5. Radio
5.1 Introduction
The ZGM230SB27HGN3 module includes a 50 Ω-matched RFIO pin. On the ZGM230S Dev Kit (BRD2603A board), the pin is connec-
ted to an SMA connector, enabling conducted measurements or attachment of an external antenna for radiated measurements.
This section gives a short introduction to the RF performance of the BRD2603A board.
5.2 EMC Compliance
5.2.1 Introduction
BRD2603A Dev Kit fundamental and harmonic levels compliance is tested against the following standards:
• 868.4 MHz:
• ETSI EN300-220-1
• 908.4 MHz:
• FCC 15.247
• 921.4 MHz:
• ARIB-T108
5.2.2 EMC Regulation Emission Limits
5.2.2.1 ETSI EN 300-200-1 Emission Limits for the 868-868.6 MHz Band
Based on ETSI EN 300-220-1, the allowed maximum fundamental power for the 868-868.6 MHz band is 25 mW (14 dBm) e.r.p. both
for conducted and radiated measurements.
Note:
Further in this document Effective Isotropic Radiated Power (EIRP) will be used instead of Effective Radiated Power (e.r.p.) for
the comparison of the radiated limits and measurement results. The 25 mW e.r.p radiated limit is equivalent to 16.1 dBm EIRP.
For the unwanted emission limits, see the table below.
Table 5.1. ETSI EN 300-220-1 Spurious Domain Emission Limits in e.r.p. (and EIRP)
Frequency
47 MHz to 74 MHz
87.5 MHz to 118 MHz
174 MHz to 230 MHz
470 MHz to 862 MHz
Other frequencies
below 1000 MHz
Frequencies
above 1000 MHz
Operating
4 nW (-54 dBm e.r.p. = -51.8 dBm
EIRP)
250 nW (-36 dBm e.r.p. = -33.9 dBm
EIRP)
1 uW (-30 dBm e.r.p. = -27.9 dBm
EIRP)
Standby
2 nW (-57 dBm e.r.p. = -54.8 dBm
EIRP)
2 nW (-57 dBm e.r.p. = -54.8 dBm
EIRP)
20 nW (-47 dBm e.r.p. = -44.8 dBm
EIRP)
The above ETSI limits are also applied both for conducted and radiated measurements.
UG532: ZGM230S Dev Kit User's Guide
Radio
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