AN4103 Datasheet, PDF (1/20 Pages) STMicroelectronics – Using the SPIRIT1 transceiver under EN 300 220 at 169 MHz

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
documents can be downloaded from www.etsi.org and www.ero.dk.
May 2013
Doc ID 023130 Rev 1
1/20
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