John Deere 450 User Manual
RTK Base Station Setup
DK01672,0000139 -19-22JUL11-2/2
450 MHz Amplifier Specifications (USA
and Canada only)
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)
20D003 110 12)
There are 3 connections located at the bottom of the
power amplifier:
1. 12 VDC power input
2. RF input via TNC connector
3. RF output via N-Type connector
2. RF input via TNC connector
3. RF output via N-Type connector
The connectors should only be finger-tight. Using tools can
over tighten and damage the RF and power connectors.
over tighten and damage the RF and power connectors.
A 13.8 V power supply capable of providing a constant
10 amp to the amplifier is required. Amplifier operation
with insufficient voltage can lead to higher amplifier
operating temperatures. Insufficient current can cause the
amplifier to not amplify or only partially amplify the RF
signal. These conditions result in incomplete or no RTK
transmissions being received by the vehicle.
10 amp to the amplifier is required. Amplifier operation
with insufficient voltage can lead to higher amplifier
operating temperatures. Insufficient current can cause the
amplifier 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 amplifier module is
powered ON or damage to the amplifier could
powered ON or damage to the amplifier could
PUPC000028
—UN—06DEC09
Amplifier Connection Ports
occur. Do not remove the coax or antenna
while the amplifier is powered ON. Avoid
water intrusion by keeping the connections
attached whenever possible.
while the amplifier 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 amplifier
against possible electrostatic discharge.
and unpowered when handling the RF IN and
RF OUT connectors. The ground provided by
the power connector protects the amplifier
against possible electrostatic discharge.
25-5
092711
PN=16