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NASA-LLIS-1335
Lessons Learned – Ensure Test Facilities Can Accommodate "Test-as-You-Fly" (2002)
Year: 2003
Abstract: Abstract:
The Mars Exploration Rover UHF Transceiver failed to attain carrier lock in duplex mode during flight qualification testing. The cause was finally traced to RF reflections into the UHF receiver from the non-anechoic walls of the test chamber.
Ensure that primary test facilities are capable of the full range of tests that the facility may reasonably be expected to support. Ensure that test facilities for duplex RF testing are equipped with appropriate ferrite anechoic cones.
The Mars Exploration Rover UHF Transceiver failed to attain carrier lock in duplex mode during flight qualification testing. The cause was finally traced to RF reflections into the UHF receiver from the non-anechoic walls of the test chamber.
Ensure that primary test facilities are capable of the full range of tests that the facility may reasonably be expected to support. Ensure that test facilities for duplex RF testing are equipped with appropriate ferrite anechoic cones.
Subject: Communication Systems
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T17:59:44Z | |
| date available | 2017-09-04T17:59:44Z | |
| date copyright | 03/31/2003 | |
| date issued | 2003 | |
| identifier other | FUVEQCAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/182783 | |
| description abstract | Abstract: The Mars Exploration Rover UHF Transceiver failed to attain carrier lock in duplex mode during flight qualification testing. The cause was finally traced to RF reflections into the UHF receiver from the non-anechoic walls of the test chamber. Ensure that primary test facilities are capable of the full range of tests that the facility may reasonably be expected to support. Ensure that test facilities for duplex RF testing are equipped with appropriate ferrite anechoic cones. | |
| language | English | |
| title | NASA-LLIS-1335 | num |
| title | Lessons Learned – Ensure Test Facilities Can Accommodate "Test-as-You-Fly" (2002) | en |
| type | standard | |
| page | 3 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;2003 | |
| contenttype | fulltext | |
| subject keywords | Communication Systems | |
| subject keywords | communications | |
| subject keywords | Facilities | |
| subject keywords | Ground Equipment | |
| subject keywords | Hardware | |
| subject keywords | Industrial Operations | |
| subject keywords | Payloads | |
| subject keywords | Policy & Planning | |
| subject keywords | Radio Frequency Subsystem | |
| subject keywords | radio frequency test | |
| subject keywords | RF leakage | |
| subject keywords | Test & Verification | |
| subject keywords | Test Article | |
| subject keywords | Test Facility | |
| subject keywords | test-induced failure |