EXMAX EXD-737 풀밴드 라디오 수신기 사용 설명서

1. 서론

The EXMAX EXD-737 is a versatile full-band portable radio receiver designed for a wide range of listening experiences, whether at home or on the go. It offers exceptional reception capabilities across multiple frequency bands, including FM, AM, Shortwave (SW), Aviation (AIR), Citizens Band (CB), and VHF. Its compact design, intuitive controls, and robust features make it suitable for various indoor and outdoor activities.

Key features include a clear LCD display with backlight, multiple search modes, alarm clock functionality, and a programmable automatic power-off timer. The built-in rechargeable lithium battery ensures long-lasting enjoyment, and the included extended antenna enhances receiving sensitivity for optimal performance.

2. 패키지 내용

패키지를 열 때 다음 품목이 모두 들어 있는지 확인하세요.

• 1x EXD-737 Radio Receiver
• 1x 헤드폰
• 1x Micro USB Charging Wire
• 1x 사용자 설명서
• 1x 라니어드
• 1x Extended Antenna
• 1x 귀마개

Figure 2.1: EXMAX EXD-737 radio receiver and its complete set of accessories.

3. 제품 특징

The EXD-737 radio receiver is equipped with a comprehensive set of features designed for optimal performance and user convenience:

• 풀 밴드 리셉션: Supports FM (87.5-108MHz), AM (520-1720KHz), Shortwave (2.3-30MHz), AIR Aviation (118-138MHz), CB City Band (25-28MHz), and VHF Civil (30-223MHz) bands.
• 다양한 튜닝 방법: Manual search, automatic search, and full automatic search with storage capabilities.
• 메모리 저장: Can store up to 50 frequencies per band, totaling up to 300 channels.
• LCD 디스플레이: One-inch LCD with orange backlight accurately displays frequency, battery status, and sensitivity.
• 오디오 출력: Features a built-in 40mm, 8̚, 1W speaker for clear sound and a 3.5mm earphone jack for private listening.
• 전원 공급 장치: Integrated 700mAh 3.7V lithium rechargeable battery, with support for DC 5V external power supply via Micro USB.
• 알람 시계 기능: Set the radio to automatically power on or sound an alarm at a specified time.
• 수면 타이머 : Programmable auto power-off timer with settings from 10 to 90 minutes.
• 향상된 수신: Includes a retractable 7-section antenna and an additional 3-meter external cable antenna for improved signal sensitivity.
• 잠금 키: Prevents accidental operation when carried in a pocket or bag.

그림 3.1: 이상view of key features including sleep timer, battery, and memory.

Figure 3.2: The retractable antenna and diverse applications of the radio.

4. 컨트롤 및 디스플레이

Familiarize yourself with the buttons and ports on your EXD-737 radio for effective operation:

Figure 4.1: Front, top, and side views of the EXD-737 radio with labeled components.

• LCD 디스플레이: Shows frequency, time, battery level, and other operational indicators.
• BAND 버튼 : Cycles through available frequency bands (FM, AM, SW, AIR, CB, VHF).
• 설정 버튼: Used for setting time, alarm, and squelch (SQ) function.
• MODE 버튼: Converts between different modes within a band (e.g., FM-N/FM-W for VHF).
• 메모 버튼: For storing and recalling preset radio stations.
• VOL+ / VOL- 버튼: 볼륨 레벨을 조절합니다.
• TUN+ / TUN- Buttons: Used for tuning frequencies, selecting stations, or adjusting time/function settings.
• 전원/절전 버튼: Turns the radio on/off and activates the sleep timer.
• 잠금 버튼: Locks all buttons to prevent accidental presses.
• 이어폰 잭(3.5mm): 헤드폰 연결 용.
• Micro USB Jack (DC 5V): 내부 배터리를 충전합니다.
• 끈 구멍: 동봉된 끈을 부착하기 위한 용도입니다.
• 라우드 스피커 : 오디오 출력을 위한 통합 스피커.

