1. 이상view
The Retevis RB48 Plus is a heavy-duty, long-range GMRS two-way radio designed for reliable communication in various environments. Featuring IP67 waterproofing, shock resistance, and a robust 2000mAh battery, it ensures clear and consistent performance. This manual provides essential information for setting up, operating, and maintaining your RB48 Plus radios.
2. 패키지 내용
Upon unboxing your Retevis RB48 Plus, verify that all the following items are included:
- 6 x RB48 Plus Two Way Radio (with Li-ion battery)
- 6 x 슬링
- 6 x 벨트 클립
- 6핀 충전기 1개
- 1 x DC 어댑터

Image: All components included in the Retevis RB48 Plus package.
3. 제품 특징
- 장거리 통신: The RB48 Plus operates with 5W high power, providing strong communication coverage up to 350,000 sq. ft. or 30 stories tall. This ensures reliable contact across large areas.
- 첨단 3중 방호 설계: Rated IP67, the radio is waterproof (withstands 1m depth for 30 minutes), dustproof (against 0.1μm dense dust for 8 hours), and shock resistant (survives 2-meter drops 1000 times).

Image: The RB48 Plus demonstrating its triple-proof capabilities against water and dust.
Video: Demonstrates the RB48 Plus's durability and long-range communication on construction sites, highlighting its heavy-duty features.
- One-Key Group Call: Facilitates instant communication with all team members simultaneously, regardless of their current channel, by pressing a dedicated group call button.
- 2000mAh 리튬 이온 배터리: Provides up to 18 hours of work time and 100 hours of standby time. Fully charges in 4-5 hours.
- NOAA 날씨 경보: Equipped with 11 NOAA channels to keep users informed about severe weather conditions, enhancing safety.
- 통화 진동: The radio vibrates to alert you of incoming messages, useful in noisy environments or when discretion is needed.
- 복스 기능: 음성 인식 전송 기능으로 손을 사용하지 않고도 작동할 수 있습니다.
- 듀얼 PTT: Two Push-to-Talk buttons for convenient operation.
4. 설정
4.1 안테나 부착
Carefully screw the antenna onto the top connector of the radio until it is finger-tight. Do not overtighten.
4.2 무전기 충전
The RB48 Plus offers two charging methods:
- Type-C 직접 충전: Plug a Type-C USB cable directly into the charging port on the side of the radio. Ensure the waterproof cover is securely closed after charging.
- Six-Way Charging Base: Insert the radios into the dedicated slots on the six-way charger. Connect the DC adapter to the charging base and plug it into a power outlet. The charging base features multiple safety protections against overcharging, overheating, and short-circuits.

