DENVER – The military did no advance testing on a specific type of military GPS receiver that had issues picking up locator signals after a alter in ground-control program, the Air Force said Monday.
The Air Force tested other equipment, but none of it contained the type of receiver that was unable to lock on to Global Positioning Technique satellites after the alter, said Joe Davidson, a spokesman for the Air Force Space & Missile Systems Middle.
The manufacturer of the receivers, Trimble Advanced & Military Systems, said it ran its own advance tests using specifications from the Air Force GPS Wing & found no issues.
"Once the upgrade (on the ground-control program) went live, the compatibility issues were immediately identified & Trimble worked with the GPS Wing to resolve them," Trimble spokeswoman Lea Ann McNabb said in an e-mail.
Davidson said earlier that the issue, which occurred in January, was identified in less than one weeks. A temporary fix was installed in all the receivers & a permanent fix is being distributed, they said.
Davidson said the Air Force's testers didn't have any copies of the affected receiver before the issue. The Air Force is now obtaining a more representative sample of the tens of thousands of GPS receivers in use, they said.
Officials would not say how lots of weapons or other systems were affected by the issue, but they said operations were halted in one program as a precaution.
They declined to identify the program, but an Air Force document briefly posted online last month indicated it was an unmanned Navy jet still under development.
The Air Force said the issue was caused by defective program in the Trimble GPS receivers. Trimble, a subsidiary of Sunnyvale, Calif.-based Trimble Navigation Ltd., received a $900,000 no-bid contract to help resolve the trouble.
The Global Positioning Technique makes use of 24 satellites beaming signals to Earth that can pinpoint a location using a receiver tuned to the satellite frequency. It is widely used by the military & in civilians devices like cell rings & automobile navigation systems.
The satellites are overseen by Air Force Space Command units at Schriever Air Force Base, Colo., & Los Angeles Air Force Base, Calif.
On Thursday, the Air Force designs to launch from Cape Canaveral Air Force Station, Fla., the first of a brand spanking new generation of GPS satellites expected to last longer & perform better.
The new satellites, known as Block IIF, have a design life of 12 years, faster processors, more memory & a brand spanking new signal for civilian makes use of. They are built by Boeing Co.
The Air Force tested other equipment, but none of it contained the type of receiver that was unable to lock on to Global Positioning Technique satellites after the alter, said Joe Davidson, a spokesman for the Air Force Space & Missile Systems Middle.
The manufacturer of the receivers, Trimble Advanced & Military Systems, said it ran its own advance tests using specifications from the Air Force GPS Wing & found no issues.
"Once the upgrade (on the ground-control program) went live, the compatibility issues were immediately identified & Trimble worked with the GPS Wing to resolve them," Trimble spokeswoman Lea Ann McNabb said in an e-mail.
Davidson said earlier that the issue, which occurred in January, was identified in less than one weeks. A temporary fix was installed in all the receivers & a permanent fix is being distributed, they said.
Davidson said the Air Force's testers didn't have any copies of the affected receiver before the issue. The Air Force is now obtaining a more representative sample of the tens of thousands of GPS receivers in use, they said.
Officials would not say how lots of weapons or other systems were affected by the issue, but they said operations were halted in one program as a precaution.
They declined to identify the program, but an Air Force document briefly posted online last month indicated it was an unmanned Navy jet still under development.
The Air Force said the issue was caused by defective program in the Trimble GPS receivers. Trimble, a subsidiary of Sunnyvale, Calif.-based Trimble Navigation Ltd., received a $900,000 no-bid contract to help resolve the trouble.
The Global Positioning Technique makes use of 24 satellites beaming signals to Earth that can pinpoint a location using a receiver tuned to the satellite frequency. It is widely used by the military & in civilians devices like cell rings & automobile navigation systems.
The satellites are overseen by Air Force Space Command units at Schriever Air Force Base, Colo., & Los Angeles Air Force Base, Calif.
On Thursday, the Air Force designs to launch from Cape Canaveral Air Force Station, Fla., the first of a brand spanking new generation of GPS satellites expected to last longer & perform better.
The new satellites, known as Block IIF, have a design life of 12 years, faster processors, more memory & a brand spanking new signal for civilian makes use of. They are built by Boeing Co.
0 komentar:
Post a Comment