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Dataset

 
large steerable radar dish at Chilbolton Observatory in Hampshire

ITALSAT radio propagation measurements at 20GHz in the United Kingdom

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2012-05-25
DOI Publication Date: 2012-05-28
Download Stats: last 12 months

Abstract

Measurements of tropospheric attenuation (excess and total) made at Sparsholt in Hampshire, UK using the ITALSAT satellite F1 beacon signal at 20 GHz.

Citable as:  Science and Technology Facilities Council; Chilbolton Facility for Atmospheric and Radio Research; Ventouras, S.; Callaghan, S.A.; Wrench, C.L. (2012): ITALSAT radio propagation measurements at 20GHz in the United Kingdom. NCAS British Atmospheric Data Centre, 28 May 2012. doi:10.5285/3158D138-D592-4045-ADE4-B76CF9F42129. http://dx.doi.org/10.5285/3158D138-D592-4045-ADE4-B76CF9F42129
Abbreviation: Not defined
Keywords: CFARR, Chilbolton, radio propagation, 20 GHz

Details

Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__ACTIVITY_e6d8b012-a65d-11e1-94b7-00163e251233
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data are prepared by Chilbolton Facility for Atmospheric and Radio Research (CFARR) staff prior to submission to BADC for archiving.

Data Quality:
Data are checked by CFARR staff prior to submission to BADC
File Format:
Data are netCDF formatted

More Information (under review)


Introduction
Tropospheric attenuation measurements made at Sparsholt in Hampshire, UK using the ITALSAT satellite F1 beacon signal at 18.7 GHz. ITALSAT F1 (owned and operated by the Italian Space Agency) was in geostationary orbit at 13 degrees east, and it could be seen from the receiving station at an elevation angle of 30 degrees. The received signal was vertically polarised and was sampled once a second. North-south tracking of the satellite with the beacon receiver maintained ~20dB of dynamic range thought of the measurement period. The method applied to remove the nonatmospheric changes of the beacon signal and to establish the reference level from which to measure the excess and total attenuation is described in [Ventouras et.al., Long-term statistics of tropospheric attenuation from the Ka/U band ITALSAT satellite experiment in the United Kingdom, Radio Sci.,41,RS2007,doi:10.1029/2005RS003252]. The accuracy of fade level retrieval is estimated to be ~+/-0.5dB

Related Documents

No documents related to this record were found.

Process overview

This dataset was generated by instruments deployed on platforms as listed below.

Instrument/Platform pairings

ITALSAT 20GHz beacon receiver Deployed on: Sparsholt College, Hampshire, UK
Output Description None
  • units: dB
  • long_name: attenuation relative to clear sky. It does not include gaseous attenuation
  • var_id: excess_attenuation
  • names: attenuation relative to clear sky. It does not include gaseous attenuation
  • long_name: attenuation relative to vacuum. It includes all the propagation loss
  • var_id: total_attenuation
  • units: dB
  • names: attenuation relative to vacuum. It includes all the propagation loss
  • long_name: quality of both excess and total attenuation values
  • var_id: flag
  • names: quality of both excess and total attenuation values
  • units: seconds since 1997 - 04 - 01 00:00:00
  • long_name: time
  • var_id: time
  • names: time

Co-ordinate Variables

Coverage
Temporal Range
Start time:
1997-04-01T00:00:00
End time:
1998-12-31T00:00:00
Geographic Extent

 
51.0667°
 
-1.4330°
 
-1.4330°
 
51.0667°