Retevis RT97L Portable Repeater with RB48P/648P 10Pack and 10-way Charger 

This powerful combination includes the Retevis RT97L portable repeater and a pack of 10 RB48P/648P handheld walkie-talkies, along with a convenient 10-way charging station. The RT97L repeater boosts communication range significantly, allowing you to expand coverage across a larger area, making it an ideal solution for emergency preparedness, construction sites, and horticultural nurseries. Whether you’re managing a team on a building project or coordinating efforts in a garden center, this bundle ensures clear and reliable communication. With the 10-way charger, keeping your radios powered up and ready for use has never been easier, helping you stay connected when it matters most.

The Main Features of RB48P/RB648P IP67 Waterproof Walkie Talkie：

Advanced Triple Proof

Retevis RB48P/648P Construction Walkie Talkie features advanced triple proof. It is IP67 waterproof and dustproof, resistant to 0.1μm dense dust; drop-proof from a height of 2 meters; has passed 1000 drops from 2 meters without breaking; and is designed for harsh conditions. These high-power radios are made of PC + TPE material, making it sturdy and durable. 

Relay Channels

Retevis RB48P walkie talkie has relay channels. The relay channels efficiently extend the call distance by connecting to the base station.

2000mAh Li-ion large capacity battery

The Retevis RB48P and RB648P long-range walkie-talkie features a built-in 2000 mAh battery, allowing continuous use for up to 18 hours. It supports type-C charging and charge stations. The power-saving function can extend the life of your batteries.

The Retevis RB48P and RB648P heavy duty two way radio features an oversized button on the front and a side PTT. Designed with a large PTT button, the Retevis RB48P and RB648P long-range walkie-talkies allow for convenient two-way radio operation even while wearing gloves.

One key Group Call

No matter your channel, the one key group call function helps you quickly achieve team communication and increase communication and work efficiency.

LCD Display

The RB48 Plus high power walkie talkie with screen helps users check the working status. Its three backlight colors refer to different statuses. The red is transmitting, the blue is receiving, and the purple is on standby.

The Main Features of RT97L Radio Repeater：

25W High Power Repeater

With the 25W portable repeater kit, including an FRP antenna and coaxial cable, you get strong and reliable signals across your farm or building, minimizing dead zones for seamless communication.

Portable and Lightweight Radio Repeater

The 25W radio repeater, with its compact 11.22 × 2.68 × 7.28-inch size and lightweight 7.86lb design, fits easily in your backpack. It’s the perfect companion for maintaining strong signals in transient lifestyles or remote work scenarios.

IP66 Waterproof Repeater

Whether it's torrential rain or a dusty construction site, the waterproof repeater kit with FRP antenna and coaxial cable keeps your signal strong—rain or shine.

Obstacle Penetration

Right for industrial, construction, and agricultural settings, it minimizes signal dead zones and ensures a stable connection with your Raspberry Pi.

Flexible Mobility

Portable with one hand, it adapts to dynamic needs, allowing for free and agile movement as usage scenarios change.

Information Visualization

Equipped with an LCD screen design, ensuring that critical information is at a glance.

FAQ

1. Will the speaker-microphone from the RT97S work on the RT97L? 

Yes, the speaker-microphone for the RT97S and RT97L are compatible and can be used interchangeably.

2. What is the height and wind resistance rating of the RT97L antenna? 

The RT97L antenna model is MA09, operating in the 462-467 MHz frequency range.

Height: 175 cm (approximately 5.74 feet)

Wind resistance: 50-60 m/s

Additional specifications:

VSWR (Standing Wave Ratio) < 1.5

Antenna gain: 7.2 dBi

Connector type: SL16-K

Material: Fiberglass

3. Can the antenna cable that came with the RT97S be used for the RT97L?

Yes, the 15-meter 50-3 Pure Copper Coaxial Extender Cable for RT97 will work with the RT97L. However, the RT97L’s antenna cable has been upgraded to 15 meters of 50-7 cable, which offers lower loss compared to the previous version.

