User's Manual

NETNode
Phase 1 and 2 Units
NETNode
User Manual
NETNode-V2.3
2-20
DS000034 Unclassified
2.12. Antennas
Note: It is important only to power up the NETNode unit with the Antennas fitted.
Both antennas must be connected for normal operation. The units are supplied with
different types of panel mounted connectors. The phase 1 units are supplied with panel
mounted TNC connectors which carries the RF input and output. The antenna should be
connected by screwing it onto the TNC, but care should be taken to not over tighten the
connector.
The phase 2 plain box mesh units are supplied with panel mounted SMA connectors which
carry the RF input and output. The antenna should be connected by screwing it onto the
TNC, but care should be taken to not over tighten the connector.
The phase 2 robust box mesh units are supplied with panel mounted N-Type connectors
which carry the RF input and output. The antenna should be connected by screwing it onto
the TNC, but care should be taken to not over tighten the connector.
The units have the following RF output characteristics.
RF Spec
Model
Number
ending -
034047
Model
Number
ending -
115140
Model
Number
ending -
217250
Model
Number
ending -
440500
Model
Number
ending -
550600
Output
Frequency
2.170 to 2.50GHz
4.40 to 5.0GHz
5.6 to 5.9GHz
Output
Bandwidth
2.5/3/3.5MHz
2.5/3/3.5MHz
(5MHz)*
2.5/3/3.5MHz
(5MHz)*
2.5/3/3.5/5MHz
2.5/3/3.5MHz
Output Power
1W (nominal)
1W (nominal)
1W (nominal)
0.5W (nominal)
1W (nominal)
Output
Impedance
50 ohm
50 ohm
50 ohm
50 ohm
50 ohm
* Some later Phase 2 NETNode units at these frequencies can support 5MHz. Units supplied
after November 2010.
Note: It is recommended that the antennas be connected directly to the transmitter unit.
The use of RF cables at this point will degrade the performance of the system.