VLBI History

VLBI History

Construction of the MK II Correlator

1977
MK II Correlator under construction (March - September)
At the end of Oktober the first MK II Test Fringes are done

1978 - 1992
MK II correlation with various playback drives over the years
2" Ampex, 1" IVC, RCA VCR

1981
HP 1000F Computer for the MK III correlator arrived

1982
MK III Correlator with 6 crates at work
with 3 Honeywell H96 playback drives (November 82)

New MK IIIA correlator with 12 crates at work
First VLBA-type playback drive working

1994 - 1997
Playback drives 6 - 9 added to the system (Interferometrics)
Thin tape upgrade added to Playback drives 1 - 8

1999
New MK IV correlator
has been received in Bonn

1999
First test correlation at Dezember 1999
from left to right:
Kevin Dudevoir, Alan Whitney, Walter Alef, Bill Wildes, Heinz Fuchs, Horst Blaschke, Roger Capallo, Uwe Stursberg, Michael Wunderlich und Dave Graham

1999
celebration at December 1999

January 2000
software update
Mike Titus, Arno Müskens (GUIB), Dave Graham

MK IV correlator

MK IV correlator board

05.12 2002
1. correlation with Mark5-Module
Geo Experiment T2009 Station: MC

VLBI HPC cluster

Software Correlator
First Fringes: April 2010

VLBI History

VLBI History

Construction of the MK II Correlator

1978 - 1992MK II correlation with various playback drives over the years2" Ampex, 1" IVC, RCA VCR

1978 - 1992MK II correlation with various playback drives over the years2" Ampex, 1" IVC, RCA VCR

1981HP 1000F Computer for the MK III correlator arrived

1981HP 1000F Computer for the MK III correlator arrived

1982MK III Correlator with 6 crates at workwith 3 Honeywell H96 playback drives (November 82)

1982MK III Correlator with 6 crates at workwith 3 Honeywell H96 playback drives (November 82)

New MK IIIA correlator with 12 crates at workFirst VLBA-type playback drive working

New MK IIIA correlator with 12 crates at workFirst VLBA-type playback drive working

1994 - 1997Playback drives 6 - 9 added to the system (Interferometrics)Thin tape upgrade added to Playback drives 1 - 8

1994 - 1997Playback drives 6 - 9 added to the system (Interferometrics)Thin tape upgrade added to Playback drives 1 - 8

1999New MK IV correlatorhas been received in Bonn

1999New MK IV correlatorhas been received in Bonn

1999First test correlation at Dezember 1999from left to right:Kevin Dudevoir, Alan Whitney, Walter Alef, Bill Wildes, Heinz Fuchs, Horst Blaschke, Roger Capallo, Uwe Stursberg, Michael Wunderlich und Dave Graham

1999First test correlation at Dezember 1999from left to right:Kevin Dudevoir, Alan Whitney, Walter Alef, Bill Wildes, Heinz Fuchs, Horst Blaschke, Roger Capallo, Uwe Stursberg, Michael Wunderlich und Dave Graham

1999celebration at December 1999

1999celebration at December 1999

January 2000software updateMike Titus, Arno Müskens (GUIB), Dave Graham

January 2000software updateMike Titus, Arno Müskens (GUIB), Dave Graham

MK IV correlator

MK IV correlator

MK IV correlator board

MK IV correlator board

05.12 20021. correlation with Mark5-ModuleGeo Experiment T2009 Station: MC

05.12 20021. correlation with Mark5-ModuleGeo Experiment T2009 Station: MC

VLBI HPC clusterSoftware CorrelatorFirst Fringes: April 2010

VLBI HPC clusterSoftware CorrelatorFirst Fringes: April 2010

1978 - 1992
MK II correlation with various playback drives over the years
2" Ampex, 1" IVC, RCA VCR

1978 - 1992
MK II correlation with various playback drives over the years
2" Ampex, 1" IVC, RCA VCR

1981
HP 1000F Computer for the MK III correlator arrived

1981
HP 1000F Computer for the MK III correlator arrived

1982
MK III Correlator with 6 crates at work
with 3 Honeywell H96 playback drives (November 82)

1982
MK III Correlator with 6 crates at work
with 3 Honeywell H96 playback drives (November 82)

New MK IIIA correlator with 12 crates at work
First VLBA-type playback drive working

New MK IIIA correlator with 12 crates at work
First VLBA-type playback drive working

1994 - 1997
Playback drives 6 - 9 added to the system (Interferometrics)
Thin tape upgrade added to Playback drives 1 - 8

1994 - 1997
Playback drives 6 - 9 added to the system (Interferometrics)
Thin tape upgrade added to Playback drives 1 - 8

1999
New MK IV correlator
has been received in Bonn

1999
New MK IV correlator
has been received in Bonn

1999
First test correlation at Dezember 1999
from left to right:
Kevin Dudevoir, Alan Whitney, Walter Alef, Bill Wildes, Heinz Fuchs, Horst Blaschke, Roger Capallo, Uwe Stursberg, Michael Wunderlich und Dave Graham

1999
First test correlation at Dezember 1999
from left to right:
Kevin Dudevoir, Alan Whitney, Walter Alef, Bill Wildes, Heinz Fuchs, Horst Blaschke, Roger Capallo, Uwe Stursberg, Michael Wunderlich und Dave Graham

1999
celebration at December 1999

1999
celebration at December 1999

January 2000
software update
Mike Titus, Arno Müskens (GUIB), Dave Graham

January 2000
software update
Mike Titus, Arno Müskens (GUIB), Dave Graham

05.12 2002
1. correlation with Mark5-Module
Geo Experiment T2009 Station: MC

05.12 2002
1. correlation with Mark5-Module
Geo Experiment T2009 Station: MC

VLBI HPC cluster

Software Correlator
First Fringes: April 2010

VLBI HPC cluster

Software Correlator
First Fringes: April 2010