Vertex Standard VX-1400 Spezifikationen PDF herunterladen (Seite 21)

19VX-1400 OPERATING MANUAL

Typically, the ground connection consists of one or more 2.4 m (8’) copper-clad steel

rods, driven into the ground. If multiple ground rods are used, they should be configured

in a “V” configuration, and bonded together at the apex of the V which is nearest the

station location. Use a heavy, braided cable (such as the discarded shield from type RG-

213 coaxial cable) and strong cable clamps to secure the braided cables to the ground

rods. Be sure to weatherproof the connections to ensure many years of reliable service.

Use the same type of heavy, braided cable for the connections to the station ground bus

(described below).

Inside the station, a common ground bus consisting of a solid copper pipe of at least 25mm

(1”) diameter should be used. Another ideal ground bus may consist of a wide copper plate

(single-sided circuit board material is ideal) secured to the bottom of the operating desk.

Grounding connections from individual devices such as transceivers, power supplies, and

data communications devices should be made directly to the ground bus using a heavy,

braided cable.

Do not make ground connections from one electrical device to another, and thence to the

ground bus. This so-called “Daisy Chain” grounding technique may nullify any attempt at

effective radio frequency grounding. See the drawings below for examples of proper and

improper ground connections.

Inspect the ground system - inside the station as well as outside - on a regular basis so as

to ensure maximum performance and safety.

INSTALLATION

BASE STATION INSTALLATION

PROPER GROUND CONNECTION

Linear

Amp lifi er

Power

Supply

Transceiver

Transceiver Linear

Amp lifi er

Power

Supply

"Daisy Chain"

IMPROPER GROUND CONNECTION

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Vertex Standard VX-1400 Spezifikationen Seite 21