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Summary of Contents for Barrett 912 Series
- Page 1 User Guide 912 Multi-wire Broadband Dipole Antenna 150W P/N BC91200 (27m) P/N BCM91200/6 © Barrett Communications...
- Page 2 Halyards and pulleys required to hoist and support the antenna are not supplied, however they can be purchased sepa- rately from Barrett Communications (Halyard and Pulley Kit P/N BCA91201). It is recommended that the halyards used to support the antenna be either UV stabilised dacron cord or wire rope and that pulleys be of stainless steel construction.
- Page 3 Antenna Orientation The orientation of the antenna at the site is vitally important. In Horizontal configuration, the radiation is broadside to the antenna i.e. if transmissions need to travel in a predomi- nantly North-South direction, the antenna should be set up with the ends pointing East-West. Horizontal Configuration For Inverted V, the antenna becomes more suitable for NVIS, with radiation being directed at high angles, but omnidirec- tional around the antenna on a horizontal plane.
- Page 4 Installation - Inverted V Take the antenna in its box to its installation point, below the hoisting rope. Carefully remove antenna from box and - with RESISTOR LOAD FACING DOWN - lay on ground. Carefully remove tape and cable ties and extend each section one at a time until extended to full length. Attach a hoisting cord to the balun.
- Page 5 Installation - Horizontal Configuration Take the antenna in its box to its installation point, below the hoisting halyard. Carefully remove antenna from box and lay it on ground ensuring that the balun and resistor load are facing down. Ensure wires do not tangle. Carefully remove tape and cable ties and extend each section one at a time until extended to full length (see below).
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