5. 설정

Before using your EXD-737 radio, follow these initial setup steps:

5.1 배터리 충전

The EXD-737 has a built-in 700mAh lithium rechargeable battery. For first use, or if the battery is low, charge the device:

1. Connect the supplied Micro USB charging wire to the Micro USB jack (DC 5V) on the top of the radio.
2. Connect the other end of the charging wire to a DC 5V power source (e.g., a USB wall adapter, computer USB port, or power bank).
3. The battery indicator on the LCD will show charging status. A full charge typically takes about 4-5 hours.

5.2 Extending the Antenna

For optimal reception, especially for FM, SW, and VHF bands, extend the telescopic antenna fully. For AM reception, the internal ferrite bar antenna is used, and antenna extension is not typically required.

The radio also comes with an extended external antenna. To use it, plug its 3.5mm connector into the antenna jack on the top of the radio (next to the telescopic antenna base). This can further enhance receiving sensitivity, particularly for shortwave bands.

Figure 5.1: Connecting the extended external antenna for enhanced reception.

5.3 초기 전원 켜기

를 누르고 계세요 전원 / 수면 button to turn on the radio. The LCD display will illuminate, and the radio will typically resume the last listened-to frequency and band.

6. 사용 설명서

6.1 전원 켜기/끄기 및 볼륨 제어

• 전원 켜기/끄기: 를 누르고 계세요 전원 / 수면 단추.
• 볼륨 조절: 누르다 볼륨+ 볼륨을 늘리고 권 볼륨을 줄입니다.

6.2 밴드 선택

를 누르세요 밴드 button repeatedly to cycle through the available frequency bands: FM, AM, SW, AIR, CB, VHF.

6.3 Tuning and Searching for Stations

The EXD-737 offers several methods for finding stations:

• 수동 조정 : In any band, press 툰+ or 큰 술통- to manually adjust the frequency step by step.
• 자동 검색 : 누르고 있으세요 툰+ or 큰 술통-. The radio will automatically scan and stop at the next strong signal.
• Full Automatic Search and Store: This function scans the entire selected band and automatically stores all found stations into memory presets. Refer to the specific steps in the included user manual for this advanced feature.

6.4 Memory Functions (Storing and Recalling)

The radio can store up to 50 frequencies per band.

• To Store a Frequency: Tune to the desired frequency. Press and hold the 메모 button until the display indicates it's ready to save. Use 툰+ or 큰 술통- to select a memory slot, then press 메모 다시 확인합니다.
• To Recall a Stored Frequency: 짧게 누르세요 메모 단추. 사용하다 툰+ or 큰 술통- to cycle through the stored stations.

6.5 알람 시계 설정

The radio can be set to turn on automatically at a specific time or sound an alarm tone.

1. 라디오가 꺼진 상태에서 을 길게 누릅니다. 세트 button to enter time setting mode. Use 툰+ / 큰 술통- to adjust hours and minutes, and 세트 확인합니다.
2. 시간을 설정한 후 다음을 누릅니다. 세트 again to enter alarm setting mode. Adjust the alarm time using 툰+ / 큰 술통-.
3. 누르다 세트 to choose between alarm ringing sound or radio automatic power on. Confirm your selection.

6.6 취침 타이머 설정

취침 타이머 기능은 설정된 시간이 지나면 라디오가 자동으로 꺼지도록 해줍니다.

• While the radio is on, briefly press the 전원 / 수면 단추.
• Each press will cycle through the available sleep timer durations: 90, 80, 70, 60, 50, 40, 30, 20, 10 minutes, and OFF.
• Select your desired duration, and the radio will automatically power off after that time.

6.7 잠금 기능

To prevent accidental button presses, use the lock function:

• 잠그려면: 슬라이드 잠그다 switch (located on the top side of the radio) to the locked position. A lock icon may appear on the display.
• 잠금 해제하려면: 슬라이드 잠그다 switch back to the unlocked position.

