- Add - causes the displayed call sign and grid locator to be added to
the database file CALL3.TXT . If an entry for this call sign already exists, you will be asked
if you want to replace it.
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- Auto - toggles ON or OFF timed sequencing of transmit and receive
periods.
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- Big Spectrum - display large waterfall spectrogram for most recently
decoded file. Time increases from top to bottom, frequency from left to right. This display can help you to
identify different types of signals and noise, distinguish wanted signals from birdies, etc.
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- Brightness - adjust brightness of waterfall spectrogram (FSK441 and
JT6M only; slider below large graphics area). Click Decode to see effect of change.
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- Burst - A burst is a received MS signal that is greater in duration
than a ping and contains part or all of the transmitted message. A burst length can be from 0.5sec to several
minutes duration. Burst length is relative to frequency. i.e. a given burst will propagate longer on 6M than 2M.
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- Clip - normally set to zero. Increase its value to apply soft, moderate, or hard clipping to a signal before
attempting to decode its message and to reduce the effects of static crashes, etc.
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- Contrast - adjust contrast of waterfall spectrogram (FSK441 and JT6M
only; slider below large graphics area). Click Decode to see the effect of a change.
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- Custom/Standard Texts - toggles between two sets of TX messages.
Custom texts can be used to store messages such as grid locator or contest information.
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- Decode - analyze most recently recorded or opened file, perhaps
after one or more decoding parameters (such as Freeze, Tol, Zap, AFC, or Clip) have been changed.
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- DF - the difference in frequency (Hz) between decoded signal and actual RX frequency.
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- Dsec - adjust UTC clock reading in ±1 s increments to manually
re-synchronize with UTC or with your QSO partner's computer. (In general, it is best to keep the Windows clock
set accurately and Dsec set to zero.)
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- Erase - clear all information in main text box and graphical
areas.
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- Freeze - search only frequencies within ±Tol Hz of Freeze DF. Freeze DF can be adjusted by using the F11/F12
keyboard function keys. (left/right keyboard arrows for Ver.5.8.x and before).
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- Gen Std Msgs - generate standard messages; also reset TX message
to 1 and Tol to 400 Hz.
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- Grid - after a successful Lookup, displays the six-digit grid
locator of the call sign in the To radio box. You can also enter a grid locator manually. If
only four digits of the locator are known, add a space.
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- Hot A / Hot B - these are the recommended or optimised qtf or
beam headings that are between 2 stations for a given time of day/year as calculated by WSJT software.
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- LogQSO - click to add an entry for To radio to the simple log file WSJT.LOG. Logged information
includes date, time, call sign, locator, band, and mode.
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- Lookup - search database file CALL3.TXT for entry in To radio.
If call sign is found, the station's grid locator is retrieved and used to calculate distance,
azimuth, elevation, and Doppler shift.
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- Monitor - start a series of recordings, perhaps to monitor a
calling frequency or to copy two other stations engaged in a QSO.
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- NB - blank short noise pulses from the received data before decoding.
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- Ping - ping can be described as a short duration bursts that
contains little or no information and is of <0.5sec duration.
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- Play - play most recently decoded file through sound card
speaker output. This button functions much like the "Play" button on a cassette recorder.
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- Rate In - if the first number in the lower-left status bar panel is outside the range 0.9995 to 1.0005, enter its stabilised
value here.
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- Rate Out - if the second number in the lower-left status bar panel is outside the range 0.9995 to 1.0005, enter its
stabilised value here.
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- Record - start recording audio noise from radio. The program
will record for the time entered in T/R Period, or until you press Stop. If Auto is ON, recording will stop when
the present T/R interval is finished; the data will then be plotted and decoded. This control works much like
the "Record" button on a cassette recorder.
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- Report - enter the signal report you wish to send to the other
station, then click Gen Std Msgs.
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- S - set minimum increase in signal that will be accepted as a ping.
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- Save Last - save most recently recorded file. (See also Save Decoded
and Save all, on the Save menu).
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- Status Bar - panels at the bottom of the WSJT screen for
displaying information such as file name, file position, RX audio level, and decoding parameters.
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- Stop - terminate a Record, Monitor, or Play operation. This control
functions much like the "Stop" button on a cassette recorder.
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- Tol - set decoder tolerance (in Hz) to frequency offsets. When DF
has been established and reduced to a small value by retuning the receiver, decrease the value of Tol to reduce
the probability of false decoding.
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- Tx 1-6 - transmit selected message. Transmission will continue until
the end of the present TX sequence or, if Auto is OFF, for the duration listed in the T/R Period box.
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- TX First - check this box if you want to transmit during the first
period of the timed T/R cycle. Uncheck it if your QSO partner is transmitting in the first period. In this context,
"first" is defined as transmitting during the first T/R interval of an hour.
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- TX Stop - terminate a transmission in progress.
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- To radio - call sign of station being called. Text entered in this
box becomes leading part of recorded file names.
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- Zap - filter out birdies (narrow band signals of approximately
constant amplitude) before attempting to decode.
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- F1 - display a list of keyboard shortcuts.
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- Shift F1 - display a list of special mouse commands.
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- F2 - display the Options screen.
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- F3 - toggle the status of Tx mute, which prevents switching into Tx mode.
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- F4 - clear the To radio and Grid boxes.
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- F5 - display reminders about what message to send.
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- F6 - open and decode next wave file in selected directory.
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- Shift F7 - set JT6M mode.
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- F10 - toggle focus between SpecJT and the main WSJT screen.
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