/usr/share/sdformat/1.5/transceiver.sdf is in sdformat-sdf 2.0.0-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | <element name="transceiver" required="0">
<description>These elements are specific to a wireless transceiver.</description>
<element name="essid" type="string" default="wireless" required="0">
<description>Service set identifier (network name)</description>
</element> <!-- End Essid -->
<element name="frequency" type="double" default="2442" required="0">
<description>Specifies the frequency of transmission in MHz</description>
</element> <!-- End Frequency -->
<element name="min_frequency" type="double" default="2412" required="0">
<description>Only a frequency range is filtered. Here we set the lower bound (MHz).
</description>
</element> <!-- End min_frequency -->
<element name="max_frequency" type="double" default="2484" required="0">
<description>Only a frequency range is filtered. Here we set the upper bound (MHz).
</description>
</element> <!-- End max_frequency -->
<element name="gain" type="double" default="2.5" required="1">
<description>Specifies the antenna gain in dBi</description>
</element> <!-- End Gain -->
<element name="power" type="double" default="14.50" required="1">
<description>Specifies the transmission power in dBm</description>
</element> <!-- End Power -->
<element name="sensitivity" type="double" default="-90" required="0">
<description>Mininum received signal power in dBm</description>
</element> <!-- End Sensitivity -->
</element> <!-- End Transceiver -->
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