RFI TLA4100 Montageanleitung

Installation Sheet

TLA4100/4200

Low Profile Transit Antenna

800-960, 701-2700 & 5700-5800 MHz

GPS (for TLA4200)

The TLA4100/4200 Antenna is designed specifically for rail, light rail

& bus applications and other similarly demanding transit or stationary

applications.

The TLA4100/4200 can be installed with or without a ground plane.

Maximum gain is achieved when a ground plane of greater than 1m2is

used.

1. Introduction

These instructions provide a guide to installing a TLA4100/TLA4200 on the roof of a vehicle.

2. Installation

The method of installation will depend on the type of roof (i.e. material, thickness etc.). It is recommended that this

information is obtained from the vehicle builder prior to installation.

3. Roof Preparation

The area of the roof where the antenna is to be mounted should be free of paint, non-conductive surface treatment, dirt,

corrosion, soot of any kind, oil or grease.

Determine the area where the antenna is to be mounted allowing suitable clearances, and ensuring the mounting area

is flat. Ideally the antenna will be installed at the highest position on the roof structure with no obstructions at the same

height for at least 1m around the antenna. The antenna is shaped with minimal wind loading in mind. Mount the antenna

with the longest dimension of the antenna running parallel with the direction of travel of the vehicle.

4. Installation

4.1 Corrosion

The TLA4100 & TLA4200 are designed using materials and surface finishes that have been selected for their resistance

to corrosion. However, the risk and severity of corrosion will depend on the composition of the mounting surface.

Awareness of the roof material is critical to ensure that the likelihood of corrosion is mitigated.

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Model Number Frequency VSWR Gain

TLA4100

800-960 MHz

1710-2700 MHz

5700-5800 MHz

<2:1 over operating band 5dBi (using a 1m2 ground plane)

TLA4200

800-960 MHz

1710-2700 MHz

5700-5800 MHz

GPS = 1575.42 MHz

<2:1 over operating band 5dBi (using a 1m2 ground plane)

Specifications

Electrical

Mechanical

Overall dimensions mm 100(W) x 200(L) x 90(H) includes gasket

Radome material UV Stabilised Plastic Moulding

Mount 4 x M6 screws (not included)

Termination Antenna Port = Fixed N Female (TLA4100)

GPS Port = Fixed TNC female (TLA4200)

In cases where the antenna is mounted in harsh environmental and industrial conditions, and in particular on a stainless

steel surface, the risk of galvanic corrosion between the antenna base plate and roof is increased. In these instances we

recommend:

I. Application of an electrically conductive primer (commercial zinc spray) to the roof where the antenna

is to be mounted

II. Application of a suitable sealer:

- around the antenna base plate & roof junction,

- around the base plate & radome junction,

- to fill the antenna mounting screw holes.

4.2 Mounting the Antenna

Use the Mounting Detail drawing as a guide (or the actual antenna base plate) to mark out the mounting hole

positions for drilling. Ensure there are no obstructions inside the roof structure at the mounting position. Drill holes to

accommodate M6 screws.

Use the Mounting Detail drawing as a guide (or the actual antenna base plate) to mark out the connector position(s) for

drilling / cutting / punching. Ensure there are no obstructions inside the roof structure at the mounting position. Drill / cut

/ punch holes to accommodate the connector(s). Hole diameters shown on the Mounting detail drawing allow room for

diameter of the mating connector(s). ****Only the TLA4200 requires a hole for the GPS connector.

NOTE: To meet high voltage protection specifications for applications involving overhead wires, it is necessary to

ensure electrically conductive contact between the base of the antenna and the conductive roof of the vehicle.

4.3 Sealing

The TLA4100/TLA4200 incorporates a sealing gasket. The antenna needs to be mounted on a mechanically stable

surface with good electrical contact between the antenna and the vehicle’s roof. The antenna gasket also requires

sufficient compression to ensure a weather proof seal.

In normal situations, we recommend sealing of the antenna base and mounting screw holes with an appropriate sealant.

The sealant must be liberally applied all around the antenna. Refer to the installation diagram below:

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installation continued

5. Testing the Antenna

Using appropriate test equipment, check the VSWR.

6. Connection of GPS (TLA4200)

Connect to GPS receiver and test functionality (TLA4200).

Installation Sheet

TLA4100/4200

Low Profile Transit Antenna

800-960, 701-2700 & 5700-5800 MHz

GPS (for TLA4200)

INS-41232-1 rfiwireless.com.au3

Installation Sheet

TLA4100/4200

Low Profile Transit Antenna

800-960, 701-2700 & 5700-5800 MHz

GPS (for TLA4200)

NOT TO SCALE.

IMPORTANT: THIS IS NOT A TEMPLATE FOR DRILLING.

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