Product Overview
The Retekess TR603 is a versatile FM/AM/SW multiband radio and MP3 speaker. It supports playback from USB drives and TF cards, and can function as an external speaker via AUX input.
Key Features and Buttons:
- 1: 0-9 Number Buttons: Used for selecting MP3 files or radio channels by number or frequency.
- 2: ON/OFF: Power switch to turn the product on or off.
- 3: [volume-knob]: Volume control knob.
- 4: [tuning-knob]: Tuning knob for radio frequency selection.
- 5: LED Charging Indicator: Red when charging, green when fully charged.
- 6: DC 5V Charging Jack: Port for charging the device.
- 7: AUX: 3.5mm audio input for connecting external devices.
- 8: [usb-port]: USB port for playing MP3 files from a flash drive.
- 9: [earphone-jack]: Earphone output jack.
- 10: [tf-card-slot]: TF card slot for playing MP3 files.
- 11: [previous-button]: Previous MP3/channel or rewind function.
- 12: [play-pause-button]: Play/Pause for MP3s, Mute for radio.
- 13: [next-button]: Next MP3/channel or fast-forward function.
- 14: MP3/AUX: Mode switch for USB/TF/AUX inputs.
- 15: Repeat: Select repeat mode (ONE or ALL).
- 16: FM: FM radio band selection.
- 17: AM (MW): AM (Medium Wave) radio band selection.
- 18: SW: SW (Short Wave) radio band selection.
- 19: SCAN: Auto-scan and memory for radio channels.
- 20: Memory/Delete Button: Save or delete radio channels manually.
Radio Operation
FM Radio
FM radio (Frequency Modulated) offers clear sound but can be obstructed by buildings or mountains. Frequency range: 87.5-108MHz.
Scanning FM Radio: Pull out the antenna, press the "FM" button. Hold the "SCAN" button for over 3 seconds to auto-scan channels. The display will show the scanning progress. Upon completion, it will play the first scanned channel.
AM (MW) Radio
AM (Medium Wave) is susceptible to electromagnetic interference from chargers, lights, and computers. It is recommended to scan in areas with less interference. AM has a longer wave that can bypass obstacles. Frequency range: 522 – 1710 KHz.
Scanning AM Radio: Press the "AM" button. Hold the "SCAN" button for over 3 seconds to auto-scan channels. The display will show the scanning progress. Upon completion, it will play the first scanned channel.
SW Radio
SW (Short Wave) signal reception is dependent on weather conditions; it is often better to receive SW signals at night. Frequency range: 2300-21950 KHz.
Scanning SW Radio: Press the "SW" button. Hold the "SCAN" button for over 3 seconds to auto-scan channels. The display will show the scanning progress. Upon completion, it will play the first scanned channel.
After scanning, use the [previous-button] or [next-button] to switch channels, or use the number buttons (0-9) to select a specific channel by its number or frequency.
Memory Radio Channels and Delete Radio Channels Manually
Memory Radio Channels Manually
If a desired radio channel has a weak signal and is not captured by auto-scan, you can save it manually:
- By Frequency: Enter the channel frequency using the number buttons (0-9), then press the Memory/Delete button (20). The display will show "SAVE". You can then select the saved channel using its number or by tuning.
- By Tuning: Tune to the desired channel using the [tuning-knob], then shortly press the Memory/Delete button (20) to save it.
Delete Radio Channels Manually
To delete unwanted or noisy channels:
- Select the channel you wish to delete using the [previous-button] or [next-button].
- Hold the Memory/Delete button (20) for 3 seconds. The display will show "DEL", indicating the channel has been deleted.
The Battery Charging Method
- If the USB/TF playback is intermittent or the display screen flashes, the battery voltage is low. Connect the device to a power source using the USB charging cable (connect the large end to a computer USB port or power adapter, and the small end to the DC 5V charging jack). The LED charging indicator will turn red while charging.
- Charging time is 3-5 hours. The LED charging indicator turns green when fully charged.
Precautions
- Charge the product in a safe environment, away from unstable voltage or dangerous goods.
- Do not use the product near water or immerse it in liquid.
- Avoid using the product in environments exceeding 40 degrees Celsius.
- Do not throw the product into fire, as it may cause an explosion.
Specifications
- Radio Frequency: FM: 87.5-108MHz; AM: 522 – 1710 KHz; SW: 2300 – 21950 KHz
- Decoding: 8-320KBPS
- S/N: 87dB
- Speaker: 40mm, 3 ohms, 5W
- Charging Voltage: DC 5V 500mA
- Output Power: 3W (Max)
- Dimension: 128*29*83mm
Packing Accessories
- USB charging cable * 1
- Audio cable * 1
- BL-5C lithium battery * 1
- User manual * 1
Warnings and Safety Information
Before using this radio, read this guide for important operating instructions for safe usage and RF energy awareness and control.
Local Government Regulations
For occupational use, users must be aware of and control their RF exposure to meet requirements. This is facilitated by product labels and user manual information.
Compliance with RF Exposure Standards
The Retekess radio is designed and tested to comply with national and international guidelines for human exposure to radio frequency electromagnetic energy.
FCC ID: This radio complies with IEEE (FCC) and ICNIRP exposure limits for occupational/controlled RF environments. It is approved for occupational use only. This device complies with Part 15 of the FCC Rules, subject to two conditions: (1) it may not cause harmful interference, and (2) it must accept any interference received. Warning: Modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with Class B digital device limits per FCC Rules, designed for reasonable protection against harmful interference in residential installations. If interference occurs, try reorienting the antenna, increasing separation, connecting to a different circuit, or consulting a dealer.
CE Marking: Henan Eshow Electronic Commerce Co.,Ltd. declares that this radio equipment complies with RED Directive 2014/53/EU, ROHS Directive 2011/65/EU, and WEEE Directive 2012/19/EU. The full text of the EU declaration of conformity is available at www.retekess.com.
IC ID: This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to two conditions: (1) it may not cause interference, and (2) it must accept any interference. RF energy is generated only during transmission, not reception or standby.
Avoid Choking Hazard
Small Parts. Not for children under 3 years.
Protect Your Hearing
- Use the lowest necessary volume.
- Turn up volume only in noisy surroundings.
- Turn down volume before adding a headset or earpiece.
Turn Off Your Radio Power in Specific Conditions
- Before removing/installing a battery or accessory, or when charging.
- In potentially hazardous environments: near electrical blasting caps, in blasting areas, or in explosive atmospheres (inflammable gas, dust, powders).
- While taking on fuel or parked at gasoline service stations.
To Avoid Electromagnetic Interference and/or Compatibility Conflicts
- Turn off the radio in facilities with posted notices (e.g., hospitals with sensitive medical devices).
- Turn off the radio when on board an aircraft, in accordance with airline regulations.
Avoid Burns
- Antennas: Do not use a radio with a damaged antenna. Skin contact with a damaged antenna may cause minor burns.
- Batteries: Exercise care when handling batteries. Conductive materials touching exposed terminals can cause short circuits, heat, and burns.
- Long Transmission: The radiator and chassis may become hot during long transmissions.
Safety Operation
Forbid:
- Do not use the charger outdoors or in moist environments; use only in dry locations.
- Do not disassemble the charger; this may cause electrical shock or fire.
- Do not operate the charger if it is broken or damaged.
- Do not place the radio in or near an airbag deployment area, as it may cause serious injury.
To Reduce Risk:
- Disconnect the charger by pulling the plug, not the cord.
- Unplug the charger from the AC outlet before maintenance or cleaning.
- Contact Retekess for repairs and service.
