TX2A RADIOMETRIX [Radiometrix Ltd], TX2A Datasheet - Page 7

• Manufacturer Part Number: TX2A
• Description: UHF FM Data Transmitter and Receiver Modules
• Manufacturer: RADIOMETRIX [Radiometrix Ltd]

Typical RSSI characteristic is shown below (this is for indicative purposes only and is not a guarantee of actual
RSSI characteristics):
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
50 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.
Radiometrix Ltd, TX2A/RX2G Data Sheet
Figure 5: Typical RSSI response
1100
1000
900
800
700
600
500
400
300
200
-130
-120
-110
-100
RF input level (dBm)
-90
-80
-70
-60
-50
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