<para>Central frequency of the channel.</para>
- <para>For ISDB-T the channels are usally transmitted with an offset of 143kHz. E.g. a
+ <para>For ISDB-T the channels are usually transmitted with an offset of 143kHz. E.g. a
valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of
the channel which is 6MHz.</para>