Extended Manual for RF919 v2.1
© 2024 page 25 of 63
7 Functions
7.1 Power on / Power off
7.1.1 Turn the radio on/off
Short press any key to activate the time display. Short press [ ] to turn on
the radio. You will hear a short Morse-code (“CQ”) as confirmation. When the
radio is working, long press [ ] for 2 seconds to turn it off. You will also hear
a short Morse-code (“QRT”) as confirmation.
Note: Before using the radio for the first time, please fully charge the two installed
batteries.
7.1.2 Set the sleep timer
When the time is displayed, long press [ ] for 2 seconds to set the sleep
timer. “90” appears on the secondary screen indicating the default value of 90
minutes. As long as the [ ] is blinking right beside the value you may decrease
the value by 10 with a short press of [ ] to choose the sleep time: 90, 80, 70,
60, 50, 40, 30, 20 and 10 minutes. After choosing the sleep time, the sleep symbol
[ ] is constantly shown on the secondary screen.
Note: The light of the power button will have different colors depending on the
current working state.
7.2 Adjust the volume
When the radio is working, short press [ ] or [ ] for single stepping or long
press [ ] or [ ] for continues alignment of the volume between “0” and “32”.
7.3 Listen to the radio
Starting with as low as just 2.3 MHz and without any gap going up to 999 MHz, all
radio frequency bands are covered. The frequency bands are selected using [ ]
, [ ] and [ ] (depending on the actual frequency band. Some of the bands also
support different demodulation types such as NFM, WFM, STEREO, AM, LSB or
USB.
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