dl-fldigi/fldigi_doxygen/user_src_docs/configOlivia.txt

42 wiersze
1.5 KiB
Plaintext

/**
\page olivia_configuration_page Olivia Configuration
\tableofcontents
<br>
\image html config-olivia.png "Description"
\image latex config-olivia.png "Description" width=5.0in
<br>
Olivia is a family of MFSK modes with a high redundancy Forward Error
Correction system similar to MT63. The family is very large, with 40 or
more different options, which can make it very difficult to work out which is
which. The mode works well on poor HF paths and has good sensitivity.
There are three popular modes, which have 8-FSK, 16-FSK and
32-FSK, thus having three, four or five bits per symbol. These
three modes can be selected without additional configuration. The
tone frequency spacing and integration period should always be left at
8 and 4 respectively unless you are experimenting with another station
running an Olivia modem that can be changed. These must always be
the same at both ends of the Olivia QSO. The modes have two
serious shortcomings - excessive bandwidth combined with slow typing
rate, and excessive latency which is the apparent typing delay caused
by the integration period.
<br>
Each Olivia transmission can start and end with two distinctive tones. These tones
are exactly at the lowest and uppermost tones for the selection of tones and bandwidth.
They can assist the receiving station in tuning the Olivia signal on the waterfall.
The start/stop tones can be disabled.
See \ref olivia_page "Operating Olivia" for additional information.
<br>
<br>
\ref olivia_configuration_page "Return to Top of Page"
<br>
\ref main_page "Return to Main Page"
*/