User's Manual

GS2 Display iTC—450 MHz RTK
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RTK Configure Page
PUPC000026 —UN—05DEC09
Configure Radio Screen
The frequency and power settings for 900 MHz RTK are
fixed to comply with ISM band requirements. For 450
MHz RTK, these settings can be controlled and are the
responsibility of the end user. Besides the Network ID
on the RTK Main screen, there are four parameters that
manage the radio link between the vehicle and Base:
Radio Frequency, Bandwidth, Data Rate and Power.
The Radio Frequency is the center frequency of the link
shared between the Base and Rover.
The Bandwidth is the range of the frequency that the
transmitted signal is modulated. This range, or band, is
centered about the Radio frequency. For example, if the
radio is set at 460 MHz with a bandwidth of 12.5 kHz, then
the radio link will be contained within 460 ± 0.0125 MHz.
The Data Rate is the overtheair speed of the data link.
This baud rate is directly related to the bandwidth setting
of the radio. The signal to noise increases with larger
bandwidth. A larger bandwidth is therefore related to
higher baud rates. Two Data Rate settings are provided
for each bandwidth. L2 is the lower speed and provides
the maximum radio link range. L4 has twice the speed,
but comes at the cost of reduced range.
Press: MENU Button >> StarFire iTC™ Button >> RTK
Softkey >> Radio Configure Button
The output power control is only displayed when the
receiver is set to Quick Survey Base or Absolute base
Operating Modes. When the receiver is set as a Vehicle,
the radio output power is set to its lowest output power
since it is a receiver only.
The cancel button disregards any input to the Radio
Configure screen and returns the user to the RTK Main
page.
StarFire iTC is a trademark of Deere & Company
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121509
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