[IGSSTATION-4915] Re: CEDU Frequency standard stability [SEC=UNCLASSIFIED]

[Nicholas.Dando at ga.gov.au]

Hello All,

The H-Maser at CEDU has had degraded frequency stability since 3 May 2012. Unfortunately the Trimble NetR8 may have been using this reference frequency (via auto detect function). The receiver was reverted to its internal oscillator at 2012-04-16T05:40Z. Please take this into account with your analysis. An updated site log has been submitted.

We apologize for any inconvenience.

Nicholas Dando
National Geospatial Reference Systems
Minerals and Natural Hazards Division  |  GEOSCIENCE AUSTRALIA
____________________________________________________________
Phone:  +61 2 6249 9552    Fax:  +61 2 6249 9999
Email:  Nicholas.Dando at ga.gov.au<mailto:Nicholas.Dando at ga.gov.au>    Web:  www.ga.gov.au<http://www.ga.gov.au/>
Cnr Jerrabomberra Avenue and Hindmarsh Drive Symonston ACT
GPO Box 378 Canberra ACT 2601 Australia
Applying geoscience to Australia's most important challenges
________________________________
From: Dando Nicholas
Sent: Thursday, 19 April 2012 2:32 PM
To: 'igsstation at igscb.jpl.nasa.gov'
Subject: CEDU Frequency standard stability [SEC=UNCLASSIFIED]

Hello All,

The frequency distribution system carrying 10MHz from the maser to the CEDU receiver has had an upgrade. During the approximate period: DOY 109, 00:00 - 02:00 UTC, the frequency stability would have been degraded. Please take this into account with your analysis. We apologize for any inconvenience.

Nick Dando

Nicholas Dando
National Geospatial Reference Systems
Minerals and Natural Hazards Division  |  GEOSCIENCE AUSTRALIA
____________________________________________________________
Phone:  +61 2 6249 9552    Fax:  +61 2 6249 9999
Email:  Nicholas.Dando at ga.gov.au<mailto:Nicholas.Dando at ga.gov.au>    Web:  www.ga.gov.au<http://www.ga.gov.au/>
Cnr Jerrabomberra Avenue and Hindmarsh Drive Symonston ACT
GPO Box 378 Canberra ACT 2601 Australia
Applying geoscience to Australia's most important challenges

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