Accurate timing is critical for the WSPR (etc) modes. With careful adjustment of the “System frq.”
parameter, the 20MHz oscillator will keep accurate enough time for WSPR for up to a week, even
without GPS.
Note that if using a GPS module and if there is a valid serial data stream properly decoded, then
the time is set automatically.
An accurate real time clock is not required other than for the WSPR beacon transmission timing.
A real time clock display is available that occupies the lower right corner of the display. The time
set in this menu item is the time displayed in this real time clock display. The time is displayed in
HH:MM format.
4.14
Other menu
This menu contains miscellaneous other settings which do not fit well in other configuration menu
categories.
7.1 Dbl. click
300
This is a NUMBER parameter which controls the decisions on what type of press has been made
to a button. By default, it is set to 300 milliseconds (as shown here) but you may alter this if you
wish.
It is the number of milliseconds after first pressing the button, at which certain decisions are made:
a) If you have not pressed the button again after this interval, then it means you intended a
single press.
b) If you are STILL pressing the button all this time later, 300 milliseconds after the first press,
then it means you executed a “single long press”.
c) If you pressed the button again before the 300 milliseconds elapsed, it is a “double click”.
7.2 Battery
OFF
This BOOLEAN parameter controls whether or not the battery icon is displayed on the screen at
the top right corner. Measurement and display of battery voltage may be useful to those operators
who intend to operate the radio from battery power, for example during portable operations.
In order to measure and display the battery voltage, it is necessary to jumper the “DVM”
input header pin to the supply voltage header pin. This hardware wiring is described in the
assembly manual.
QCX operating manual, firmware 1.07, manual edit 0.03
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