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Press the [MODE] key to select one of the SSB (LSB or USB) modes. If you are operating at 7MHz
or below, please select LSB mode. If you are operating at 14MHz or above, please select USB
mode.
Short press [Power] key, the screen switches between ALC, SWR, AUD meter display.
SSB communication
When using hand keys, automatic keys, semi-automatic keys, an external electronic key control or
a computer-generated keyboard device, please follow the steps below:
CW communication
The QR20 supports full-band FM mode transmission and reception. It is usually used for FM
communication above 28MHz in short-wave communication. 29.6MHz is called the magic band by
the HAM community. It will be opened in a short time in the summer of the year, which is very
challenging.
FM communication
Insert your 3.5mm (three-phase or two-phase) plug into the KEY jack on the rear panel.
Short press [MODE] to select a CW mode (CW or CWR), "CW" mode uses the carrier input on the
USB side, and CWR (reverse) mode uses the input on the LSB side.
Long press [BAND] key to enter CW setting. Up and down arrow keys on keyboard
Select an option and use the left and right arrow keys to adjust the settings within the option.
3-1. KEY MODE left and right direction key selection content: manual electric key | automatic
electric key
3-2. KEY SPEED automatic key code rate, the greater is the
value, the faster is the speed.
3-3. TX-RX CW transmission and reception switching time,
the greater is the value, the greater is the delay.
3-4. STF CW side tone audio
3-5. STG CW side tone volume
3-6. TRAINING training mode, no transmission
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Push the PTT button on the speaker and talk in normal voice, observing the ALC meter display.
When the microphone enters the actual voice level, there will be a corresponding amplitude
display on the AUD meter. Release the PPT button to return to the receive mode.
If the ALC meter shows too high or too low, you can reset the microphone gain value as follows:
Long press the [AF] key for one second to enter the selection mode, use left and right keys to
select MIC, use the up-direction key to set value, long press [AF] key again to exit. Speak into the
microphone until AUD appears at the peak of your voice
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Transmitting operation (locked by default)
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