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// Status=edited
At the center of the main window are a number of controls used when
making QSOs. Controls not relevant to a particular mode or submode
may be disabled or removed from the display.
//.Misc Controls Center
image::misc-controls-center.png[align="center",alt="Misc Controls Center"]
* Check *Tx even/1st* to transmit in even-numbered UTC minutes or
sequences, starting at 0. Uncheck this box to transmit in the odd
sequences. The correct selection is made automatically when you
double-click on a decoded text line, as described in the
<<TUTORIAL,Basic Operating Tutorial>>.
* Tx and Rx audio frequencies can be set automatically by
double-clicking decoded text or a signal in the waterfall. The
frequencies can also be adjusted using the spinner controls.
* You can force Tx frequency to the current Rx frequency by clicking
the triangle to the left of *F Tol*, or the reverse transformation by
clicking the corresponding downward-pointing button. Your on-the-air
frequency (normally that of your lowest tone) is the sum of dial
frequency and audio Tx frequency.
* Check the box *Hold Tx Freq* to ensure that the specified Tx
frequency is not changed automatically when you double-click on
decoded text or a signal in the waterfall.
* For modes lacking a multi-decode feature, or when *Enable
VHF/UHF/Microwave features* has been checked on the *File | Settings
| General* tab, the *F Tol* control sets a frequency tolerance range
over which decoding is attempted, centered on the Rx frequency.
* The *Report* control lets you change an automatically inserted
signal report. Typical reports for the various modes fall in the range
–30 to +20 dB.
+
TIP: Consider reducing power if your QSO partner reports your signal above -5 dB in one of the _WSJT-X_ slow modes. These are supposed to be weak signal modes!
* In some circumstances, especially on VHF and higher bands, you can
select a supported submode of the active mode by using the *Submode*
control. The *Sync* control sets a minimum threshold for establishing
time and frequency synchronization with a received signal.
* Spinner control *T/R nn s* sets sequence lengths for transmission
and reception in Q65, FST4, MSK144, and the fast JT9 submodes.
* Spinner control *Tx CQ nnn*, activated by a checkbox to its right,
facilitates calling CQ on a conventional calling frequency and
conducting any resulting QSOs on a different dial frequency. Its use
is described in the section on <<OFFSET_CQ,MSK144>>.
* Checkboxes at bottom center of the main window control special
features for particular operating modes:
** *Sh* enables shorthand messages in JT4, JT65, Q65, and MSK144
** *Fast* enables fast JT9 submodes
** *Auto Seq* enables auto-sequencing of Tx messages
** *Call 1st* enables automatic response to the first decoded
responder to your CQ
** *Tx6* toggles between two types of shorthand messages in JT4 and
Q65 modes
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