Module mounting considerations
The module may be mounted vertically or bent horizontal to the motherboard. Good RF layout practice
should be observed – in particular, any ground return required by the antenna or feed should be connected
directly to the RF GND pin at the antenna end of the module, and not to the OV pin which is intended as
a DC ground only. All connecting tracks should be kept as short as possible to avoid any problems with
stray RF pickup.
If the connection between module and antenna does not form part of the antenna itself, it should be made
using 50Ω microstrip line or coax or a combination of both. It is desirable (but not essential) to fill all
unused PCB area around the module with ground plane.
The module may be potted if required in a viscous compound which cannot enter the screen can.
Warning:
DO NOT wash the module. It is not hermetically sealed.
Variants and ordering information
WRX2 receiver is manufactured in the 433.92MHz as standard:
WRX2-433-12
Matching Transmitters
TX2A-433-64 (10mW)
TX2H-433-64 (25mW)
TX2S-433-40-3V (1mw)
TX2S-433-40-3V-10mW
Evaluation platforms:
Universal Evaluation Kit, NBEK + SIL carrier
Other frequency variants can be supplied to individual customer requirements in the 433MHz
(European) band
Radiometrix Ltd.,
WRX2 data sheet
Page 7
RADIOMETRIX [ RADIOMETRIX LTD ]
