Operator's Manual

PC18518—UN—03MAR14
Radio Self Test in Progress Popup
C—End Button
4. Select End button (C) to stop test.
Radio Self Test Diagnostics
Perform Radio Self Test when installing a new RTK radio
and record values. If an issue arises, run another self
test, and compare values to determine discrepancies.
Radio Self Test Diagnostics
Measurement Description Base Station Machine Notes
Number of Updates
Number of Radio Self Tests
performed.
0 or greater 0 or greater
Displays 0 if Radio Test has never been
performed.
Radio Distance (m)
Distance in meters between
linked machine radio and base
or repeater radio.
Invalid reading Varies
Accurate when beyond 1.6 km (1 mi.) from base
station.
Number of Disconnects
Number of disconnects during
test.
Invalid reading 0–2
If greater than 2, check base station setup, check
line of sight, and consider using repeaters.
Radio Temp (°C)
Internal radio temperature.
-30–60 °C -30–60 °C
If beyond acceptable range, performance may be
impacted.
Antenna Reected Power
Amount of transmitted power
reected back to transceiver.
Less than 30 is acceptable. 0–5
is best. May be invalid with
amplier.
Less than 30 is
acceptable
0–5 is best.
“- - -” with StarFire™
3000 Receiver is
acceptable.
If greater than 30, check antenna, cable, and all
connections. Consider replacing antenna.
Transmit Current
Current at base station.
Measurement may not be
available.
100–750 mA. Invalid reading
If machine has no signal, check power source and
connections.
Average Noise Level
Average power of background
noise and interference (- dBm).
Measurement is below 1 mW.
-120– -105: Good
-105– -95: Fair
-95– -80: Poor
-120– -105: Good
-105– -95: Fair
-95– -80: Poor
Values in Fair or Poor ranges indicate radio
interference. Values on Display do not show (-)
sign. Check local environment for possible
sources of interference near radio.
Average Signal Level
Average power of signal
received (- dBm). Measurement
is below 1 mW.
Invalid reading
-90: Stronger
-40: Weaker
Reading is good if it is
25 or more above
Average Noise Level
If difference between Average Signal Level and
Average Noise Level is less than 25, check base
station. RF link quality, power output, and receiver
sensitivity affect Average Signal Level.
Radio receiver sensitivity is -112, which means -87
is strongest Average Signal Level where margin of
25 applies. Margin of less than 25 may be
acceptable with “Stronger” signal readings.
Difference Between Signal and
Noise
Average Signal Level minus
Average Noise Level.
Invalid reading Greater than 25
Measurement is not displayed in test. Value is
determined by user. If difference between Average
Signal Level and Average Noise Level is less than
25, check base station for transmit issues and
environment for signal interference.
Overall Receive Rate
Base station signal packets
received at machine without
retry. As radio trafc increases,
receive levels may decrease.
Radio trafc increases with
Invalid reading
For mid to small-size
networks: Greater than
75% is acceptable.
Greater than 85% is
best.
Mid to small networks are typically 10 or fewer
radios. If below acceptable value, check signal,
noise levels, and line of sight. Value below 15
indicates weak link. Check base station for
transmit issues. Check local environment for
possible signal interference.
Troubleshooting
80-2