Roberts Gemini RD21 DAB 0 User Guide
![Roberts Gemini RD21 DAB 0 manual cover](/images/3c431cc6241d1443bc4e5732/thumbs/thumb175x175.webp)
To perform a factory reset on the Roberts Gemini RD21 DAB radio, press and hold the 'Menu' button until 'Factory Reset' is displayed. Use the tuning dial to select 'Yes', then press 'Select' to confirm.
First, ensure that the radio is properly connected to a power source. Check if the power adapter is functioning correctly. If the radio still does not turn on, try a different power outlet or consult a technician for further inspection.
To improve signal reception, fully extend the antenna and adjust its position. Place the radio near a window or in an open area. Avoid locations with electronic interference.
Yes, you can save your favorite radio stations. While listening to a station, press and hold one of the preset buttons until a confirmation message is displayed. The station is now saved to that preset number.
To set the alarm, press the 'Alarm' button, then use the tuning dial to set the desired alarm time. Select the alarm mode (radio or buzzer) and confirm your settings by pressing 'Select'.
If the display is blank, check if the radio is powered on. Adjust the brightness settings by pressing the 'Menu' button and navigating to 'Display Settings'. If the issue persists, a reset might be required.
To switch between DAB and FM modes, press the 'Mode' button on the radio until the desired mode is displayed. The radio will automatically scan for available stations in the selected mode.
If the radio loses stations after being turned off, ensure that the radio is plugged in to save the station settings. If using batteries, the memory may be lost when power is drained. Connect to a power supply for consistent memory retention.
Currently, the Roberts Gemini RD21 does not support user-upgradable firmware. Firmware updates, if available, must be performed by authorized service centers.
Regularly clean the RD21 with a dry, soft cloth. Avoid placing it in damp or dusty environments. Keep the antenna free from obstructions and periodically check power cables for wear and tear.