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Remote Station Engineering - Monuments

This page is maintained with specifications for monumentation components which represent the current best-practices employed by UNAVCO in Polar Permanent GPS Station designs. Specifications are subject to change as the design evolves, however the most current design will reside here.

  • Complete lists of permanent station components and tools, and a weight calculator, are maintained on the Documentation page.

    • Monumentation

    Component Photo Manufacturer Part Number Description Weight (lb) Cube (ft^3) Why?
    Polar Geodetic GPS Antenna Mast
    1-Meter
    		Tech2000
    220 Reef Lane
    Georgetown, TX 78628
    512-869-2450    		 1-m mast:
    DC-1M-F

    Set of 4 rock bolts:
    HWD-2-12     		Installs with four double-expansion rock bolts, nuts, and washers. Also available in custom heights.

    See Documentation section for installation instructions and supplier information.

    		 20
    (with bolts)    		 2
    (40"x9"x9")    		 Lightweight, strong, and easy to install with custom drill jig. Can be installed by an experienced person in as little as 1 hour.

    Used by the TAMDEF project in Antarctica, the POLENET project in Greenland and Antarctica, and other remote CGPS sites including Mauna Loa, Hawaii.
    Polar Geodetic GPS Antenna Mast
    2-Meter    		 Tech2000
    220 Reef Lane
    Georgetown, TX 78628
    512-869-2450    		 2-m mast:
    DC-LP

    Set of 4 rock bolts:
    		 Useful for areas of high snow accumulation, or for populated locations. Installs with four double-expansion rock bolts, nuts, and washers. Antenna cable is routed inside the monument. 40
    (with bolts)    		 6
    (80"x12"x12")    		 Lightweight and strong. Installs with same drill jig as 1-meter mast.

    Installed at selected sites in Greenland for the POLENET project.
    Pipe Mount Adapter for Snow Surface GPS Antenna Masts

    		T & E Tech
    3772 Puritan Way #9
    Erie CO 80516
    858-229-8478    		 PPS-TF-004 revE Mount adapter fits 1.5" (sch. 40) and 1" pipe sizes. Attach antenna to adapter with 5/8-11 x 1.25" zinc-plated socket-head bolt. Attach adapter to pipe by drilling and bolting through with 5/16" zinc-plated steel bolt and nylon locknut. 1 Aluminum pipe provides a versatile antenna mast for snow and ice surfaces. Pipe masts are not guyed.
    Cable Tie-Down McMaster Carr 69855K73 (12" length, for all cable tie-downs except 1-meter monument)

    69855K74 (18" length, for 1-meter monument)    		 Nylon-coated stainless steel reusable cable tie-down, 1/4" width. Used to secure cables to pipes. Secure and quick to install, easily uninstalled and repositioned if necessary.

    Installation Hardware

    Component Photo Manufacturer Part Number Description Weight (lb) Cube (ft^3) Why?
    Monument Drill Jig Tech2000
    220 Reef Lane
    Georgetown, TX 78628
    512-869-2450    		 DRILL JIG Single drill jig used for all Tech2000 masts up to 2 meters.

    See Documentation section for tool lists including drill jig components and accessories, as well as installation instructions and supplier information.

    		 25 2
    (24"x24"x6")    		 Allows accurate hole drilling for rapid installation of secure and level antenna masts.
    Rock Hammer Drill Hilti TE-7A CPC Professional Cordless hammer drill kit with additional accessories, including HIT-RE-500 epoxy.

    See Documentation section for tool lists, including Hammer Drill components and accessories.

    Note these lithium ion batteries may be difficult to ship air freight. UN number 3480 "Lithium ion batteries".

    Hilti Lithium Ion Battery MSDS    		 35 2
    (30"x16"x6")    		 Powerful, robust, and relatively lightweight.
     

    Last modified: 2019-12-24  02:12:28  America/Denver