GPS SOLUTIONS

GPS stands for the Global Positioning System, and is a 24-satellite constellation that can tell you where you are in three dimensions. GPS solutions can show you your exact position on the Earth anytime, in any weather, anywhere.

The Earliest GPS Solutions
The very first NAVSTAR GPS satellites were launched into space in 1978 proving the concept of time-based ranging using spread-spectrum radio signals and precise time derived from orbiting atomic clocks. In 1995, the U.S. Air Force Space Command formally declared that GPS met the requirements for Full Operational Capability.

How GPS Solutions Work
GPS navigation and position determination is based on measuring the distance from the user position to the precise locations of the GPS satellites as they orbit. By measuring the distance to four GPS satellites, it is possible to establish three coordinates of a user's position (latitude, longitude, and altitude) as well as precise Coordinated Universal Time (UTC).

Symmetricom's GPS Solutions
Symmetricom has been providing timing and synchronization GPS solutions for communications and satellite and ground based instrumentation from the beginning of the GPS program. Our time and frequency generators, receivers, and other GPS related instrumentation, were the early adopters of the GPS technology at its inception, and furthered its reliance on the GPS program as it grew to full operation with satellites hovering 20,000 plus kilometers over the earth.

Throughout we have provided our GPS solutions to the giants of this industry -- Hughes Aircraft, Boeing, British Aerospace, Northrop Grumman, Lockheed Martin, Raytheon, Grumman Aerospace, U.S. Navy, U.S. Air Force, U.S. Army, GE Aerospace, NASA and DISA/DISN.

Our GPS solutions have provided communication synchronization, precision time stamping, data correlation, aircraft system synchronization, range timing, remote data acquisition timing, radar system synchronization, launch system timing, time code translation/generation, station clock replacement, event time capture, and frequency measurement.

Flagship GPS Solutions
Symmetricom's flagship GPS and time code instrument is the XLi GPS Time & Frequency System. The XLi evolves from the successful XL-DC (TrueTime) and ExacTime (Datum) lines and supersedes them in most applications. Customers embrace its unprecedented flexibility, advanced features and network centric operation to provide effective and cost efficient solutions in ways no other time and frequency system can. The XLi delivers extremely high precision outputs and supports redundant power supplies and GPS receivers. This is vital for a slew of military applications that demand accuracy and high availability, including secure defense and intelligence communication systems, satellite ground stations, military test ranges and other critical government communication systems. The XLi continues to be an important infrastructure component to both domestic and international defense initiatives, in addition to the commercial success it has merited with industries like the test and measurement, process automation, power system control, television broadcast, research facilities and many others.

The Mark V GPS P(Y) Code Time and Frequency Receiver has similar capabilities as the XLi but uses a special military Selective Availability Anti-Spoofing (SAASM) GPS receiver. This assures U.S. Department of Defense and Government customers can obtain the most reliable GPS-based timing possible with accuracy better than 10 nanoseconds to UTC.

Our many GPS and Time Code Instruments continue to position us as the market leader in secure government communication and military markets.