Retekess TR105 User Manual

1. TR105 Radio Overview Information

The TR105 is a small, pocket-sized radio, convenient for carrying outside, with high reception sensitivity. It is suitable for radio enthusiasts and as an auxiliary product for off-road users (for VHF channel reception). It can also provide flight information for frequent flyer users. The radio can receive FM, AM, SW, CB, AIR, and VHF bands.

Please note:

• The AM band has two modes: AM step value of 9kHz and 10kHz.
• The VHF band also has two modes: VHF-N (Narrow) and VHF-W (Wide), which users can adjust according to their needs.

About the VHF band:

• VHF NFM: Used for receiving coast channels, train channels, racing channels, weather bands, and VHF intercom reception.
• VHF-W: Used for receiving campus channels and TV sound.

The radio features independent keys for frequency and volume control, allowing manual and automatic station search. AM step value can be adjusted by the user based on actual conditions, offering a personalized and convenient operation.

2. Product Appearance and Component Description

The Retekess TR105 is a compact, portable radio. The front features a speaker grille below a digital LCD display. The top has ports and buttons. The sides have additional buttons and ports. A telescopic antenna extends from the top.

Components:

• 1. POWER/SLEEP: Turns the radio on/off and adjusts automatic shutdown.
• 2. LOCK: Locks buttons to prevent frequency conversion, shutdown, etc.
• 3. DC5V Micro USB Jack: Connects to DC 5V external power for charging the battery.
• 4. 3.5mm Earplug Jack: For personal stereo listening without disturbing others.
• 5. Antenna: A seven-section telescopic antenna for receiving signals.
• 6. LCD Display: Digital display showing frequency, time, band, battery status, volume, etc.
• 7. VOL+: Increases volume or cycles through preset recall functions.
• 8. VOL-: Decreases volume or cycles through preset recall functions.
• 9. MEMO: Stores and recalls preset stations.
• 10. MODE: Converts modes for each band (e.g., FM MONO/ST, AM step values, SW step, AIR step, VHF-N/VHF-W).
• 11. SET: Used for setting the time or the SQ (Squelch) function.
• 12. BAND: Switches between bands (FM/AM/SW/CB/AIR/VHF) or sets the alarm clock.
• 13. TUN+: Selects the next station or adjusts time forward.
• 14. TUN-: Selects the previous station or adjusts time backward.
• 15. Rope: A strap or lanyard for carrying the device.
• 16. Loudspeaker: The speaker grille on the front of the radio.

LCD Display Symbol Description:

• A: Frequency/time display.
• B: Minimum step frequency for SW/CB/AIR/VHF bands.
• C: Lock indication symbol.
• D: Frequency unit for FM/SW/CB/AIR/VHF.
• E: AM frequency unit.
• F: Battery symbol.
• G: Alarm symbol.
• H: Sleep symbol.
• I: Displays bands, preset recall/store address, SQ ON/OFF status, memo status, sensitivity, and minute indication.
• J: Sensitivity symbol.

3. Operation Instructions

POWER/SLEEP (USING RSSI function)

POWER: A short press of the POWER button displays the clock. A second short press within 10 seconds turns the radio on. Alternatively, a double short press of the POWER button turns the radio on. If no buttons are operated for 10 seconds, the radio enters power-saving mode (LCD is not displayed). A long press of the POWER button while the radio is on turns it off.

SLEEP: After inserting the battery, while the radio is in clock state, long press the POWER button. The sleep symbol will appear on the top right corner of the LCD, and the sleep time can be selected (90, 80, 70, 60, 50, 40, 30, 20, 10 seconds). Each press of the POWER button cycles through sleep times. After selecting the sleep time, the radio will turn on after approximately 1 second. The radio will automatically turn off when the selected sleep time is reached.

RSSI Indicator: On the power-on state, a short press of the POWER button displays "DB" on the LCD, indicating the Received Signal Strength. The sensitivity of the receiving station can be determined based on this parameter.

Note: If the sleep function is not required, press and hold the POWER button for a long time to turn off the radio and then turn it on again.

