DISC 1G6559 - Caterpillar

The CR4xx data radio has a single LED on the front of the radio. Table 3 lists the LED states.
Table 5
LED Status    Description    
LED Off     No Power    
LED On Solid     The Radio has power, but is not synced with the base station.    
1 Hz flashing LED     The Radio has power.
The Radio is synchronized and receiving data.    
Irregular flashing LED     The Radio has power.
The Radio is synchronized, but the data is incomplete.    Machine Radio does not Receive Corrections
The machine radio does not receive corrections.Probable Causes
There is a Wireless Data Rate (WDR) mismatch between the base radio and the machine radio.
There is a baud rate mismatch between the GPS receiver and either the base radio or the rover radio.
There is a frequency mismatch between the base radio and the machine radio.
The base GPS receiver is not correctly configured to output corrections.
There is radio type mismatch between the base radio and rover radio.
There is external jamming or some other type of interference.
The machine is out of the range of the base radio.
The transmitter at the base radio has failed.
There is no power to the base radio.Problem Isolation
Use the "Machine Radio Configuration" option, found under the "Installation" menu in order to verify that the machine radio is configured to operate on the same frequency as the base radio. Refer to Systems Operation, "Installation Menu" for additional information.
Verify that the Wireless Mode settings are identical for all radios in the network. Use MCGFlash in order to verify the Wireless Data Rate (WDR).Note: MCGFlash is available in AccuGrade Office under "Tools". MCGFlash is also available on SISWeb under "Downloads / Additional Downloads". Refer to Special Instruction, REHS2585, "MCGFlash v3.1 User Guide" for additional information.
Verify that there is power to the base radio.
Verify that the rover radio is within range of the base radio. Use a repeater if necessary.
Jamming can occur if the rover radio is in close proximity to a powerful transmitter such as another radio or microwave/cellular tower.
Verify that the base radio is compatible with the TC450C or CR4xx radio. The radio must be a compatible Trimble or Pacific Crest radio that is broadcasting in the same frequency band and set to the same frequency as the rover radio.
In rare instances there can be a failure of the transmit portion of the base radio. It is possible to reconfigure the base radio as a machine (rover) radio and also to reconfigure a machine TC450C radio as a base radio. It is not possible to configure a CR4xx radio as a base radio.Machine Radio Receives Data when No Power is Supplied
The machine radio seems to receive data (that is, the TC450C green light remains on or the CR4xx light blinks at 1 Hz) even if power is removed from the base radio.Probable Causes
The TC450C machine radio is incorrectly configured as a base radio. The