Retevis DMR Repeater RT97P vs MMDVM Hotspot

As amateur radio enthusiasts continue to explore the world of digital communications, two popular options have emerged: digital repeaters and MMDVM (Multi-Mode Digital Voice Modem) hotspots. One of the standout options in the digital repeater market is the Retevis DMR Repeater RT97P. This article will provide an in-depth comparison of the MMDVM hotspot and the Retevis RT97P.

What is an MMDVM Hotspot?

The MMDVM (Multi-Mode Digital Voice Modem) is a versatile digital voice modem that supports various digital communication modes, including DMR, D-Star, and System Fusion (Yaesu). The MMDVM hotspot connects to the internet and allows radio operators to access digital networks from virtually anywhere. Its modular design provides flexibility, allowing users to customize their setup based on their needs.

Retevis Ailunce HD1 with MMDVM Hotspot

Key Features of MMDVM Hotspot

1. Multi-Mode Support: The MMDVM is capable of handling multiple digital modes, making it a favorite among versatile operators who wish to switch between DMR, D-Star, and other digital voice protocols.

2. Customizable: Users can tweak configurations, use different firmware (such as Pi-Star), and adjust settings based on their specific requirements.

3. Community Support: Given its popularity, the MMDVM has a large community of users and developers. This leads to continuous improvements, updates, and a wealth of resources available for troubleshooting.

4. Cost-Effective: MMDVM hotspots can be built or purchased at a reasonable price, often making them an economical choice for amateur radio operators looking to get into digital modes.

What is the Retevis RT97P DMR Repeater?

Retevis RT97P is a portable DMR repeater that supports both analog and digital signals, making it compatible with many DMR radios like the HD1, HD2, RT3S, RT81, RT29D, etc., and also analog radios like RT1, RT29, RT86, etc. It can set 8 channels, except the uplink and downlink frequencies are fixed. The CTCSS and color code of the uplink and downlink can be set according to your needs. The bandwidth can be set to wideband or narrowband. The TX power can be selected to be high or low, and the mode of channel works can choose analog (FM), digital (DMR), or digital and analog (FM/DMR). When the FM/DMR mode is selected, the repeater can forward to transmit the information of digital or analog walkie talkie.

Retevis DMR Repeater RT97P Kit with RT81 DMR Radio 2Pack

Key Features of Retevis DMR Repeater RT97P

1. Easy to Plug in and Set Up: The RT97P Base Station has a built-in duplexer, allowing TX/RX using only one antenna.

2. Portable Radio Repeater: The RT97P has a compact structure. The longest side is only 31cm and the weight is less than 3kg. 

3. Multiple Power Options: The RT97P can be powered by DC12V~24V, car power, or a solar battery, making it perfect for both fixed setups and mobile use.

4. Stable Performance: Users have reported that the RT97P offers stable connectivity and reliable performance, making it a dependable choice for everyday use.

5. Customizable Frequency: Besides the UHF and VHF stock frequency versions, RT97P also supports customization. The TX and RX frequencies can be customized between UHF (400-470 MHZ) or VHF (136-174 MHZ), Offset: ≥5MHz and ≤12MHz. You can send your customization requirements based on your handheld radio working frequencies. It takes around half a month to customize frequency.

Choose MMDVM Hotspot if:

● You want versatility in digital modes.

● You enjoy tinkering with configurations and settings.

● You're looking for a cost-effective solution that can grow with your needs.

Choose Retevis RT97P if:

● You're new to digital communication and prefer an easy setup.

● You primarily use DMR and do not need other modes.

● You value portability and want a straightforward device for everyday use.

Conclusion

The MMDVM hotspot offers versatility and customizability, while the Retevis RT97P provides ease of use and stability. Your choice depends on your needs—whether you prefer flexibility or simplicity. Both devices will improve your digital communication experience and help you stay connected with fellow amateur radio operators.

Thank you for reading this blog! If you have any questions, please leave your comments below. We are looking forward to your comments!

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