding legal obligation or commitment by GARMIN. GARMIN's obligations regarding GARMIN products shall continue to be governed exclusively by the terms and conditions under which GARMIN products are sold.
 

Product Name (Specific software versions have been listed for some units. Software version may be viewed on the startup page when unit is powered on.)	Is user intervention recommended for my unit for EOW?	Auto Locate Reset Sequence (Push and hold the indicated key while powering the unit on. Then release both keys and allow unit to acquire satellites in an open area for a minimum of 1-2 hours)	Additional Information or options
Fishfinder160	N/A	N/A
Fishfinder240	N/A	N/A
GBR21	N/A	N/A
GNC 250 (Software version 2.07 or lower)	YES	NONE	Acquisition Option
GNC 250 (Software version 2.08 or higher)	NO	NOT REQUIRED
GNC 300 (2.04 or lower)	YES	NONE	Acquisition Option
GNC 300 (2.05 or higher)	NO	NOT REQUIRED
GNS 430	NO	NOT REQUIRED
GPS 10	NO	N/A
GPS 12/12XL/48	NO	NOT REQUIRED
GPS 120	YES	PAGE + ON	Download  software application
GPS 120 XL	NO	NOT REQUIRED
GPS 125 Sounder	NO	NOT REQUIRED
GPS 126/128	NO	NOT REQUIRED
GPS 150 (3.01 or lower)	YES	NONE	Acquisition Option
GPS 150 (3.02 or higher)	NO	NOT REQUIRED
GPS 150XL/GNC 250XL	NO	NOT REQUIRED
GPS 155/165 (3.07 or lower)	YES	NONE	Acquisition Option
GPS 155/165 (3.08 or higher)	NO	NOT REQUIRED
GPS 155XL/ GNC 300XL	NO	NOT REQUIRED
GPS 20	NO	N/A
GPS 20 SL (2.04 or lower)	NO	N/A
GPS 20 SL (2.05 or higher)	NO	NOT REQUIRED
GPS 25 (3.01 or lower)	NO	N/A
GPS 25 (3.02 or higher)	NO	NOT REQUIRED
GPS 25 LP	NO	NOT REQUIRED
GPS30/31	NO	N/A
GPS35	NO	NOT REQUIRED
GPS 38/40/45/45XL (3.04 or lower)	YES	PAGE + ON	Download  software application
GPS 38/40/45/45XL (3.05 or higher)	NO	NOT REQUIRED
GPS 50	YES	Options	Download  software application
GPS 55 AVD	YES	Options	Download  software application
GPS 55 STD	YES	Options	Download  software application
GPS 65	YES	Options	Download  software application
GPS 75	YES	Options	Download  software application
GPS 80 (MultiTrac 8 receiver)	YES	PAGE + ON	Download  software application
GPS 80 (12 Channel)	NO	NOT REQUIRED
GPS 85	Yes	Options	Download  software application
GPS 89	YES	PAGE + ON	Download  software application
GPS 90	YES	PAGE + ON	Download  software application
GPS 92	NO	NOT REQUIRED
GPS 95 STD/AVD/XL	YES	Options	Download  software application
GPS II (2.04 or lower)	YES	PAGE + ON	Download  software application
GPS II (2.05 or higher)	NO	NOT REQUIRED
GPS II+	NO	NOT REQUIRED
GPS III	NO	NOT REQUIRED
GPSIII+	NO	NOT REQUIRED
GPS III Pilot	NO	NOT REQUIRED
GPS100 STD/AVD/MRN	YES		Acquisition Options
GPS100 MIL/SRVY	NO	N/A
GPSSRVYII	YES	0+ ON	Download  software application
GPSCOM 170	NO	NOT REQUIRED
GPSCOM 190	NO	NOT REQUIRED
GPSMAP 130/175/230	NO	NOT REQUIRED
GPSMAP 135/235	NO	NOT REQUIRED
GPSMAP 180/185	NO	NOT REQUIRED
GPSMAP 195	NO	NOT REQUIRED
GPSMAP200	NO	N/A
GPSMAP 205/210/220	YES	MARK + ON	Download  software application
GPSMAP 215/225	NO	NOT REQUIRED
Navtalk	NO	NOT REQUIRED
StreetPilot	NO	NOT REQUIRED
StreetPilot Colormap	NO	NOT REQUIRED
VHF 720, US	N/A	N/A

Important Legal Information and Disclaimer:

THE INFORMATION CONTAINED IN THIS DOCUMENT IS PROVIDED TO CUSTOMERS FOR THE SOLE PURPOSE OF ASSISTING IN PLANNING FOR THE Y2K AND EOW EVENTS AND DOES NOT CONSTITUTE AN EXPRESS OR IMPLIED WARRANTY OR REPRESENTATION OF ANY KIND WITH RESPECT TO ANY GARMIN PRODUCT. THIS DOCUMENT CONTAINS THE INFORMATION CURRENTLY AVAILABLE REGARDING THE COMPLIANCE OF GARMIN'S PRODUCTS TO THE STANDARDS SET FORTH HEREIN AND IS PROVIDED "AS IS."
SALE AND WARRANTY OF GARMIN PRODUCTS ARE GOVERNED EXCLUSIVELY BY THE TERMS AND CONDITIONS UNDER WHICH SUCH PRODUCTS ARE SOLD AND THE WARRANTIES CONTAINED THEREIN. THIS DOCUMENT SHALL NOT MODIFY ANY TERM OR CONDITION OF SUCH SALES CONTRACT OR PRODUCT WARRANTY.