EasyManua.ls Logo

Roberts duologic - User Manual

Roberts duologic
28 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
Stereo DAB/FM RDS digital portable radio
Please read this manual before use
ROBERTS
Enjoy Listening
Question and Answer IconNeed help?

Do you have a question about the Roberts duologic and is the answer not in the manual?

Summary

Front Controls Overview

Control Identification

Identifies all controls on the front panel of the radio, including buttons, display, and indicators.

Connectivity and Power Ports

Side and Rear Connections

Details the headphone socket, auxiliary input, USB, and DC power input sockets located on the radio.

Alkaline Battery Usage

Installing Alkaline Batteries

Instructions for inserting four LR20 (D size) alkaline batteries and setting the battery switch.

Battery Switch and Indicator

Importance of setting the battery switch correctly and understanding the charge indicator light.

Battery Handling Precautions

Recommendations for removing batteries for extended periods and optimal power source usage.

Rechargeable Battery Usage

Installing Rechargeable Batteries

Guide to inserting NiMH/NiCad batteries and connecting the mains adaptor for charging.

Charging Process and Indicator

Explanation of the charge indicator light flashing green and steady green for charging status.

Battery Safety and Disposal

Important warnings about heat exposure and proper disposal of rechargeable batteries.

AC Adaptor Powering

Connecting the AC Adaptor

Steps to connect the mains adaptor plug to the radio and mains socket for power.

Automatic Battery Disconnection

How batteries are disconnected when the AC adaptor is in use.

Mains Connection Safety

Important notes on keeping the mains socket accessible and disconnecting the adaptor.

DAB Radio Operation

Initial Setup and Scan

How to extend the aerial, switch on, and perform an initial scan for DAB stations.

Scanning Process and Results

Understanding the scanning progress, station selection, and 'No stations available' message.

Improving DAB Reception

Advice on relocating the radio for better signal reception if stations are not found.

DAB Station Selection

Tuning through Stations

Using the Tuning control to scroll through available DAB stations and select one.

Adjusting Volume and Reception

How to adjust volume and what to do if a station is 'Not Available'.

Preset Station Reference

Note directing users to page 17 for information on using radio station presets.

DAB Display Information

Cycling Through Display Modes

How to use the Info button to cycle through various display options for DAB.

Available DAB Display Modes

Details of display modes: scrolling text, program type, multiplex name, time/date, frequency, bit rate, and signal strength.

Finding New DAB Radio Stations

Performing a DAB Scan

Instructions for using the Auto Tune button to find new DAB stations, including quick and full scans.

Understanding Scan Results

How station counts increase and stations are added to the list during a scan.

Secondary Services in DAB

Accessing Secondary DAB Services

How to identify, select, and return from secondary DAB radio services.

Manual Tuning in DAB

Manual DAB Channel Tuning

How to manually tune to specific DAB channels using the Info and Tuning controls.

Signal Strength and Multiplex Display

How signal strength is displayed and how multiplex names are shown during manual tuning.

DAB Signal Strength Display

Interpreting DAB Signal Strength

How to display signal strength and use it to position the radio for optimal reception.

DAB Dynamic Range Control (DRC)

Adjusting DRC Settings

Steps to adjust DRC settings (0, 1/2, 1) to manage audio loudness differences.

DRC Functionality Notes

Information on how DRC affects sound and its dependence on broadcast support.

FM Radio Operation (Search Tuning)

Initiating FM Scan

How to select the FM band and use the Auto Tune button to scan for stations.

Scanning Directions and Results

Understanding upward/downward scanning, displaying station frequency, and RDS data.

Adjusting Volume and Presets

Setting the required volume and a reference to preset station selection on page 17.

FM Radio Operation (Manual Tuning)

Tuning FM Stations Manually

Instructions for tuning to FM stations using the Tuning control, changing frequency by 50 kHz.

Setting Volume and Power Off

How to adjust the volume and switch off the radio after manual tuning.

FM Display Information

Accessing FM Display Options

How to use the Info button to cycle through display options in FM mode.

Available FM Display Modes

Details of display modes: scrolling text, program type, time/date, frequency, and audio mode (stereo/mono).

Setting a Favourite Station

Setting Favourite Station Steps

Instructions to store one favourite DAB or FM station by pressing and holding the Favourite button.

Saving Favourite Station Confirmation

How the display confirms that 'My Fav. saved' successfully.

Recalling Your Favourite Station

Recalling Favourite Station

How to automatically tune to the stored favourite DAB or FM station by pressing the Favourite button.

DAB and FM Preset Stations

Setting Preset Stations

How to store preferred DAB or FM stations as presets by using the Preset button.

Viewing and Selecting Presets

How to view only preset stations and select one using the Tuning control.

Cancelling Preset View

How to exit the preset view to access the full station list again.

FM Stereo and Mono Modes

Switching to Mono Mode

How to switch to Mono mode to reduce hiss on weak FM stations.

Switching to Auto (Stereo) Mode

How to return the radio to Auto (Stereo) mode for FM reception.

FM Scan Sensitivity Settings

Adjusting FM Scan Sensitivity

How to select 'Local' or 'Distant' scan zones to find stronger or weaker FM signals.