LOCK (Printed a lock symbol)

The LOCK function prevents accidental frequency conversion, shutdown, etc. On the clock state or power-on state, long press the LOCK button to lock the radio. When locked, no buttons will function. Long press the LOCK button again to cancel the lock function. If buttons are unresponsive, check if the radio is locked.

DC5V Micro USB Jack

This jack is for external power. Connect a DC 5V power supply using a USB cable to charge the radio. If the display is unclear or the battery symbol is flashing, plug in the external power supply. Charging takes approximately 3-4 hours. The battery symbol will be fully displayed when charging is complete.

3.5mm Earplug Jack

Connect earphones here for personal stereo listening without disturbing others.

Seven Section Telescopic Antenna

When listening to FM, SW, CB, AIR, and VHF bands, pull out the antenna to improve signal reception. When turning off the radio, close the antenna to prevent it from breaking.

LCD Display

The LCD display is convenient for users to view frequency points, band conversions, battery usage, volume adjustments, and other information.

VOL+ / VOL-

Adjusting Volume:

• Method 1: Short press VOL+ or VOL- to increase or decrease the volume by one level (00 to 33).
• Method 2: Long press VOL+ or VOL- to rapidly increase or decrease the volume. Release the button to stop.

When in recall mode, pressing VOL+ or VOL- helps to select stored memory stations. After a short press of the MEMO button, CH1-CH50 will appear on the LCD. Then, use VOL+ or VOL- to search for the target preset recall number.

MEMO (Store and Recall Function)

Preset Store Operation:

1. Use the TUNING+/- buttons to adjust to the target frequency.
2. Long press the MEMO button. "CH01-CH50" will appear on the LCD, and the station address (e.g., "CH01") will flash.
3. Press the VOL+ or VOL- buttons to select the desired station address.
4. Short press the MEMO button again. The LCD will display "MEMO", and after 1 second, the station is successfully stored.

Example: To save FM 87.8MHz to CH01:

1. Press TUNING+/- to tune to 87.8MHz.
2. Long press MEMO. "CH01-CH50" appears.
3. Use VOL+/- to select CH01.
4. Short press MEMO again. "MEMO" appears, confirming the save.

Note: Only one frequency point can be stored per storage address.

Present Recall Function Operation: Short press the MEMO button. The LCD displays CH01-CH50 (memory station addresses). Short press VOL+ or VOL- to select the target memory station.

MODE (Mode Conversion of Each Band)

FM State: Insert the 3.5mm earplug. Short press the MODE button. The LCD will display "MONO" or "ST" (Stereo). Pressing MODE toggles between these two modes.

AM State: Short press the MODE button. The LCD will display either 520KHz or 522KHz. 520KHz indicates an AM step value of 10K. 522KHz indicates an AM step value of 9K. When the AM step value is 9K, the frequency range is 522-1710KHz. When the AM step value is 10K, the frequency range is 520-1720KHz.

Note: In the United States, Canada, Mexico, Australia, and other North American and South American countries, the step value must be set to 10KHz. Other countries must use 9KHz.

SW State: The SW step value is 0.005MHz. Short press the MODE button to cycle through frequencies: 2.300/3.200/3.900/5.000/6.030/7.150/10.000/11.479/13.600/15.000/17.650/19.00/26.000.

AIR State: The step value is 5KHz/25KHz. Short press the MODE button to display "05k" or "25K".

VHF State: Toggles between Narrow band FM-N and Broadband FM-W. Short press the MODE button, and the LCD will display "FM-N" or "FM-W".

• Select FM-N: Mainly used for receiving coast stations, train channels, racing channels, weather bands (WX), VHF intercom reception, and VHF (HAM). (Note: This varies by country and local radio frequency.)
• Select FM-W: Mainly used for receiving campus radio and TV sound.

SET (Setting Time / Setting SQ Function)

Setting Time Operation:

1. On clock state or when connected to external DC5V power, long press the SET button. The hour digits will flash.
2. Use TUNING+/- to adjust the correct hour.
3. Press SET again. The minute digits will flash.
4. Use TUNING+/- to adjust the correct minutes.
5. After setting the time, short press SET again or wait about two seconds. The radio will default to the adjusted time. The backlight will be on during this process.

