Duty Cycle requirements
The duty cycle is defined as the ratio, expressed as a percentage, of the maximum transmitter “on” time on
one or more carrier frequencies, relative to a one hour period. Where an acknowledgement message is
required, the additional transmitter “on” time shall be included.
There is a 10% duty cycle restriction on 433.050-434.790 MHz band in most of the EU member states.
The TX2S-433 is an RF module intended to be incorporated into a wide variety of applications and
finished products, Radiometrix has no control over the end use of the TX2S-433.The harmonised band
433.050 to 434.790 MHz as detailed in Annex 1 Band E of CEPT/ERC Recommendation 70-03 (which can
be downloaded at http://www.ero.dk/scripts/docmanag98/dm.dll/QueryDoc?Cat=Recommendation)
has list of countries where Duty Cycle restriction apply.
Module users should, therefore, ensure that they comply with the stated Duty Cycle requirements of the
version of CEPT/ERC Recommendation 70-03 in place at the time of incorporation of the TX2S-433 into
their product. It should be noted that the stated Duty Cycle must not be exceeded otherwise any approval
granted for the TX2S-433 will be invalidated.
Variants and ordering information
The TX2S is manufactured in several variants depending on their operating frequency:
The standard frequency is 433.92MHz.
TX2S-433-40-3V
TX2S-434-40-3V
TX3S-869-40-3V
433.92MHz
434.42MHz
869.85MHz
The standard TX2S is supplied with mounting pins but without the metal shield. A version
without mounting pins, suitable for surface mount assembly, is also available. For other
variants, please contact sales department.
Matching receivers:
RX2G-433-15
RX2G-433-64
RX2A-433-10
RX2A-433-64
433.92MHz, 15kb/s
433.92MHz, 64kb/s
433.92MHz, 10kb/s
433.92MHz, 64kb/s
RX2G-434-15
RX2G-434-64
RX2A-434-10
RX2A-434-64
434.42MHz, 15kb/s
434.42MHz, 64kb/s
434.42MHz, 10kb/s
434.42MHz, 64kb/s
RX3G-869.85-15
RX3G-869.85-64
RX3A-869.85-10
RX3A-869.85-64
869.85MHz, 15kb/s
869.85MHz, 64kb/s
869.85MHz, 10kb/s
869.85MHz, 64kb/s
Evaluation Platform: Universal Evaluation kit +TX2S carrier
Radiometrix Ltd, TX2S/TX3S Data Sheet
page 6
RADIOMETRIX [ RADIOMETRIX LTD ]