Image: The RB48 Plus radio showing its Type-C charging port.
Video: Demonstrates the setup and use of the six-way charger for Retevis RB48 series walkie talkies, highlighting its efficiency and safety features.
4.3 벨트 클립 부착
Align the belt clip with the designated screw holes on the back of the radio and secure it with the provided screws.
4.4 전원 켜기/끄기
Rotate the power knob clockwise to turn on the radio. Rotate counter-clockwise to turn it off. The radio will audibly announce the current channel number upon powering on.
5. 사용 설명서
5.1 채널 선택
To change channels, press the 메뉴 button once. Use the Up/Down arrow buttons on the side to select the desired channel. Press 피티티 선택을 확인하세요.
5.2 푸시투토크(PTT)
Press and hold the PTT button on the side or front of the radio to transmit your voice. Release the PTT button to receive. Speak clearly into the microphone located at the bottom of the radio.
5.3 통화 버튼
를 누르세요 부르다 button to send an audible alert to other radios on the same channel and privacy code. This is useful for getting attention in noisy environments.
5.4 그룹 통화 기능
The RB48 Plus features a dedicated group call button. Press this button to initiate a group call, allowing all radios on any channel within the group to communicate simultaneously.
5.5 NOAA 기상 경보
길게 누르세요 부르다 button to activate NOAA Weather Alert mode. The radio will scan through 11 NOAA channels and provide weather updates.
5.6 VOX 기능
To enable or disable VOX, navigate through the menu using the 메뉴 button until you find the VOX setting. Use the Up/Down arrows to adjust the sensitivity level (1-9) or turn it off. Confirm with 피티티.
5.7 키 잠금
길게 누르세요 메뉴 키패드를 잠그거나 잠금 해제하는 버튼으로, 설정이 실수로 변경되는 것을 방지합니다.
5.8 비상 경보
를 누르세요 위급 신호 button to activate an emergency alarm. All radios on the same channel will receive the alarm, alerting others to your situation.
Video: Explains how to use the group call function, cancel CTCSS/DCS, and other features of the RB48 Plus two-way radio.
6. 유지관리
6.1 청소
라디오 표면을 부드러운 천으로 닦으세요.amp 옷감. 가혹한 화학 물질이나 연마성 세제를 사용하지 마십시오.
6.2 배터리 관리
To prolong battery life, avoid overcharging. Store the radio in a cool, dry place when not in use. The 2000mAh Li-ion battery is designed for long-lasting performance.
6.3 방수 및 방진 관리
Ensure all port covers (e.g., Type-C charging port) are securely sealed to maintain the IP67 rating. Avoid submerging the radio for longer than 30 minutes or deeper than 1 meter.
7. 문제 해결
7.1 의사소통 문제
- 다른 무전기와 통신 불가: Ensure all radios are on the same channel and have matching CTCSS/DCS codes.
- Weak signal or limited range: Check battery level. Ensure no large obstructions (buildings, hills) are between radios. The maximum talking range is 3 miles in optimal conditions.
7.2 Disabling CTCSS/DCS Codes
If you are unable to communicate with other RB48 or RB48P radios on channels 1-22, it may be due to differing CTCSS/DCS settings. To disable CTCSS/DCS:
- 대기 모드에서는 메뉴 키를 두 번 누르세요.
- Adjust the CTCSS/DCS number to "00".
- This will allow communication with other RB48P radios directly on the same channel.

Image: Instructions on how to resolve communication issues between RB48 and RB48P radios due to CTCSS/DCS settings.
Video: Shows how to disable all CTCSS/DCS tones in one key on the Retevis RB48 Plus radio.
7.3 공장 초기화
공장 초기화를 수행하려면:
- 라디오를 끄세요.
- Press and hold the PTT button and the DOWN button on the left side.
- While holding these buttons, turn the radio on using the knob.
- You will hear a "di-di" sound, indicating a successful factory reset.
Video: Demonstrates the steps to perform a factory reset on the Retevis RB48 Plus radio.
8. 사양
| 특징 | 값 |
|---|---|
| 품목 무게 | 1.11파운드 |
| 제품 치수 | 1.3인치 깊이 x 2.4인치 너비 x 8.1인치 높이 |
| 품목 모델 번호 | FA9061P-C9059Q |
| 배터리 | 6개의 리튬 이온 배터리 필요(포함) |
| 디스플레이 유형 | 액정표시장치 |
| 상표 | 레테비스 |
| 색상 | 노란색 |
| 채널 수 | 30 |
| 특징 | 2000mAh battery, 8 Repeater Channels, Dual PTT, IP67 waterproof and dustproof, Shockproof |
| 주파수 범위 | GMRS |
| 통화 범위 최대 | 3마일 |
| 권tage | 7.4볼트(DC) |
| 방수 레벨 | 방수복 |
| 배터리 수 | 6개의 리튬 이온 배터리 필요(포함) |
9. 보증 및 지원
Retevis provides a 5-year warranty for the radio body and a 1-year warranty for accessories. You also have a 30-day no-reason return policy. For maintenance services beyond the warranty period, buyers are responsible for the corresponding costs. For any inquiries or support, please contact Retevis on Amazon, and they will respond within 12 hours.





