1. Introduction
The TechniSat DIGITRADIO 21 is a compact DAB+ and FM radio designed for under-cabinet installation, ideal for kitchens or other spaces where a space-saving audio solution is desired. It features digital radio reception (DAB+), traditional FM radio, Bluetooth audio streaming, and a clear color display. This manual provides essential information for the safe and efficient use of your device.
2. Safety Information
- Read all instructions carefully before operating the device.
- Keep the device away from water, moisture, and direct heat sources.
- Ensure proper ventilation around the unit to prevent overheating.
- Only use the provided power adapter.
- Do not attempt to open or repair the device yourself. Refer all servicing to qualified personnel.
- Clean the device with a soft, dry cloth. Do not use liquid cleaners.
3. Package Contents
Verify that all items are present in the package:
- TechniSat DIGITRADIO 21 Unit
- Power Adapter
- Mounting Material (screws, mounting plate)
- User Manual (this document)
4. Product Overview
4.1 Front Panel Controls and Display

Image 4.1: Front view of the TechniSat DIGITRADIO 21. This image displays the central 2.8-inch color TFT display, the large volume knob on the left, and the scroll/select knob on the right. Surrounding buttons include Standby, Mode/Alarm, Sleep, Snooze/Dimmer, Info/Menu, and preset buttons 1, 2, 3+.
- Display: 2.8-inch TFT color display for showing station information, time, and menu options.
- Volume Knob: Rotate to adjust volume.
- Standby Button: Powers the unit on or off.
- Mode/Alarm Button: Switches between radio modes (DAB+, FM, Bluetooth) and accesses alarm settings.
- Sleep Button: Activates the sleep timer function.
- Snooze/Dimmer Button: Snoozes the alarm or adjusts display brightness.
- Info/Menu Button: Displays additional information or accesses the main menu.
- Preset Buttons (1, 2, 3+): Quickly access stored favorite stations.
- Scroll/Select Knob: Rotate to navigate menus or tune stations, press to confirm selection.
4.2 Rear Panel Connections

Image 4.2: Rear view of the TechniSat DIGITRADIO 21. This image highlights the power input port (DC IN) and the 3.5mm headphone jack located on the back of the unit.
- DC IN: Power adapter connection port.
- Headphone Jack (3.5mm): For connecting headphones for private listening.
5. Setup
5.1 Mounting the Radio
The DIGITRADIO 21 is designed for under-cabinet mounting. The included mounting plate and screws facilitate installation.
- Select a suitable location under a cabinet or shelf, ensuring sufficient space for the unit and access to controls.
- Position the mounting plate and mark the screw holes.
- Drill pilot holes if necessary.
- Secure the mounting plate to the underside of the cabinet/shelf using the provided screws.
- Slide the DIGITRADIO 21 onto the mounted plate until it clicks securely into place.
Alternatively, the radio can be used as a standalone unit on a flat surface.
5.2 Power Connection
- Connect the power adapter cable to the "DC IN" port on the rear of the DIGITRADIO 21.
- Plug the power adapter into a suitable wall outlet.
- The unit will power on or enter standby mode.
6. Operating Instructions
6.1 Power On/Off
- Press the Standby button to turn the radio on or off.
6.2 Mode Selection
- Press the Mode/Alarm button repeatedly to cycle through available modes: DAB+, FM, Bluetooth.
6.3 DAB+ Radio Operation
- Select DAB+ mode using the Mode/Alarm button.
- The radio will automatically scan for available DAB+ stations upon first use or if no stations are found.
- Rotate the Scroll/Select knob to browse the list of available stations.
- Press the Scroll/Select knob to select and listen to a station.
- To store a favorite station: While listening, press and hold one of the Preset buttons (1, 2, 3+) until "Preset Saved" appears on the display.
- To recall a favorite station: Briefly press the corresponding Preset button.
6.4 FM Radio Operation
- Select FM mode using the Mode/Alarm button.
- Rotate the Scroll/Select knob to manually tune to a frequency.
- To auto-scan for the next available station, press and hold the Scroll/Select knob.
- To store a favorite station: While listening, press and hold one of the Preset buttons (1, 2, 3+) until "Preset Saved" appears on the display.
- To recall a favorite station: Briefly press the corresponding Preset button.
6.5 Bluetooth Audio Streaming
- Select Bluetooth mode using the Mode/Alarm button. The display will show "Bluetooth Pairing".
- On your Bluetooth-enabled device (e.g., smartphone, tablet), enable Bluetooth and search for available devices.
- Select "DIGITRADIO 21" from the list of devices to pair.
- Once paired, you can stream audio from your device to the radio.
6.6 Alarm, Sleep Timer, and Snooze
- Alarm: Press and hold the Mode/Alarm button to enter alarm settings. Use the Scroll/Select knob to set time, source, and volume.
- Sleep Timer: Press the Sleep button repeatedly to set a sleep timer (e.g., 15, 30, 60 minutes) after which the radio will automatically turn off.
- Snooze: When the alarm sounds, press the Snooze/Dimmer button to temporarily silence it for a set period.
6.7 Display Settings
- Press the Snooze/Dimmer button (when not snoozing an alarm) to adjust the display brightness.
- Press the Info/Menu button to cycle through different display information (e.g., program type, frequency, date/time).
7. Maintenance
- Cleaning: Wipe the radio with a soft, dry, lint-free cloth. Do not use abrasive cleaners, waxes, or solvents.
- Storage: If storing the unit for an extended period, disconnect it from the power supply and store it in a cool, dry place.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power adapter not connected or faulty outlet. | Ensure power adapter is securely connected and the outlet is functional. |
| Poor DAB+ / FM reception | Weak signal, antenna position. | Adjust the position of the wire antenna for better reception. Perform a full scan for stations. |
| Bluetooth pairing issues | Device not in pairing mode, radio not discoverable. | Ensure the radio is in Bluetooth pairing mode. Check your device's Bluetooth settings and try re-pairing. |
| No sound | Volume too low, headphones connected. | Increase volume. Disconnect headphones if external sound is desired. |
9. Specifications
- Model: DIGITRADIO 21
- Brand: TechniSat
- Model Number: 0001/3964
- Radio Bands: DAB+, FM (with RDS and PLL)
- Bluetooth Version: 4.2
- Speaker: 2 W (RMS) Mono Speaker
- Display: 2.8-inch TFT Color Display
- Favorite Station Memory: 10 for DAB+, 10 for FM
- Connections: 3.5mm Headphone Jack, DC IN
- Special Features: Clock, Alarm, Sleep Timer, Snooze Function, Display Dimmer, Bluetooth Audio Streaming
- Power Supply: External Power Adapter (DC 5.9 V / 1000 mA)
- Dimensions (W x H x D): 22.5 x 7.2 x 15.1 cm (approx. 8.86 x 2.83 x 5.94 inches)
- Color: White (neutral)
10. Warranty and Support
Specific warranty details are not provided in the product information. For warranty claims or technical support, please refer to the official TechniSat website or contact your retailer. Keep your proof of purchase for any warranty-related inquiries.
For further assistance, visit the TechniSat official website.





