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Chapter 6
DGPS Antenna
Check the connections between the antenna and receiver. Verify the connectors and cable are in good
condition.
Testing Voltage
Disconnect the antenna cable from the antenna.
1.
Test the voltage between the coaxial pin and cable shroud. Voltage should measure between 9V and 16 V
2.
DC. If the voltage tests within the normal range, check the cable resistance as explained in the Testing
Resistance section on page 48.
If the cable voltage measures less than 5V DC at the antenna connection, disconnect the antenna cable
3.
from the Phoenix 300 and measure the voltage on the back of the receiver.
If the voltage measured at the antenna connection on the back of the receiver measures below 5V DC, the
4.
receiver must be returned to Raven for repair. Contact a local Raven dealer for additional assistance.
Testing Resistance
An ohmmeter may be used to determine if the antenna cable is open or shorted. Normal resistance will be
measured between 66 and 70 Ohms.
Power
The front panel display should remain lit while power is applied.
Power Connection
The Phoenix 300 is designed to operate between
9V and 16V DC. The unit is reverse-voltage and
over-voltage protected to reduce the possibility of
damage during installation. The table below
identifies each pin and gives the wire colors for the
supplied cable.
Power Connector Pins
TABLE 1.
48
Pin
Description
1
+12 VDC Power Input
2
Not Used
3
Power Return (GND)
4
Not Used
Not Used
+12 VDC Power
Wire Color
Red
N/A
Black
N/A
Phoenix 300 Installation & Operation Manual
Ground
Not Used
Keyway
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