XHDATA R108 DSP Portable Radio User Manual

1. Introduction

The XHDATA R108 is a multi-functional DSP receiver designed for portable use, offering reception across FM, MW, LW, SW, and Airband frequencies. It features a digital display, alarm clock, sleep timer, and memory presets for convenient listening at home or outdoors.

2. Control Location

Familiarize yourself with the buttons and ports on your R108 radio.

Front Panel Controls:

1. Power on/off button
2. Display & Lock button
3. Time Set button
4. Alarm Set button
5. Previous button
6. Next button
7. VM/VF Button (Volume/Frequency)
8. Memory button
9. Delete button
10. FM ST. / AM BW (Bandwidth) button
11. ATS button (Auto Tuning Storage)
12. Numeric keypad (0-9)
13. FM Band Selector

Side & Rear Panel Controls/Ports:

14. FM & SW Antenna Jack
15. Earphone Jack
16. FM & SW Telescopic Antenna
17. Multifunctional Tuning Knob / SQUELCH
18. Back Stand
19. Volume Knob
20. USB 5V DC-IN Jack
21. Battery Compartment

3. LCD Display Indicators

The LCD screen provides important information about the radio's status and settings.

1. Battery consumption indicator
2. FM stereo status indicator
3. Sleep indicator
4. Alarm indicator (speaker icon for radio alarm, bell icon for buzzer alarm)
5. SQUELCH indicator
6. Temperature (Temp.)
7. Digital number display (4 Digits)
   • With radio off: local time, alarm time, temperature
   • With radio on: local time, signal strength / SNR, alarm time, temperature, memory address, meter band.
8. Signal indicators
   • dBμ: signal strength unit
   • dB: Signal to Noise Ratio (S/N) unit
9. Alarm indicator
10. Meter band indicator
11. Preset memory address indicator
12. Sound Mode indicator
13. Tuning speed: FAST / SLOW / STOP
14. KHz: frequency unit for MW, LW & SW; MHz: frequency unit for FM
15. Master Digits
    • With radio off: local time
    • With radio on: frequency display, band display
16. Band indicator
17. Key-lock indicator

4. Setup

Battery Installation

1. Open the battery compartment located on the back of the radio.
2. Install 1 x BL-5C battery.
3. Close the battery door. The LCD display will show the battery level, time, and other symbols.

Charging the Battery

The R108 uses a BL-5C rechargeable battery and can be charged via a USB Type-C port.

1. With the radio off, install the BL-5C rechargeable battery.
2. Use a 5V external adaptor with a USB plug (Type-C charging cable included) to connect to the radio.
3. The battery symbol on the display will animate from bottom to top during charging. It will stop animating when the battery is fully charged.

Antenna Setup

Proper antenna setup is crucial for optimal reception.

• FM/SW Broadcasting: Fully extend the telescopic antenna for better reception.
• MW (LW) Broadcasting: Rotate the radio or change its location to achieve optimum reception.
• External Antenna: For improved FM, SW, and AIR band reception, plug the external wire antenna into the [FM & SW] antenna jack and hang its end outside a window.

Caution: Do not install any external antenna in areas with thunder & lightning.

5. Operating Instructions

Power On/Off

Press the [POWER] button to turn the radio on or off.

Note: If the radio does not turn on, check battery installation, battery capacity, or if the key-lock function is active. Press and hold the [LOCK] button to unlock.

Adjusting Volume

Rotate the [VOLUME] knob to adjust the sound level.

Tuning into Stations

You can tune into stations using several methods:

Method 1: Manual Tuning

1. Press the [VM/VF] button to switch into frequency mode. You will hear a "Be--" sound and "PRESET" will flash.
2. Rotate the [TUNING] knob to search for your desired station.

Method 2: Direct Keypad Entry

1. Press the [FREQ] button. You will hear a "Be--" sound.
2. Press the numeric keys [0] - [9] to enter the station frequency directly.

Notes:

• Ignore the decimal point for FM band when inputting frequency numbers (e.g., for FM 89.3 MHz, enter 8 9 3).
• If the entered frequency is not within the covering area, the display will show "Err" (error).

Working with Station Memories (500 Presets)

The R108 has 500 memory presets, with 100 for each band (FM, MW, LW, SW, AIR).

Method 1: Auto Tuning Storage (ATS)

1. Extend the telescopic antenna (for FM/SW/AIR).
2. Press the [BAND] button to select your desired band (e.g., FM).
3. Press & hold the [BAND] button until "PRESET" flashes and the frequency counts. The radio will scan and store all available stations.
4. Once counting stops, ATS is complete. Rotate the [TUNING] knob to browse stored stations.

Notes:

• ATS operation is similar for MW, LW, SW, and AIR bands.
• During ATS, pre-stored stations in the selected band will be replaced by newly found stations.
• If interference occurs or many mirror/blank stations are stored, adjust the telescopic antenna (FM & SW) or rotate the radio (MW & LW) for better reception.

