Radiometrix Ltd, KTX2 Data Sheet

page 7

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 KTX2-433 is a 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 KTX2-433.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 KTX2-433 into

their product. It should be noted that the stated Duty Cycle must not be exceeded otherwise any approval

granted for the KTX2-433 will be invalidated.

Variants and ordering information

The KTX2 is available as a standard version:

KTX2-433

The standard frequency is 433.92MHz, for other frequency variants, please contact sales

department.

For all other variants please contact Sales department.

To make a complete code-hopping system:

Suitable Receiver module to use with KTX2:

RX2A-433-10

Suitable Decoder IC for use with RX2A:

KRX416-000-DIL

Or use a complete relay output board (includes RX2A module) for use with KTX2 modules

(mapping the four KTX2 function lines to four change-over relays)

KDEC-433-000