May 2013

Doc ID 023130 Rev 1

1/20

AN4103

Application note

Using the SPIRIT1 transceiver under EN 300 220 at 169 MHz

By Placido De Vita

Introduction

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 license-free ISM and SRD frequency

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

This application note outlines the expected performance when using SPIRIT1 under EN 300

220-1 (v2.3.1, 2012-02) [2] in the 169.400 - 169.475 MHz band, meter reading and tracking

and tracing applications. The maximum allowed output power in this sub-band is +27 dBm

(500 mW), but this application note focuses on applications having output power of +10

dBm (10 mW).

For details on the regulatory limits in the 169.400 - 169.475 MHz SRD frequency bands,

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

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