Understanding Scan Zone Options

Explanation of how Local and Distant settings affect signal reception during auto-scan.

Software Version Check

Accessing Software Version

How to view the radio's current software version using the Info and Tuning controls.

Displaying SW Version

How the software version is displayed after navigating the menu.

System Reset Procedure

Performing a Factory Reset

Steps to perform a factory reset, which restores settings and erases presets.

Resetting for Malfunctions

Advice on resetting the product for malfunctions due to electrostatic discharge.

Post-Reset Scan

Information that a DAB scan is performed automatically after a system reset.

Headphone Socket Usage

Headphone Socket Details

Details on the 3.5mm headphone socket for private listening and automatic mute of the loudspeaker.

Auxiliary Input Socket

Auxiliary Input Connection

How to connect external audio sources (CD, MP3) via the Auxiliary input socket.

Activating and Deactivating Aux Mode

Steps to select and cancel the Auxiliary Input mode using the DAB/FM button.

Battery Type and Mixing Precautions

Battery Type Selection

Importance of setting the battery switch correctly for Alkaline or NiMH/NiCad batteries.

Battery Mixing Precautions

Warnings against mixing old/new or different types of batteries to prevent damage and ensure performance.

Rechargeable Battery Charging

Rechargeable Charging Details

Information on safe charging, battery protection, and optimal performance recommendations.

Charging Indicators and Time

Understanding the flashing and steady green charge lights and typical charging duration.

Battery Handling and Safety Guidelines

Battery Power and Charging Behaviour

How the charge indicator behaves when using batteries or when charging rechargeable batteries.

Battery Storage and Long-Term Use

Recommendations for storing batteries and handling rechargeable batteries for longevity.

General Battery Safety Warnings

Crucial safety guidelines to prevent battery leakage, overheating, explosion, and injury.

Display Backlight Behavior

Backlight Operation Modes

How the display backlight behaves when powered by batteries versus AC mains.

Software Upgrade via USB

Software Update Information

Information on future software updates, registration, and where to find upgrade information.

General Operating Precautions

Environmental and Placement Advice

Important advice on environmental conditions, ventilation, and placement to protect the radio.

Radio Specifications and Features

Radio Specifications

Technical details including power requirements, battery life, frequency coverage, and speaker output.

Circuit and Aerial Features

Details on loudspeaker size, output power, socket types, and aerial system.

Guarantee Information

Guarantee Terms and Conditions

Details of the 12-month guarantee, exclusions, and the procedure for making a claim.

Roberts Radio Technical Services

Contact information for technical support and service department for guarantee claims.

Summary

Front Controls Overview

Control Identification

Identifies all controls on the front panel of the radio, including buttons, display, and indicators.

Connectivity and Power Ports

Side and Rear Connections

Details the headphone socket, auxiliary input, USB, and DC power input sockets located on the radio.

Alkaline Battery Usage

Installing Alkaline Batteries

Instructions for inserting four LR20 (D size) alkaline batteries and setting the battery switch.

Battery Switch and Indicator

Importance of setting the battery switch correctly and understanding the charge indicator light.

Battery Handling Precautions

Recommendations for removing batteries for extended periods and optimal power source usage.

Rechargeable Battery Usage

Installing Rechargeable Batteries

Guide to inserting NiMH/NiCad batteries and connecting the mains adaptor for charging.

Charging Process and Indicator

Explanation of the charge indicator light flashing green and steady green for charging status.

Battery Safety and Disposal

Important warnings about heat exposure and proper disposal of rechargeable batteries.

AC Adaptor Powering

Connecting the AC Adaptor

Steps to connect the mains adaptor plug to the radio and mains socket for power.

Automatic Battery Disconnection

How batteries are disconnected when the AC adaptor is in use.

Mains Connection Safety

Important notes on keeping the mains socket accessible and disconnecting the adaptor.

DAB Radio Operation

Initial Setup and Scan

How to extend the aerial, switch on, and perform an initial scan for DAB stations.

Scanning Process and Results

Understanding the scanning progress, station selection, and 'No stations available' message.

Improving DAB Reception

Advice on relocating the radio for better signal reception if stations are not found.

DAB Station Selection

Tuning through Stations

Using the Tuning control to scroll through available DAB stations and select one.

Adjusting Volume and Reception

How to adjust volume and what to do if a station is 'Not Available'.

Preset Station Reference

Note directing users to page 17 for information on using radio station presets.

DAB Display Information

Cycling Through Display Modes

How to use the Info button to cycle through various display options for DAB.

Available DAB Display Modes

Details of display modes: scrolling text, program type, multiplex name, time/date, frequency, bit rate, and signal strength.

Finding New DAB Radio Stations

Performing a DAB Scan

Instructions for using the Auto Tune button to find new DAB stations, including quick and full scans.

Understanding Scan Results

How station counts increase and stations are added to the list during a scan.

Secondary Services in DAB

Accessing Secondary DAB Services

How to identify, select, and return from secondary DAB radio services.