Setting SQ (Squelch) Function:

In POWER-ON state, on CB and AIR bands, long press the SET button to operate the SQ function. Long press SET again to exchange between SQ-ON and SQ-OFF. After about 3 seconds, the radio returns to the default mode. "SQ ON" on the LCD indicates the squelch function is enabled, while "SQ OF" indicates it is closed.

BAND (Setting Alarm / Bands Exchange)

Setting Alarm Operation:

1. On clock state, short press the BAND button. The alarm symbol "⏰" will appear on the LCD.
2. Long press the SET button to set the alarm clock. The method is similar to setting the time.
3. After long pressing SET, the hour digits flash. Use TUNING+/- to adjust the alarm hour.
4. Short press SET. The minute digits flash. Use TUNING+/- to adjust the alarm minute.
5. Wait about 1 second for the system to default the set time.
6. If you press the SET button a third time, the LCD will display "rHd" or "bu2". These indicate two modes: automatic turn-on and alarm setting model.

Press TUNING+ / TUNING- on the right side of the radio to swap between "rHd" (automatic turn-on) and "bu2" (alarm model). When in alarm model, the radio will ring at the set alarm time. Press any button to stop the ring. The alarm will continue for 5 seconds if no button is pressed.

Power-on State, Bands Exchange

Turn on the radio. Short press the BAND button to switch between FM, AM, CB, AIR, VHF (VHF-W and VHF-N). Each short press searches for the target band.

Auto Scanning

Turn on the radio. Long press the BAND button. The radio will automatically search and store radio stations from low to high frequencies. The LCD will display "CH01-CH50", and the stored address number will change. After scanning is complete, press the MEMO button, then use VOL+ or VOL- to recall the stored stations.

TUNING+/- (Select Station +/-, Adjust Time +/- Function)

In power-on state, use the TUN+/TUN- buttons to select your target frequency.

• FM model: default step 0.1MHz
• AM model: default step HZ/10KHz (selectable by customer)
• SW model: default step 0.005MHz
• CB mode: default step 0.005MHz
• AIR mode: default step 0.005MHz/0.025MHz (selectable by customer)
• VHF mode: default step 0.005MHz

A short press of TUN+/TUN- adds or reduces the frequency according to the system default step value. A long press searches for the frequency quickly. Releasing the TUN+/TUN- button while searching will stop the station search automatically when a signal is found.

In clock state, when setting the time, use the TUN+/TUN- buttons to adjust the correct time.

6. Orange Backlight

For convenient night use, the radio features an orange backlight. In the power-on state, pressing any button will turn on the backlight for 10 seconds.

7. Receiving TV Sound

The fundamental difference between TV and FM radio is that TV sound frequencies are odd multiples of 50KHz. Below are the audio points for several countries.

Special Note: Television sound for FM frequencies is more susceptible to environmental radio interference, has strong regional variations, and transmission distance limitations compared to other frequency bands. Adjacent region or city coverage may differ significantly.

8. Main Specification

Additional Specifications

• Speaker: 40MM 8Ω 1W
• Battery: 700mAh 3.7v lithium battery
• External power supply: DC5v
• Minimum operating voltage: 3.2V
• Maximum current: >180mA
• Stereo separation: ≥32DB
• Distortion degree: ≤0.5%
• Output power: ≤200MW
• External earplug: 3.5MM/32ΩX2

9. Using Antenna

Listening to FM Broadcast: Pull out the antenna, adjust its length and direction to find the best receiving position. Note: Shorten the antenna length if disturbed by other strong broadcasts.

Listening to AM Broadcast: The radio uses a built-in magnet antenna for AM broadcast. Change the radio's direction properly to achieve the best receiving effect.

Listening to SW Broadcast: Pull out the antenna, adjust its length and direction to find the best receiving position.

10. Notice

• Please remove the battery when the radio is not in use to prevent leakage.
• If the volume is unstable or the LCD display darkens or flashes during broadcast, it may be due to low battery. Please recharge.
• Avoid high pressure, strong collision, dropping, or water exposure.
• Do not place the radio under direct sunlight, in high-temperature, or high-humidity areas, or store it in environments with temperatures below -5°C or above 50°C.
• Do not clean the case with chemical solvents, as this may damage the radio casing.
• Do not disassemble the radio or change the specifications of its internal parts.