Method 2: Storing Stations Manually

1. Tune to your desired station.
2. Press the [MEMORY] button. "PRESET" will flash.
3. Rotate the [TUNING] knob to select a storage location (1-100).
4. Press the [MEMORY] button again to store the station. You will hear a "Be--" sound.

Note: If you do not press the [MEMORY] button again within 3 seconds, the radio will automatically exit storage mode.

Listening to Stored Stations

1. Select your desired band by pressing the [BAND] button.
2. Press the [VM/VF] button to switch into frequency mode, then to address status (memory address number flashing).
3. Rotate the [TUNING] knob to tune into stored stations one by one.

Auto Browse Memory

1. Select your desired band by pressing the [BAND] button.
2. Press the [VM/VF] button to switch into frequency mode, then to address status (memory address number flashing).
3. Press & hold the Up/Down buttons until "PRESET" flashes to auto scan from one memory to another, staying on each station for about 5 seconds.
4. To stop auto search, press the Up/Down button.

Note: After a station is found, you can press the [DELETE] button to delete it.

Deleting Memory

Method 1: Deleting a Single Memory Manually

1. Press the [VM/VF] button to enter address mode.
2. Press & hold the [DELETE] button until "DEL" and "memory address" flash.
3. Rotate the [TUNING] knob to select the memory to delete.
4. Press the [DELETE] button again to remove the unwanted memory address. You will hear a "Be--" sound.

Note: If you do not press the [DELETE] button for 3 seconds, the radio will automatically exit the delete operation.

Method 2: Semi-Auto Delete Memory

1. Press the [VM/VF] button to enter memory address mode until you hear a "Be--" sound.
2. Press & hold the Up/Down buttons to auto browse stored stations until you hear a "Be--" sound.
3. Press the [DELETE] button at any time during auto browse to directly delete the unwanted station. The radio will continue auto browsing to the next available station until you press any other button to stop this function.

Note: This function is especially suitable for organizing stored memory.

Method 3: Manual Deletes All Memory Within the Band

1. Press the [VM/VF] button until "PRESET" flashes.
2. Press & hold the [DELETE] button for 3 seconds. "ALL DEL" will appear in the upper right corner of the display.
3. Press the [DELETE] button to delete all memory within the selected band.

Note: If you do not press the [DELETE] button for 3 seconds, the radio will automatically exit the delete operation.

Sleep Function

The radio's auto power-off time is set to 120 minutes by default, but you can adjust it.

1. Press & hold the [POWER] button until "SLEEP" flashes on the display.
2. Rotate the [TUNING] knob immediately to select a sleep timer from 1 to 120 minutes, or select "ON" for permanent operation.
3. Wait for the radio to automatically turn on to confirm the setting.

Clock Setting

Set Local Time

1. Press & hold the [TIME] button until the hours flash. Rotate the [TUNING] knob to adjust the hour.
2. Press the [TIME] button again. The minutes will flash. Rotate the [TUNING] knob to adjust the minutes.
3. Press the [TIME] button to confirm the setting.

Note: If the [TIME] button is not pressed again within 3 seconds, the unit will automatically confirm the setting.

Alarm Setting

You can activate/deactivate the alarm by buzzer or radio by repeatedly pressing the [ALARM] button.

Set Alarm Time

1. Press & hold the [ALARM] button until the hours flash in the upper right corner. Rotate the [TUNING] knob to adjust the hours.
2. Press the [ALARM] button again. The minutes will flash. Rotate the [TUNING] knob to adjust the minutes.
3. Press the [ALARM] button again. "30" will show on the display. Rotate the [TUNING] knob to select 1-90 minutes for the auto alarm off timer.
4. Press the [ALARM] button again to confirm.

Note: If you do not press the [ALARM] button for 3 seconds, the radio will automatically exit the adjustment.

Method 1: Set the Alarm by Radio

(Pre-store the radio frequency before setting this alarm mode.)

1. Turn on the radio, tune to your favorite station for the alarm, and adjust the desired alarm volume.
2. Press & hold the [ALARM] button with the speaker icon flashing to store the station.

When the alarm time is reached, the radio will automatically turn on and play the pre-stored station, then shut down at the preset off time.

Note: If the preset alarm is activated while you are listening to the radio, it will automatically switch to the preset radio station.

Method 2: Set the Alarm by Buzzer

1. Press the [ALARM] button with the bell icon flashing to turn on the alarm by buzzer.

When the alarm time is reached, the radio will emit a continuous "BB" sound and automatically turn off at the preset alarm off time.

Snooze Function

When the preset alarm is activated, press any button (except the power button) to temporarily turn off the alarm. The radio will alarm again 5 minutes later.

