User's Manual

120 20194-102 Paragon3 – 700/800MHz User Manual

2.7 Antenna

2.7.1 Overview

Paragon3 unit commonly uses three antennas (one transmit and two receive) unless a duplexer is used

with one of the receive antennas; then only two antennas would be needed. They should be mounted

according to any guidelines supplied with the antennas. For antennas placement and spacing, consult

System Engineering.

2.7.2 Cabling and Connection

1- Route good quality 50-ohm double-shielded coaxial cable(s) (e.g. RG-214 or Heliax) from the se-

lected antenna position(s) to the Paragon3 Radio assembly.

2- Terminate the RX-1 (bottom) and RX-2 (top) cable-ends at the SDR module rear position with N-

type connectors.

3- Similarly, terminate the TX cable-end at the Power Amp’s module rear position with an N-type

connector.

Caution:

When terminating RF cables use brand-name crimping tools (such as AMP, Jensen,

Crimp-Master, etc…) of the correct size for the cable and type of connector used.

Common pliers are NOT acceptable.

2.8 Completing the physical Installation.

Paragon3 products are factory-configured to user’s requirements and are shipped ready to run.

After new installations:

• Re-check that all connections are secure on the radio-modem assemblies (antennas, PC, power

cords etc.)

• Check that fuses are inserted.

• Turn power supplies ON.

You are now ready to check for normal operation (as per paragraph 2.9) and to run the Dataradio web

interface (described in section 4) for testing or trouble-shooting.

Any change(s) to the settings must be done via files saved on diskette and loaded into the unit using

the web interface program.

2.9 Checking out Normal Operation

1- Check that power is applied.

2- Check Radio assembly lights for proper operation as per section 3.1.1

3- Check for proper operation of the BSC’s LEDs.

4- Using the web interface program and an in-line wattmeter, check forward & reverse power to

confirm main antenna installation.

5- Using the web interface, check the RF Data Link with a mobile that can be heard.

If user application and mobiles are available, test the installation by going through a normal sequence

of transmitting and receiving messages.