4. Can I replace the SL-16 connector with an N-type connector on the RT97L?

Yes, the RT97L can be adapted to use an N-type connector. We recommend the following two options:

Use an adapter: This is the most cost-effective and preferred method. The adapter is inexpensive and ensures no signal loss.

Replace the connector yourself: If you choose to replace the connector, please ensure that you use coaxial cable with an outer diameter of 4mm. Be cautious, as improper replacement can damage the paint and affect the waterproofing.

5. Will the RT97L operate on all 16 GMRS channels?

The RT97L is pre-programmed with 16 GMRS channels, all set according to GMRS standards. The device includes dedicated GMRS repeater frequency points, ensuring full compliance with regulatory requirements. To enhance convenience, the first 8 channels are set for wideband operation, while the remaining 8 are set for narrowband operation. This allows users to easily switch between the two bandwidth settings without needing additional programming.

6. RT97L repeater programming software has a problem when writing frequency?

When you click "Read", a password input box will appear. You can directly click "close" to ignore it, or input 288288.

If you want to set a password, click "write", the first "password" is 288288, then enter your "New Password".

7. What is the difference between 5W and 25W?

The difference in power can be significant. For example, using 5W of power, communication over a long distance might result in weak or no signal. However, with 25W of power, the range can greatly improve, allowing for clearer and more reliable communication over much longer distances.

While power is crucial, factors like antenna height also play an important role. In situations where elevation isn't favorable, higher power can be a big help in extending communication range.

8. Is the actual output power really 25W?

The factory output is between 22W-25W. However, when operating with a duplexer, there may be power loss, reducing output to around 15W-22W, depending on the quality, thickness, and length of the feeder cable. 

9. What’s the GMRS Repeater Frequency Range (TX and RX)?

For users operating with GMRS, the frequency range of the RT97L is:

• TX (Transmit): 462.550 - 462.725 MHz
• RX (Receive): 467.550 - 467.725 MHz

This range allows for effective communication and operation in the designated GMRS frequencies, which are crucial for users who need clear, uninterrupted signals.

10. How Does Using a Raspberry Pi Enhance RT97L’s Functionality?

The RT97L portable gmrs repeater is designed with flexibility in mind. By connecting the repeater to a Raspberry Pi via its DB-9 interface, users can expand the repeater's functions. This allows for easy programming and the ability to customize the repeater to fit specific needs, whether you’re operating in a particular area, enhancing security, or fine-tuning performance.

11. What Is Amp Absorption in TX and RX?

• Receive Mode Absorption: 180mA
• Transmit Mode Absorption: 5.5A

12. How is the RT97L Waterproof Even if the Doors Are Uncovered?

The RT97L gmrs mobile repeater is rated IP66 waterproof, meaning it can withstand powerful jets of water from all directions. This rating ensures that it performs well even in harsh weather or environments with heavy water flow. However, to ensure optimal performance and longevity, it's always a good idea to install the repeater in a protected location, especially in areas with extreme weather conditions.

13. Does the RT97L Have an Internal Duplexer?

Yes, the RT97L portable repeater comes equipped with an internal duplexer, which is essential for enabling the repeater to work efficiently with an antenna. The duplexer allows the device to handle both transmit and receive signals simultaneously without interference.

14. How Many Channels Does the RT97L Have? And What Does It Mean?

The RT97L is capable of storing 16 different channels, which means it can quickly switch between up to 16 communication frequencies.

15. What is the RT97L's Duty Cycle?

The duty cycle for RT97L repeater is 100%.

16. What is the DB-9 Female Connector used for?

RT97S base station comes with a DB-9 port, which can be directly connected to the included speaker mic and is compatible with Raspberry Pi.

17. Does this repeater work with your handheld FRS units? Or just the GMRS radios?

Because of the limitations on FRS by the FCC, this repeater can be only ued for GMRS radio, no mater handheld GMRS radios or Mobile GMRS radios.

18. Is this repeater compatible with other manufacturers handheld GMRs radios that are repeater capable? For example BTECH, Radioddity, Midland?

Yes, the RT97L repeater is compatible with GMRS handheld radios that are repeater capable.