QRP Labs QCX 5W CW, Руководство по сборке

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QCX assembly Rev 1.08
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4.5 Keyer speed
The default keyer speed (in words per minute) at start-up is a configuration item in the Keyer menu
(see later). During operation of the radio, the keyer speed can be easily adjusted. Click the left
button once, and the speed will be displayed on the screen:
A14,006,50
Speed 12
Now you can adjust the speed using the rotary encoder. Press any button to return to the main
operating mode.
4.6 RIT
RIT (Receiver Incremental Tuning) allows the receive frequency to be adjusted while the transmit
frequency (the displayed VFO frequency) remains the same. It is useful if the other station is off-
tune, or drifting; other uses include working DX stations who may be listening on a different
frequency some kHz away from their transmit frequency.
This radio transceiver allows RIT values from -9,999Hz to +9,999Hz.
The default RIT at start-up is a configuration item in the VFO menu (see later). RIT can be easily
adjusted during ordinary operation by double-clicking the left button:
Now use the rotary encoder to tune the RIT. As you do so, you will hear the RIT immediately
applied to the VFO.
The tune rate of the RIT control is again indicated by the underlined digit (here 100Hz). In order to
change the tune rate, press and hold the centre button (in the rotary encoder shaft) and turn the
rotary encoder at the same time. You will see the cursor move to the left or right 1 digit at a time.
Again, the cursor under the comma indicates 500Hz tuning steps.
To cancel RIT tuning (reset the RIT to zero), press the right button (exit); this returns to main
operating mode and sets the RIT to zero.
To return to the main operating mode, press the left button (select). Now the RIT is displayed
under the VFO, for example:
A14,060,00
+0,300
Remember that cancelling RIT mode is easy, just double-click the left button to show the RIT
editing, then press the right button to cancel it (which means, set it to zero).