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Lisheng is the professional manufacturer, we would like to provide you Dual Band Dmr Mobile Radio and we will offer you the after-sale service and timely delivery. Dual Band DMR Mobile Radio is a digital amateur radio transceiver that adopts the latest digital transmission technology, has programmable functions, supports VHF/UHF dual frequency bands, covers the full frequency range, and can meet the needs of different people and usage environments. Its programmable function allows users to configure different channels to meet the needs of various communication modes. It has a compact appearance and is easy to carry and install. The LCD display can display various operating information, and the built-in battery also has a large capacity standby time. Dual Band DMR Mobile Radio is mainly used for communication between professionals, such as business, industry, military, public affairs and emergency relief. It provides reliable, high-quality communication services, providing users with security and convenience on different occasions. For example, in emergency rescue and public affairs, people need voice communication through radio equipment to coordinate rescue activities; in business and industry, people use DMR's two-way radio equipment to improve productivity and work efficiency; in the military, people use DMR Mobile transceivers to encrypt and ensure the confidentiality of communications. Dual Band Dmr Mobile Radio has a compact and simple design, making it easy to carry and install. Its LCD display can clearly display the current channel and various parameter information, enhancing visibility and ease of operation during use. It also has a built-in battery that provides users with a long standby time of 24 hours, and long-lasting communication requirements are met. Moreover, Dual Band DMR Mobile Radio has multiple channels and can support multiple users to communicate in the same channel, greatly improving communication efficiency and reliability.
M4 is available in both DMR Tier 2 and analog modes, it supports AES 256 encryption keys to secure communication. Rugged and Reliable, IP68 ingress protection, the radio can use across multiple environments and industries.
M4EX Intrinsically Safe version is specially designed for those who work in environments with explosive gas and combustible dusts, providing secure and reliable voice and data communication in the dangerous areas.
General | |
Frequency Range |
136~174MHz,350~400MHz 400~470MHz,450~520MHz |
Channel Spacing | 12.5 KHz / 25 KHz |
Channel/Zone Capacity | 32Channels /2 Zones |
Operating Voltage | 7.4V |
Battery Capacity | 2200mAh |
Battery Life (5/5/90) | Analog: 11 hours ; Digital: 14 hours |
Vocoder Type | AMBE+2 |
Frequency Stability | ±1.0ppm |
Antenna Impedance | 50Ω |
Dimensions (without Antenna) | 133.5*61.7*40mm |
Weight | Around 300g |
Ingress Protection (IP) Rating | IP68 |
Receiver | |
Analog Sensitivity | 0.2μV (12dB SINAD) |
Digital Sensitivity | 0.22μV (Typical) (BER 5%) |
Adjacent Channel Selectivity | 60dB @ 12.5KHz / 65dB @ 25KHz |
Intermodulation Rejection | 60dB @ 12.5KHz / 60dB @ 25KHz |
Blocking | 84dB @ 12.5KHz /84dB @ 25KHz |
Co-Channel Rejection |
-12dB @ 12.5KHz -8dB @ 25KHz |
Spurious Response Rejection | 65dB @ 12.5KHz / 65dB @ 25KHz |
Rated Audio Output Power | 1.0W /16Ω |
Conducted Spurious Emission |
<-57dBm(9KHz~1GHz) <-47dBm(1GHz~12.75GHz) |
Transmitter | |
RF Power | 1W (Low) / ≤5W (High) |
Power Margin Variation | +2/-3dB (under Extreme Conditions) |
Frequency Error | ±1.0ppm |
FSK Error | <5% |
4FSK Transmission Bit Error Rate (BER) |
≤1×10-4 |
4FSK Modulation Frequency Deviation Error |
≤10.0% |
Occupied Bandwidth (PDT/DMR) | ≤8.5KHz |
TX Attack/Release Time | ≤1.5ms |
Adjacent Channel Power | ≤-50dB @12.5KHz /≤-60dB @25KHz |
Transient Adjacent Channel Power | ≤-50dB @ 12.5KHz / ≤-60dB @ 25KHz |
FM Modulation |
16K0F3E @25KHz/ 11K0F3E @12.5KHz |
4FSK Digital Modulation |
12.5KHz(data only):7K60FXD 12.5KHz(data+voice):7K60FXE |
Audio Distortion | ≤3% @ 40% Deviation |
Audio Response | +1 ~ -3dB |
FM Hum and Noise | 40dB @ 12.5KHz / 45dB @ 25KHz |
Spurious Emission |
≤-36dBm (9KHz~1GHz) ≤-30dBm (1GHz~12.75GHz) |
Note: The above specifications are tested in accordance with applicable standards. Due to the continuous development of technology, the above indicators are subject to change without prior notice.
The M4 is IP68 dust and waterproof, this rugged construction provides dust-tight protection making it suitable for outdoor use.
The free slot can be allocated to enhance frequency efficiency and timely response under emergency.
Adopts AES256 encryption to secure communication privacy and optimize information safety.
Communicate effortlessly in a mixed group of analog and digital radios, automatically switching with no user intervention.
Hear and be heard in noisy environments like construction sites using crystal-clear digital technology and a powerful speaker.
Ensure you’re communicating with the intended team by receiving a customizable voice announcement when switching channels.
we are committed to delivering top-quality two-way radio products, ensuring each product meets the highest standards through rigorous inspection and packaging processes. Our inspection and packaging team bears the responsibility of ensuring customers receive reliable products, providing a worry-free user experience.
1、Visual Inspection: Each two-way radio undergoes a thorough visual inspection to ensure flawless aesthetics that align with the company's brand image.
2、Functionality Testing: Our inspection team conducts comprehensive functionality tests on every radio, ensuring all features operate correctly. This includes key functions such as audio quality, signal strength, and channel switching.
3、Durability Testing: Products undergo durability tests to ensure they function properly in various environmental conditions, including extreme temperatures, humidity, and vibrations.
4、Battery Performance Testing: Battery life is crucial for radio performance. Strict performance tests are conducted on batteries to ensure reliable, extended use.
1、Anti-Static Packaging: Each radio undergoes anti-static packaging to prevent electrostatic damage during transportation.
2、Environmentally Friendly Packaging: Committed to sustainability, our packaging materials adhere to international environmental standards.
3、Shock-Resistant Packaging: Professional shock-resistant packaging is employed during transportation to prevent damage to products.
4、Integrity Check: The packaging team performs a final integrity check to ensure products remain intact and undamaged after the packaging process.
Our inspection and packaging processes aim to surpass customer expectations, ensuring that every two-way radio received has undergone rigorous testing and meticulous packaging as a high-quality product.
Customer Evaluation and Feedback:Satisfied customers are our number one priority