July 2012

Doc ID 023182 Rev 1

1/18

AN4110

Application note

Using the SPIRIT1 transceiver under EN 300 220 at 868 MHz

By Placido De Vita

Introduction

The SPIRIT1 is a very low power RF transceiver, intended for RF wireless applications in the

sub-1 GHz band. It is designed to operate both in the licence-free ISM and SRD frequency

bands at 169, 315, 433, 868 and 915 MHz.

This application note outlines the expected performance when using the SPIRIT1 under EN

300 220-1 (v2.3.1, 2012-02) [2] in the 863 to 870 MHz band. This band is divided into sub-

bands where the application, the maximum radiated power, the channel spacing and/or the

mitigation requirement (duty cycle etc.) are different. The maximum allowed output power is

+27 dBm (500 mW) in 869.4 to 869.65 MHz, and it is variable in the other sub-bands (see

Table 5 in ETSI EN 300 220-1 v2.3.1 [2]). This application note relates to +10 dBm (10 mW)

applications.

For details on the regulatory limits in the 863.000 - 870.000 MHz SRD frequency bands,

please refer to the ETSI EN 300 220-1 v2.3.1 [2] and ERC recommendation 70-03 [3].

These can be downloaded from www.etsi.org and www.ero.dk respectively.

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