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38 lines
1.5 KiB
Plaintext
38 lines
1.5 KiB
Plaintext
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image::settings-advanced.png[align="center",alt="Settings Advanced"]
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_JT65 decoding parameters_
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- *Random erasure patterns* sets the number of pseudo-random trials
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used by the Franke-Taylor decoder, on a logarithmic scale. Larger
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numbers give slightly better sensitivity but take longer. For most
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purposes a good setting is 6 or 7.
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- *Aggressive decoding level* sets the threshold for acceptable
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decodes using Deep Search. Higher numbers will display more results
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with relatively low confidence levels.
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- Check the *Two-pass decoding* box to enable a second decoding pass
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after signals producing first-pass decodes have been subtracted
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from the received data.
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_Miscellaneous_
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- Set a positive number for *Degrade S/N of .wav file* to add known
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amounts of pseudo-random noise to data read from a .wav file
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previously saved by _WSJT_ or _WSJT-X_. To ensure that the resulting
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S/N degradation is close to that requested, set *Receiver bandwidth* to
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your best estimate of the receiver's effective noise bandwidth.
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- Set *Tx delay* to a number larger than the default 0.2 s to create
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a larger delay between execution of a command to enable PTT and onset
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of Tx audio.
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IMPORTANT: For the health of your T/R relays and external
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preamplifier, we strongly recommend using a hardware sequencer and
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testing to make sure that sequencing is correct.
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- Check the box *x 2 Tone spacing* to generate Tx audio with twice the
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normal tone spacing. This feature is intended for use with specialized
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LF/MF transmitters that divide the audio waveform by 2 before further
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processing.
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