Cross Point b.v. CP301MAXRXA Manual De Usuario
Technical Manual AM Systems
Connections
v4.4
Page 36 of 72
6.13.2
Dual antenna system (single aisle)
In case receivers are connected to the transceiver it is of great importance to connect the
FTP and analogue connection cables to the proper connectors on the TRX and RX
boards.
FTP and analogue connection cables to the proper connectors on the TRX and RX
boards.
Figure 21 shows the connections for a dual system (TRX + RX).
Figure 21: Dual antenna system connections
Backfield control
6.13.2.1
When only one receiver antenna is connected to a transceiver and this receiver is
connected to Bus A of the transceiver, then the detection of the B-side of the transceiver
can be reduced if required. This
connected to Bus A of the transceiver, then the detection of the B-side of the transceiver
can be reduced if required. This
is called ‘Back field control’.
When enabled, back field control makes it possible to reduce the back field detection of
the TRX antenna by switching of its internal receiver circuit. The TRX antenna will then
act as a transmitter only and detection is on the RX antenna only, resulting in a
concentrated detection area between the antennas.
the TRX antenna by switching of its internal receiver circuit. The TRX antenna will then
act as a transmitter only and detection is on the RX antenna only, resulting in a
concentrated detection area between the antennas.
Backfield control is only possible on a transceiver, not on a receiver!
How to enable/disable back field detection is described in chapter 0.
Power supply connections are not shown in the image but are described in 6.5.
TRX
RX
BUS A1
BUS B1
BUS A
BUS B
FTP
Receiver cable
Back field
control
Aisle 1
No back
field control
Side A
X