User Manual For External Antenna

Function: Improves SW/FM reception sensitivity, suitable for external connection when indoor signal is poor.

Specification: Clip type, line length: 3 meters.

Characteristics:

1. Enhances the receiving capacity of FM and SW bands and improves reception quality.
2. Offers flexible placement and simple operation.
3. Suitable for use in areas with signal shielding.

Method of Application:

1. First, take out the antenna spring and fix it outside the room, or hang it by the window. (Do not use during thunderstorms).
2. Then, stretch the cord.
3. The antenna clamp can be attached to the antenna rod's head.

Safety and Compliance

⚠️ ATTENTION! Before using this radio, read this guide which contains important operating instructions for safe usage and RF energy awareness and control for compliance with applicable standards and regulations.

Local Government Regulations

When radios are used for employment, Local Government Regulations require users to be fully aware of and able to control their exposure to meet occupational requirements. Exposure awareness can be facilitated by product labels directing users to specific awareness information. Your Retekess radio has an RF Exposure Product Label. The user manual or a separate safety booklet includes information and operating instructions required to control RF exposure and satisfy compliance requirements.

Unauthorized Modification and Adjustment

Changes or modifications not expressly approved by the party responsible for compliance may void the user's authority granted by local government radio management departments to operate this radio. To comply with requirements, transmitter adjustments should only be made by or under the supervision of a certified technician. Replacement of unauthorized transmitter components could violate rules.

FCC Requirements

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

CE Requirements

(Simple EU declaration of conformity) Henan Eshow Electronic Commerce Co., Ltd declares that the radio equipment type is in compliance with essential requirements and other provisions of 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.

Disposal: The ?️ symbol on your product, literature, or packaging reminds you that in the European Union, all electrical and electronic products, batteries, and accumulators must be taken to designated collection locations at the end of their working life. Dispose of them according to local laws, not as unsorted municipal waste.

IC Requirements

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage; (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

RF Warning Statements

The device has been evaluated to meet general RF exposure requirements and can be used in portable exposure conditions without restriction.

RF Exposure Information

• DO NOT operate the radio without a proper antenna attached, as this may damage the radio and cause you to exceed RF exposure limits. Use the antenna supplied by the manufacturer or one specifically authorized by them.
• To avoid interference, turn off the radio in areas where signs are posted to do so.
• DO NOT operate the transmitter in areas sensitive to electromagnetic radiation, such as hospitals, aircraft, and blasting sites.

Avoid Choking Hazard

? Small Parts. Not for children under 3 years.

Protect Your Hearing

⚠️ WARNING

• Use the lowest volume necessary.
• Turn up volume only in noisy surroundings.
• Turn down volume before adding headset or earpiece.
• Limit time using headsets/earpieces at high volume.
• When using without a headset, do not place the speaker directly against your ear.
• Be careful with earphones, as excessive sound pressure can cause hearing loss.

Note: Exposure to loud noises for extended periods can temporarily or permanently affect hearing. The louder the volume, the less time is required before hearing is affected. Hearing damage from loud noise can be undetectable at first and has a cumulative effect.

Approved Accessories

⚠️ WARNING

• This radio meets RF exposure guidelines when used with Retekess supplied or designated accessories. Use of other accessories may not ensure compliance and may violate regulations.
• For a list of Retekess-approved accessories, visit: http://www.retekess.com

Guarantee

Please keep this guarantee card. No replacement if lost.

Most new products carry a two-year manufacturer's warranty from the date of purchase.

For warranty and after-sales service:

• Contact the seller where you bought the product.
• Products repaired by Our Local Repair Center.

For warranty service, a receipt proof of purchase from the actual seller is required for verification.

Exclusions from Warranty Coverage:

1. Any product damaged by accident.
2. Misuse, abuse, or unauthorized alterations or repairs.
3. If the serial number has been altered, defaced, or removed.

(Please fill in the following details: Model Number, Serial Number, Purchasing Date, Dealer, User's Name, Country, Post Code, Telephone, Address, Email)