Manual Tuning in DAB

Manual DAB Channel Tuning

How to manually tune to specific DAB channels using the Info and Tuning controls.

Signal Strength and Multiplex Display

How signal strength is displayed and how multiplex names are shown during manual tuning.

DAB Signal Strength Display

Interpreting DAB Signal Strength

How to display signal strength and use it to position the radio for optimal reception.

DAB Dynamic Range Control (DRC)

Adjusting DRC Settings

Steps to adjust DRC settings (0, 1/2, 1) to manage audio loudness differences.

DRC Functionality Notes

Information on how DRC affects sound and its dependence on broadcast support.

FM Radio Operation (Search Tuning)

Initiating FM Scan

How to select the FM band and use the Auto Tune button to scan for stations.

Scanning Directions and Results

Understanding upward/downward scanning, displaying station frequency, and RDS data.

Adjusting Volume and Presets

Setting the required volume and a reference to preset station selection on page 17.

FM Radio Operation (Manual Tuning)

Tuning FM Stations Manually

Instructions for tuning to FM stations using the Tuning control, changing frequency by 50 kHz.

Setting Volume and Power Off

How to adjust the volume and switch off the radio after manual tuning.

FM Display Information

Accessing FM Display Options

How to use the Info button to cycle through display options in FM mode.

Available FM Display Modes

Details of display modes: scrolling text, program type, time/date, frequency, and audio mode (stereo/mono).

Setting a Favourite Station

Setting Favourite Station Steps

Instructions to store one favourite DAB or FM station by pressing and holding the Favourite button.

Saving Favourite Station Confirmation

How the display confirms that 'My Fav. saved' successfully.

Recalling Your Favourite Station

Recalling Favourite Station

How to automatically tune to the stored favourite DAB or FM station by pressing the Favourite button.

DAB and FM Preset Stations

Setting Preset Stations

How to store preferred DAB or FM stations as presets by using the Preset button.

Viewing and Selecting Presets

How to view only preset stations and select one using the Tuning control.

Cancelling Preset View

How to exit the preset view to access the full station list again.

FM Stereo and Mono Modes

Switching to Mono Mode

How to switch to Mono mode to reduce hiss on weak FM stations.

Switching to Auto (Stereo) Mode

How to return the radio to Auto (Stereo) mode for FM reception.

FM Scan Sensitivity Settings

Adjusting FM Scan Sensitivity

How to select 'Local' or 'Distant' scan zones to find stronger or weaker FM signals.

Understanding Scan Zone Options

Explanation of how Local and Distant settings affect signal reception during auto-scan.

Software Version Check

Accessing Software Version

How to view the radio's current software version using the Info and Tuning controls.

Displaying SW Version

How the software version is displayed after navigating the menu.

System Reset Procedure

Performing a Factory Reset

Steps to perform a factory reset, which restores settings and erases presets.

Resetting for Malfunctions

Advice on resetting the product for malfunctions due to electrostatic discharge.

Post-Reset Scan

Information that a DAB scan is performed automatically after a system reset.

Headphone Socket Usage

Headphone Socket Details

Details on the 3.5mm headphone socket for private listening and automatic mute of the loudspeaker.

Auxiliary Input Socket

Auxiliary Input Connection

How to connect external audio sources (CD, MP3) via the Auxiliary input socket.

Activating and Deactivating Aux Mode

Steps to select and cancel the Auxiliary Input mode using the DAB/FM button.

Battery Type and Mixing Precautions

Battery Type Selection

Importance of setting the battery switch correctly for Alkaline or NiMH/NiCad batteries.

Battery Mixing Precautions

Warnings against mixing old/new or different types of batteries to prevent damage and ensure performance.

Rechargeable Battery Charging

Rechargeable Charging Details

Information on safe charging, battery protection, and optimal performance recommendations.

Charging Indicators and Time

Understanding the flashing and steady green charge lights and typical charging duration.

Battery Handling and Safety Guidelines

Battery Power and Charging Behaviour

How the charge indicator behaves when using batteries or when charging rechargeable batteries.

Battery Storage and Long-Term Use

Recommendations for storing batteries and handling rechargeable batteries for longevity.

General Battery Safety Warnings

Crucial safety guidelines to prevent battery leakage, overheating, explosion, and injury.

Display Backlight Behavior

Backlight Operation Modes

How the display backlight behaves when powered by batteries versus AC mains.

Software Upgrade via USB

Software Update Information

Information on future software updates, registration, and where to find upgrade information.

General Operating Precautions

Environmental and Placement Advice

Important advice on environmental conditions, ventilation, and placement to protect the radio.

Radio Specifications and Features

Radio Specifications

Technical details including power requirements, battery life, frequency coverage, and speaker output.

Circuit and Aerial Features

Details on loudspeaker size, output power, socket types, and aerial system.

Guarantee Information

Guarantee Terms and Conditions

Details of the 12-month guarantee, exclusions, and the procedure for making a claim.

Roberts Radio Technical Services

Contact information for technical support and service department for guarantee claims.

Roberts duologic Specifications

General IconGeneral
BrandRoberts
Modelduologic
CategoryPortable Radio
LanguageEnglish

Related product manuals