User's Manual

RTK Base Station Setup
SH20560,000011E 1909DEC091/1
Radio Power Setting to Meet Licensed ERP
The 450 MHz RTK system has been designed to meet a
wide range of possible configurations. This gives the end
user the ability to optimize the system for their specific
location and application. The end user must obtain a
site license from the local spectrum authorities. It is the
end user’s responsibility to ensure that 450 MHz RTK
system parameters are configured correctly. Frequency,
bandwidth, output power and antenna height must all
conform to the granted license.
The frequency, bandwidth and output power of the John
Deere 450 MHz radio are programmable by the StarFire™
receiver. The available ranges are:
Frequency 435 – 470 MHz
Frequency Resolution 12.5 kHz
Bandwidth 12.5 or 25 kHz
Radio Output Power
0.2 to 2.0 W
Amplifier Output Power
5.0 to 50.0 W
When installing a base station, the total output power of
the system must be adjusted to comply with the granted
license. Cable losses, connection losses and the antenna
gain must be considered when calculating the total system
output power. The radio output power is configured using
GreenStar 2 System™ Display. Equivalent Radiated
Power (ERP) of the radio should be adjusted to ensure
that the total 450 RTK system output power complies with
the license granted by the local spectrum authority. The
following tables can be used to determine the appropriate
setting.
Radio Only Power Output
No Coax 15 in. (4.6 m) 100 in. (30.5 m) 200 in. (61 m)
LRS455
Output
Power
Watts
2 dBi
Whip
5 dBi
Magnetic
Mount
7 dBi
Base
2 dBi
Whip
5 dBi
Magnetic
Mount
7 dBi
Base
2 dBi
Whip
5 dBi
Magnetic
Mount
7 dBi
Base
2 dBi
Whip
5 dBi
Magnetic
Mount
7 dBi
Base
2.0 3.2 6.3
—
2.8 5.6 8.9 2.0 3.9 6.2 1.2 2.5 3.9
1.6 2.5 5.0
—
2.2 4.5 7.1 1.6 3.1 4.9 1.0 2.0 3.1
1.3 2.0 4.0
—
1.8 3.6 5.6 1.2 2.5 3.9 0.8 1.6 2.5
1.0 1.6 3.2
—
1.4 2.8 4.5 1.0 2.0 3.1 0.6 1.2 2.0
0.8 1.3 2.5
—
1.1 2.2 3.6 0.8 1.6 2.5 0.5 1.0 1.6
0.6 1.0 2.0
—
0.9 1.8 2.8 0.6 1.2 2.0 0.4 0.8 1.2
0.5 0.8 1.6
—
0.7 1.4 2.2 0.5 1.0 1.6 0.3 0.6 1.0
0.4 0.6 1.3
—
0.6 1.1 1.8 0.4 0.8 1.2 0.2 0.5 0.8
0.3 0.5 1.0
—
0.4 0.9 1.4 0.3 0.6 1.0 0.2 0.4 0.6
0.3 0.4 0.8
—
0.4 0.7 1.1 0.2 0.5 0.8 0.2 0.3 0.5
0.2 0.3 0.6
—
0.3 0.6 0.9 0.2 0.4 0.6 0.1 0.2 0.4
Radio and Amplifier Power Output
No Coax 15 in. (4.6 m) 100 in. (30.5 m) 200 in. (61 m)
LRS455
Output
Power
Watts
2 dBi
Whip
5 dBi
Mag Mnt
7 dBi
Base
2 dBi
Whip
5 dBi
Mag Mnt
7 dBi
Base
2 dBi
Whip
5 dBi
Mag Mnt
7 dBi
Base
2 dBi
Whip
5 dBi
Mag Mnt
7 dBi
Base
2.0 79.2 158.1
—
70.6 140.9 223.3 48.9 97.5 154.5 30.8 61.5 97.5
1.6 62.9 125.6
—
56.1 111.9 177.4 38.8 77.4 122.7 24.5 48.9 77.4
1.3 50.0 99.8
—
44.6 88.9 140.9 30.8 61.5 97.5 19.5 38.8 61.5
1.0 39.7 79.2
—
35.4 70.6 111.9 24.5 48.9 77.4 15.5 30.8 48.9
0.8 31.5 62.9
—
28.1 56.1 88.9 19.5 38.8 61.5 12.3 24.5 38.8
0.6 25.1 50.0
—
22.3 44.6 70.6 15.5 30.8 48.9 9.7 19.5 30.8
0.5 19.9 39.7
—
17.7 35.4 56.1 12.3 24.5 38.8
7.7
15.5 24.5
0.4 15.8 31.5
—
14.1 28.1 44.6 9.7 19.5 30.8 6.2 12.3 19.5
0.3 12.6 25.1
—
11.2 22.3 35.4
7.7
15.5 24.5 4.9 9.7 15.5
0.3 10.0 19.9
—
8.9 17.7 28.1 6.2 12.3 19.5 3.9
7.7
12.3
0.2 7.9 15.8
—
7.0 14.1 22.3 4.9 9.7 15.4 3.1 6.1 9.7
GreenStar 2 System is a trademark of Deere & Company
1510
121509
PN=20