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 0V 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.
Variants and ordering information
The RX3G receivers are manufactured in several variants:
Data rate: Slower version:
7.8kHz baseband B/W,
(suffix -15)
50kHz baseband B/W,
(suffix -64)
50kHz baseband B/W,
(suffix -128)
data rate up to 15kb/s
data rate up to 64kb/s
data rate up to 128kb/s
Faster version:
Frequency: 868.30MHz (suffix –868.30)
869. 50MHz (suffix -869.50)
869.85MHz (suffix –869.85)
914.50MHz (suffix –914.50)
The following data rate variants are standard:
RX3G-869.85-15-5V-DS
RX3G-869.85-64-5V-DS
869.85MHz, 15kb/s Data Slicer for Non-bit balanced data
869.85MHz, 64kb/s Data Slicer for Non-bit balanced data
RX3G-869.85-15-5V
RX3G-869.85-64-5V
869.85MHz, 15kb/s Manchester Encoded data packet with preamble
869.85MHz, 64kb/s Manchester Encoded data packet with preamble
RX3G-869.85-128-5V
869.85MHz, 128kb/s
Regulator version:
RX3G-869.85-15-DS
RX3G-869.85-64-DS
RX3G-869.85-128
869.85MHz, 15kb/s
869.85MHz, 64kb/s
869.85MHz, 128kb
Matching Transmitters:
TX3B-869.85-64
869.85MHz
For other variants please contact the sales department
Evaluation platforms:
1. Universal Evaluation Kit
2. NBEK + SIL carrier
Radiometrix Ltd
RX3G data sheet
page 5
RADIOMETRIX [ RADIOMETRIX LTD ]
