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→Radio Fréquence
=== Radio Fréquence ===
=== Radio Fréquence ===
{{SPARKImage|Spark.IO-Core-TechInfo.png|800px}}
With the on board chip antenna, the peak return loss (S11) has been measured and verified to be in the excess of 20dB.
With the on board chip antenna, the peak return loss (S11) has been measured and verified to be in the excess of 20dB.
The transmission loss for the u.FL connector has been measured to be approximately 0.5 to 0.75dB.
The transmission loss for the u.FL connector has been measured to be approximately 0.5 to 0.75dB.
=== Les types de Core ===
Currently the Core is available in two flavors. With an on-board chip antenna or an uFL connector to connect an external antenna.
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{{Spark-Core-Materiel-TRAILER}}