Have you ever had trouble hearing people at work?

On a noisy construction site, you shout, but no one pays attention.

On a large farm, you have to walk a long way to get a message across.

In a busy gardening environment, team coordination is always slow.

Don't worry! The Retevis RB48 Plus 5W long range Waterproof Heavy Duty walkie talkies has a great feature to solve these problems: the Group Call.

It's set up a "Dedicated channel" just for your team. Makes communication very simple and efficient.

A Great Tool for Teamwork - The Group Call Feature

A Group Call means one person can talk to many people at the same time.

The boss doesn't need to walk around. He presses one button to give instructions. All workers hear him clearly and can work together smoothly. If there's sudden Emergency, he can instantly tell everyone to be safe.

Simple Step-by-Step Setup Guide

First, you'll need to prepare the accessories for programming.

RB48 Plus walkie-talkie, PC48 (RB48 Plus dedicated programming cable), Windows computer

Note:

① The RB48 Plus can only be programmed with the dedicated PC48 programming cable; standard Type-C cables will not work.

② Currently, this programming software only supports Windows.

Download the following two files

Software: https://drive.google.com/file/d/1-6PQNb6si2Pu4xQPvijlc33wGh5UeG5p/view?usp=sharing.

Driver: https://drive.google.com/file/d/1OSOLtx3s0fv5khwivK3lXpiY3o0NSDIm/view?usp=sharing.

Connect the walkie talkie, PC48 programming cable, and computer

Keep the radio powered on while programming.

Use the programming software to set up.

When "2CH" appears in the upper left corner of the RB48 Plus walkie talkie screen, group calling is successfully enabled.

No programming is required for other walkie talkies; simply copy the settings and you'll be done.

Easy copy

1.Transmitter: In shutdown status, press the big PTT key on the front and the Call key for 3s, and turn on the radio. RB48 Plus walkie talkie sends three beep sounds continuously twice and enters transmitting mode. 

2.Receiver: In shutdown status, press the big PTT key on the front and Mon/Scan key for 3s, and turn on the radio. The walkie talkies sends three beep sounds continuously twice and enters receiving mode.

Press the PTT key of the transmitter and the LED indicator lights up red, the radio transmits data. Restart RB48Plus to exit the mode.

The LED indicator of the receiver turns purple to blue, the radio receives the data. After receiving the data, the walkie talkie will turn on automatic.

After the operation is completed, you can make a group call.

Easy Setup, No Headaches: Common Problems and Tips

When setting up or using the group call function for the first time, you may encounter some minor issues.

Don't panic! Here's a troubleshooting guide to help you effortlessly set up and program the frequency:

Question 1: The software is working correctly, but I can't program the frequency.

Answer:

1. Check that the frequency programming cable is the PC48 cable, specifically designed for the RB48 Plus. A standard TYP-C cable won't program the frequency.
2. Is the radio powered on when programming the frequency?
3. Did you select the correct port and software?

（Please open "My Computer" - "Manage" - "Device Manager" - "Ports" to confirm whether the port is displayed normally? Which port is selected? If a yellow exclamation point triangle appears, it means that the driver installation failed.）

Question 2: Why are some members not receiving messages during a group call?

Answer:

This is the most common reason!

1. Group Calling is Not Enabled: Ensure that group calling is enabled on all members' walkie-talkies.
2. Channel Inconsistency: Ensure that group calling is configured on the same channel for all members' walkie-talkies.
3. CTCSS/DCS Code Inconsistency: Check that the CTCSS/DCS code is configured and that all devices have the same CTCSS/DCS code parameters. The CTCSS code is like a channel's "access code"; if the code is incorrect, you won't be able to access the channel.
4. If the problem persists, we recommend using the one-click copy feature for quicker communication.

Question 3: The computer cannot download and use the frequency writing software

Answer:

1. Currently, the software only supports Windows systems.
2. Some computers have lower versions and the C drive does not support downloading software. You need to manually add a folder on the desktop and then download the software to the folder.

The RB48 Plus walkie-talkie's group calling feature solves even the most complex communication challenges with simple operation.

Configure your group calling channel now and experience one-touch, fully accessible calls, leading your team to greater efficiency!

If you encounter any issues during setup or use, please feel free to contact our customer service team. We will provide a quick response and provide one-on-one answers to ensure smooth communication.