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BARRETT 4050 HF SDR TRANSCEIVER - OPERATING AND INSTALLATION MANUAL
4050 Transceiver
Extension speaker supplied with Transceiver (P/N BCA40015)
External GPS Receiver option (P/N BCA40009)
Auxiliary connector
Coaxial / Control Cable (P/N 4017-01-01)
911 Automatic Antenna Tuner for Base Station Installations
Antenna
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can be used for base station installations, using the Barrett 911 automatic
antenna tuner. However, the following points should be considered:
The antenna should be mounted as far away as possible from buildings, trees,
vegetation and sources of electrical interference. If metallic masts or supports
are used, arrange insulators to ensure the antenna is spaced at least two
metres from the mast. Remember the radiating part of the antenna starts at
the tuner. The location of the bottom portion of the antenna is very important.
Horizontal wire antennas have maximum radiation broadside to the antenna
when the frequency is less than ¼ wavelength. Radiation is at a minimum at
the end points of the antenna. Inverted “V” installation of horizontal antennas
minimises the directivity and is recommended for omni-directional coverage.
High voltages are present on the antenna system. The antenna tuner and
antenna should be located or protected so that there is no possibility of acci-
dental contact.
Transceiver and Tuner Mounting
The Transceiver should be mounted in a suitable position allowing easy
operator access. The antenna tuner should be mounted, preferably out of the
weather, and as close to the ground (earth) point as possible. The interconnect
cable supplied with the antenna tuner should be routed, away from other
cables, back to the Transceiver and connected as indicated in the diagram. The
maximum interconnect cable should be less than 25 metres.
Содержание 4050 HF SDR
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