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    <Identification_Area>
        <logical_identifier>urn:nasa:pds:context:telescope:canberra.dss34_34m</logical_identifier>
        <version_id>1.0</version_id>
        <title>DSS-34 34-m Radio Telescope</title>
        <information_model_version>1.13.0.0</information_model_version>
        <product_class>Product_Context</product_class>
        <Modification_History>
            <Modification_Detail>
                <modification_date>2020-07-19</modification_date>
                <version_id>1.0</version_id>
                <description>
                    Original context file for the 34-m DSS-34 antenna near Canberra, Australia.
                </description>
            </Modification_Detail>
        </Modification_History>
    </Identification_Area>
    
    <Reference_List>
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:radiosci.documentation:dsn.810-005</lid_reference>
            <reference_type>instrument_to_document</reference_type>
            <comment>
                This reference is to a PDS collection containing several versions of the NASA Deep 
                Space Network (DSN) Telecommunications Link Design Handbook (Document 810-005).
                The Handbook is maintained in a modular format to provide interface 
                design data to flight projects using the DSN.  Modules are updated as appropriate.
                Each member product in the PDS collection is the set of modules as they applied
                at that point in time.  Modules include:
                001 Handbook Introduction
                101 70-m Subnet Telecommunications Interfaces
                102 26-m Subnet Telecommunications Interfaces (omitted in 2009 and later versions)
                103 34-m HEF Subnet Telecommunications Interfaces
                104 34-m BWG Antennas Telecommunications Interfaces
                105 Atmospheric and Environmental Effects
                106 Solar Corona and Solar Wind Effects
                107 Radio Source Catalog
                201 Frequency and Channel Assignments
                202 34-m and 70-m Doppler
                203 Sequential Ranging
                205 Command Service
                206 Telemetry General Information
                207 34-m and 70-m Telemetry Reception
                208 Telemetry Data Decoding
                209 Open-Loop Radio Science
                210 Delta Differrential One-way Ranging
                211 Wideband Very Long Baseline Interferometry
                214 Pseudonoise and Regenerative Ranging
                301 Coverage and Geometry
                302 Antenna Positioning
                303 Media Calibration
                304 Frequency and Timing
                305 Test Support
                901 Handbook Glossary
            </comment>
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        <Internal_Reference>
            <lid_reference>urn:nasa:pds:context:facility:observatory.dsn</lid_reference>
            <reference_type>telescope_to_facility</reference_type>
            <comment>
                This context product provides more information on the NASA Deep Space Network as a whole.
            </comment>
        </Internal_Reference>
        
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:context:facility:observatory.canberra</lid_reference>
            <reference_type>telescope_to_facility</reference_type>
            <comment>
                This context product provides more information on the Canberra Deep Space Communications Complex.
            </comment>
        </Internal_Reference>
        
        <Internal_Reference>
            <lid_reference>urn:nasa:pds:context:instrument:dsn.rss</lid_reference>
            <reference_type>telescope_to_instrument</reference_type>
            <comment>
                This context product provides more information on the commanding, radio tracking, and
                radio science instrumentation at the telescope.
            </comment>
        </Internal_Reference>
        
        <External_Reference>
            <reference_text>https://www.cdscc.nasa.gov/Pages/welcome.html</reference_text>
            <description>
                An overview of the Canberra Deep Space Communications Complex with photographs.
                Pull down the Antennas menu and select "DSS 34" for this antenna.
            </description>
        </External_Reference>
        
    </Reference_List>
    
    <Telescope>
        <aperture unit='m'>34</aperture>
        <telescope_longitude unit='deg'>148.981964</telescope_longitude>
        <telescope_latitude unit='deg'>-35.398479</telescope_latitude>
        <telescope_altitude unit='m'>692.020</telescope_altitude>
        <coordinate_source>WGS 84 Ellipsoid</coordinate_source>
        <description>
            Deep Space Station 34 (DSS-34) was built from 1994 to 1997. The antenna is very similar in 
            structure to DSS-45, however the transmission and reception equipment is located underground 
            rather than in a cone at the focal point of the dish. The radio signal is guided from the 
            subreflector through a hole in the surface of the dish to the receiving equipment via a 
            system of reflecting mirrors inside a large tube. The reverse path allows transmission.
            This design is called 'beam waveguide' (BWG); it reduces weight on the reflecting surface,
            insulates electronics from environmental factors including dish movement, and simplifies 
            maintenance. DSS-34 can transmit up to 20 kW at 2.1 and 7.1 GHz.  It can receive right- or
            left-circular polarization at 2.2, 8.4, and 26.2 GHz.  At 32.0 GHz it can receive both 
            polarizations simultaneously.  Antenna coordinates were converted from Table 5 in module
            301 (revision L) of the DSN Telecommunications Link Design Handbook (DSN document 810-005). 
            
            The Canberra Deep Space Communications Complex (CDSCC) is managed by the Commonwealth 
            Scientific and Industrial Research Organisation (CSIRO), Australia's national science 
            research agency. The CDSCC is at Tidbinbilla, about 35 km southwest of Canberra, ACT.
        </description>
    </Telescope>
    
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