John Deere 450 User Manual download pdf (Page 16)

RTK Base Station Setup

DK01672,0000139 -19-22JUL11-2/2

450 MHz Amplier Specications (USA

and Canada only)

Model Number PF81443

Frequency Range 450-470 MHz

Input Power 0-2 W

Output Power

0-50 W

Current During Transmission

8 amp

Nominal Voltage

13.8 V DC

Internal fuse

15 amp

In/Out Impedance

50 ohm

Operating Voltage 11-15 V DC

Max Duty Cycle 100%

Operating Temperature -30 to 60° C

In RF Connector Female TNC

Out RF Connectors

Female N-Type

Power Connector Amphenol (EcoMate C016

20D003 110 12)

There are 3 connections located at the bottom of the

power amplier:

1. 12 VDC power input

2. RF input via TNC connector

3. RF output via N-Type connector

The connectors should only be nger-tight. Using tools can

over tighten and damage the RF and power connectors.

A 13.8 V power supply capable of providing a constant

10 amp to the amplier is required. Amplier operation

with insufcient voltage can lead to higher amplier

operating temperatures. Insufcient current can cause the

amplier to not amplify or only partially amplify the RF

signal. These conditions result in incomplete or no RTK

transmissions being received by the vehicle.

IMPORTANT: Make sure the antenna and coax

are attached before the amplier module is

powered ON or damage to the amplier could

PUPC000028 —UN—06DEC09

Amplier Connection Ports

occur. Do not remove the coax or antenna

while the amplier is powered ON. Avoid

water intrusion by keeping the connections

attached whenever possible.

Make sure the power connector is attached

and unpowered when handling the RF IN and

RF OUT connectors. The ground provided by

the power connector protects the amplier

against possible electrostatic discharge.

25-5

092711

PN=16

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John Deere 450 User Manual Page 16

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