User's Manual

Page 14
3.3 220 MHz Antenna
The TransAir PTC-3000 provides two N-Type connectors for connecting to 220 MHz
antennas. The table below lists the pinouts for the 220 MHz Antenna connectors.
Pin No.
Description
Center
RF
Outer
GND
Table 3-4 220 MHz Antenna Connector Pinouts
When selecting cables for connecting the PTC-3000 to 220 MHz antennas, quality is critical.
Poor quality cables can result in significant signal loss. Cable length should be kept at a
minimum to reduce signal loss.
Cable Type
dB/100 ft
dB/100 m
CFD-400
1.9
6.1
Table 3-5 Coaxial Cable Signal Loss at 220 MHz
3.4 3G Antenna
There is one TNC connector for connecting to a 3G antenna. The table below lists the
pinouts for the Active 3G Antenna connector.
Pin No.
Description
Center
RF
Outer
GND
Table 3-6 3G Antenna Connector Pinouts
3.5 GPS Antenna
There is one TNC connector for connecting to a GPS antenna. The table below lists the
pinouts for the GPS Antenna connector.
Pin No.
Description
Center
RF
Outer
GND
Table 3-7 GPS Antenna Connector Pinouts