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operations:acronyms
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operations:acronyms [2011/07/22 04:00] Jim Lovell created |
operations:acronyms [2011/10/26 06:37] (current) |
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| ^Acronym ^Meaning^ | ^Acronym ^Meaning^ | ||
| + | |AGC | Automatic Gain Control | | ||
| + | |CNS II clock | Takes signal from GPS antenna and provides a 1 PPS for comparison to other time sources (e.g. the maser) using the counters. Also provides time via a NTP server on (cnsshb, cnsske, cnssyg).phys.utas.edu.au | | ||
| |DBBC | Digital Base-Band Converter. Takes IF signals from the antenna and preforms filtering, tuning and digitisation of bands, then sends them to the Mark5 for recording| | |DBBC | Digital Base-Band Converter. Takes IF signals from the antenna and preforms filtering, tuning and digitisation of bands, then sends them to the Mark5 for recording| | ||
| - | |Mark5 | Data recording equipment. Takes digitised data from the DBBC and records it to one of two possible disk modules | | ||
| |IF | Intermediate Frequency. A signal mixed down to a lower frequency from its original RF (Radio Frequency) | | |IF | Intermediate Frequency. A signal mixed down to a lower frequency from its original RF (Radio Frequency) | | ||
| - | |RF | Radio Frequency. A radio signal that has not been mixed to a lower frequency | | + | |IF Unit | Takes the four IFs from the antenna (S and X band, LCP and RCP) and provides amplification and attenuation before splitting the signal to go to the DBBC, power sensor and spectrum analyser | |
| - | |CNS II clock | Takes signal from GPS antenna and provides a 1 PPS for comparison to other time sources (e.g. the maser) using the counters. Also provides time via a NTP server on cnss[hb|ke|yg] | | + | |
| |KVM | Keyboard, Video, Mouse. A switch box that takes keyboard, video and mouse inputs from multiple PCs and allows the user to switch between them and interact with the PC from a single location. The KVM switches at the sites are networked so that a remote user can connect to a computer at the console level | | |KVM | Keyboard, Video, Mouse. A switch box that takes keyboard, video and mouse inputs from multiple PCs and allows the user to switch between them and interact with the PC from a single location. The KVM switches at the sites are networked so that a remote user can connect to a computer at the console level | | ||
| + | |LCP | Left-hand Circular Polarisation | | ||
| + | |LNA | Low Noise Amplifier| | ||
| + | |Mark5 | Data recording equipment. Takes digitised data from the DBBC and records it to one of two possible disk modules | | ||
| |PCFS | PC Field System. Used extensively throughout geodetic VLBI observatories, a PC running the Field System software to control and monitor the antenna, recorder, sampler etc. The central computer for operating the observatory | | |PCFS | PC Field System. Used extensively throughout geodetic VLBI observatories, a PC running the Field System software to control and monitor the antenna, recorder, sampler etc. The central computer for operating the observatory | | ||
| - | | SML | Signal generator. Each site is equipped with a Rhode & Schwartz SML signal generator to generate test signals | | + | |PPS | Pulse Per Second. Refers to the 1 second time-ticks distributed to various instruments around the sites | |
| - | | IF Unit | Takes the four IFs from the antenna (S and X band, LCP and RCP) and provides amplification and attenuation before splitting the signal to go to the DBBC, power sensor and spectrum analyser | | + | |RCP | Right-hand Circular Polarisation | |
| - | | PPS | Pulse Per Second. Refers to the 1 second time-ticks distributed to various instruments around the sites | | + | |RF | Radio Frequency. A radio signal that has not been mixed to a lower frequency | |
| + | |S-band | Radio band covering 2 to 4 GHz. Our receivers cover approx 2.1 to 2.5 GHz only | | ||
| + | |SML | Signal generator. Each site is equipped with a Rhode & Schwartz SML signal generator to generate test signals | | ||
| + | |X-band | Radio band covering 8 to 12 GHz. Our receivers cover approx 8.1 to 9.1 GHz only | | ||
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/home/www/auscope/opswiki/data/attic/operations/acronyms.1311307252.txt.gz · Last modified: 2011/10/26 06:37 (external edit)
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