7. Frequency Bands Overview

The EXD-737 supports a wide range of frequency bands, each with specific applications:

• AIR (Aviation Band): 118-138 MHz (5K/50K STEP SEL) - Listen to air traffic control communications. Sensitivity: 2UV (10DB SNR).
• FM(주파수 변조): 87.5-108 MHz (0.1MHZ STEP) - For local and international FM broadcast stations. Sensitivity: 2UV (30DB SNR).
• 오전 (Amp레벨 변조): 520-1720 KHz (9K/10K STEP SEL) - For local and international AM broadcast stations. Sensitivity: 3MV/M (20DB SNR).
• CB (Citizens Band): 25-28 MHz (5KHZ STEP) - For Citizens Band radio communications. Sensitivity: 1UV (10DB SNR).
• SW (Shortwave): 2-30 MHz (5KHZ STEP) - For long-distance international broadcasts and amateur radio. Sensitivity: 30DBUV (26DB SNR).
• VHF (Very High Frequency): 30-223 MHz (FM-N/FM-W) - Includes various civil bands. VHF-N can receive coast/train/racing/weather channels; VHF-W can receive campus radio and TV sound. Supports civilian VHF intercom band and US NOAA weather band frequency reception. Sensitivity: -5DBUV (20DB SNR).

Figure 7.1: Visual representation of the radio's supported frequency bands.

Figure 7.2: Diverse applications across the EXD-737's supported bands.

8. 유지관리

To ensure the longevity and optimal performance of your EXMAX EXD-737 radio, follow these maintenance guidelines:

• 청소: Use a soft, dry cloth to clean the radio's exterior. Do not use abrasive cleaners, solvents, or strong chemicals, as they may damage the surface.
• 저장: 장시간 사용하지 않을 경우, 라디오를 직사광선과 극한의 온도를 피해 서늘하고 건조한 곳에 보관하세요.
• 배터리 관리 : Although the battery is built-in, avoid fully discharging it frequently. If storing for a long time, charge it to about 50% every few months to maintain battery health.
• 안테나 관리: 접이식 안테나는 구부러지거나 부러지지 않도록 조심스럽게 다루십시오. 사용하지 않을 때나 라디오를 운반할 때는 안테나를 접어 두십시오.
• 습기를 피하세요: The radio is not waterproof. Keep it away from water, rain, and high humidity to prevent internal damage.

9. 문제 해결

If you encounter issues with your EXMAX EXD-737 radio, refer to the following common problems and solutions:

• No Power / Radio Does Not Turn On:
  • Ensure the battery is charged. Connect the radio to a DC 5V power source using the Micro USB cable and allow it to charge for a few hours.
  • Check if the LOCK switch is engaged. Slide it to the unlocked position.
• 수신 상태 불량/잡음:
  • Fully extend the telescopic antenna. For SW and VHF bands, consider using the included external antenna.
  • Try repositioning the radio, especially near a window or outdoors, to improve signal strength.
  • Interference from other electronic devices (computers, TVs, LED lights) can affect reception. Move the radio away from such devices.
  • For AM, try rotating the radio to optimize the internal ferrite antenna's orientation.
• No Sound from Speaker / Headphones:
  • Increase the volume using the VOL+ button.
  • If using headphones, ensure they are fully plugged into the 3.5mm earphone jack. Test with another pair of headphones if possible.
  • Ensure the radio is tuned to an active station and not just static.
• 버튼이 응답하지 않음:
  • Check if the LOCK switch is engaged.
  • Try turning the radio off and on again (a soft reset).

If the problem persists after attempting these troubleshooting steps, please refer to the warranty and support information.

10. 사양

Detailed technical specifications for the EXMAX EXD-737 radio receiver:

11. 보증 및 지원

EXMAX provides a 3년 품질 보증 for the EXD-737 Full Band Radio Receiver. This warranty covers manufacturing defects and ensures the product meets its specified performance standards under normal use.

For any questions, technical assistance, or warranty claims, please contact EXMAX customer support through the retailer where the product was purchased or refer to the contact information provided in the original product packaging. Please have your product model number (EXD-737) and purchase details ready when contacting support.