Notes:

• Press the [POWER] button to turn off the radio when the radio alarm is on.
• Press the [POWER] button to turn off the buzzer alarm when it is on.

How to Change the Display Mode

• With radio OFF: Repeatedly press the [DISPLAY] button to view temperature, home/world time, or alarm time.
• With radio ON: Repeatedly press the [DISPLAY] button to view home time, world time, alarm time, temperature, or signal strength.

Key-Lock Function

1. Press & hold the [LOCK] button until the key-lock symbol appears on the display to activate the key lock function.
2. Press & hold it again until the key-lock symbol disappears to deactivate the locking function.

Intelligent Light

This radio features an intelligent lighting function that keeps the backlight on for 10 seconds when any key or knob is operated.

FM ST. (FM Stereo)

1. While listening to FM stereo stations, press the [FM ST] button to activate stereo listening. "Stereo" will appear on the display.
2. If the received FM broadcast signal is too weak, it is recommended to turn off the stereo function by pressing the [FM ST] button again. "Stereo" will disappear.
3. The stereo function will not be activated if the FM station is not stereo broadcasting.

AM BW (Bandwidth)

Repeatedly press the [AM BW] button to select your desired 6, 4, 3, 2, 1 kHz bandwidth.

• Wide band: Offers better audio fidelity when receiving strong signals or local stations.
• Narrow band: Suitable for receiving weak & long-distance stations as it limits interference from adjacent strong signals and reduces background noise.

System Setting (Operating in the OFF state)

Setting FM Frequency Range

Press & hold the [FM SET] button until 64.0-108MHz, 76.0-108MHz, or 87-108MHz, 87.5-108MHz appears in the display to select the desired range.

Setting MW (AM) Tuning Step

Press & hold the [9/10 kHz] button until "9kHz" or "10kHz" appears on the display to select your desired AM tuning step.

Note: When the AM tuning step is 10 kHz, the temperature display automatically switches to Fahrenheit (°F). When the AM tuning step is 9 kHz, the temperature display automatically switches to Centigrade (°C). The 10 kHz step is mostly used in the USA.

Turn On/Off the LW

Press & hold the [LW ON/OFF] button until "LW ON" or "LW OFF" appears on the display to turn ON or OFF the LW respectively.

Turn On/Off the "Beep (B)" Sound

With the radio off, press & hold the [LW ON/OFF] button until "ON" or "OFF" appears on the display to activate or deactivate the "Beep (B)" sound respectively.

Switch Sound Mode

1. Turn on the radio and select any band.
2. Press & hold the number "4" button. You will hear a "B-B" sound, indicating successful switch.
3. The sound is in music mode when "MUSIC" is displayed and in news mode when "VOICE" is displayed.

Squelch Function

1. Press the [POWER] button to turn on the radio and select your desired band by pressing [BAND] button.
2. Press & hold the [SQUELCH] button until a "B" sound is heard to switch to the signal strength selection page with a symbol in display.
3. Rotate the [TUNING] knob to select signal strength "OFF-1-2-3-4-5-6-7-8-9".
4. Press the [SQUELCH] button again to confirm.

Note: If the [SQUELCH] button is not pressed shortly within 3 seconds, the radio will automatically confirm the adjustment. "OFF" means turn off the squelch function; the higher the number, the higher the signal strength needed to turn the sound on.

Tuning Speed Setting

1. Turn on the radio and select any band.
2. Press the [SQUELCH] button until you hear a "B" sound and release your hand.

6. Maintenance

• Avoid violent shock or dropping the radio into water.
• Do not place the radio in direct sunlight, high temperature, or high humidity. Avoid environments below 5°C or above +50°C to prevent damage to the LCD screen.
• Do not wipe the radio surface with liquids containing corrosive chemical compositions.
• Do not disassemble the radio or attempt to adjust internal component parameters yourself.
• If the radio will not be used for a long period, remove the battery to prevent liquid leakage.

7. Troubleshooting

8. Specifications

9. User Tips

• Shortwave Reception: The R108 is capable of picking up shortwave signals across its specified range (1,711 to 29,999 kHz).
• Stereo Sound: Stereo sound is primarily for headphones. The radio's built-in speaker provides good mono sound.
• Brand Logo: Note that the product may come with either the "XHDATA" or "SIHUADON" logo, as SIHUADON is a brand under XHDATA, and internal components remain the same.
• Battery Drain: If you experience fast battery drain, ensure the battery is fully charged and consider performing a reset if issues persist.
• Charging: The radio charges via a Type-C USB port.

10. Support & Contact

For further assistance or inquiries, please use the following contact information:

• Skype: radiwow
• E-mail: xhdatacn@gmail.com
• Facebook: XHDATA
• Website: https://www.xhdata.com.cn
• Whatsapp: +86 18025193267

An official user manual in PDF format is also available for detailed reference.