Review on Enhance Your Navigation Experience with the Garmin 18x LVC GPS Navigator Unit by John Fuentes

The Garmin 18x LVC is an OEM wireless GPS device with a Coordinated Universal Time (UTC) per second aligned meter pulse output with a maximum error of 1.0 microseconds (1.0 ppm seconds ). ) Only the LVC type supplies a measuring pulse signal (pulses per second). As a retail item, this device is primarily used for very accurate timekeeping. In theory it could be used for navigation, but bare pins require you to solder the connector to the block and there are other non-LVC 18x models that have connectors from the factory. Pulse measurement accuracy, making them useless as reference clocks. You may be wondering why anyone would want a clock that is accurate to 1.0 microseconds. Clocks in computers are notoriously inaccurate, sometimes being up to an hour a day behind. So the internet is full of reference watches. People interested in timekeeping put a reference clock server on the network, and thousands of desktop PCs, also connected to the Internet, can query these servers to get their clocks accurate. The reference clock must be accurate due to the scatter in the distribution (ie it takes a little time for the client PC to get the time from the time server. Time servers with microsecond precision ensure that no client is ever more than 1/2). Seconds from UTC. Everything is automated. The user does nothing. It just happens. That's what this particular device is for from a retail perspective. Soldering is required to use this device. 18x USB, not 18x LVC, is handy for navigating through a laptop.