Table of contents
Combined revision comparison
...
1. Run DiFX correlation on the 30sec dual-pol recording: ok
...
Spectrum was confirmed in the data: ok!
3. Michael Bremer has suggested before to test a 1st LO synth output comparison. One synth ("VLBI synthesizer"; R&S SMA 100A) is located jointly with the H-maser in a climate controlled housing and has about 10-15 meters of cable run to the correlator room to the LO Distribution units. Next to the LO Distribution sitsunits there is another 1st LO synthesizer for normal NOEMA operationin normal NOEMA use (R&S SMA 100A) that receives maser 5 MHz over a similar 10-15 meter cable run. Bremer suggests mixing both LO (with small tuning offset) to see thermal stability. Given that 5 MHz cable and "VLBI" LO cable run the same below-floor-tile route the comparison will probably compare phase stability of synthesizers between climate controlled vs correlator room aircon cooled.
...
Other changes:
- /body/p[31]/a/@class:
" external"⇒ "external" - /body/p[31]/a[2]/@class:
" external"⇒ "external"
Version from 13:01, 26 Jun 2019
...
3. Michael Bremer has suggested before to test a 1st LO synth output comparison. One synth ("VLBI synthesizer"; R&S SMA 100A) is located jointly with the H-maser in a climate controlled housing and has about 10-15 meters of cable run to the correlator room to the LO Distribution units. Next to the LO Distribution units there is another 1st LO synthesizer in normal NOEMA use (R&S SMA 100A) that receives maser 5 MHz over a similar 10-15 meter cable run. Bremer suggests mixing both LO (with small tuning offset) to see thermal stability. Given that 5 MHz cable and "VLBI" LO cable run the same below-floor-tile route the comparison will probably compare phase stability of synthesizers between climate controlled vs correlator room aircon cooled.
...
Current version
...
1. Run DiFX correlation on the 30sec dual-pol recording: ok
...
Spectrum was confirmed in the data: ok!
3. Michael Bremer has suggested a 1st LO synth output comparison. One synth ("VLBI synthesizer"; R&S SMA 100A) is located jointly with the H-maser in a climate controlled housing and has about 10-15 meters of cable run to the correlator room to the LO Distribution units. Next to the LO Distribution sits another 1st LO synthesizer for normal NOEMA operation (R&S SMA 100A) that receives maser 5 MHz over a similar 10-15 meter cable run. Bremer suggests mixing both LO (with small tuning offset) to see thermal stability. Given that 5 MHz cable and "VLBI" LO cable run the same below-floor-tile route the comparison will probably compare phase stability of synthesizers between climate controlled vs correlator room aircon cooled.
...
