NiceRF DMR Digital Intercom Module DMR828S Featured The Combination of Dual Timeslot Communication and Repeater Station Communication

时间： 2024-05-23 来源：G-NiceRF

技术问答

The DMR828S is a cost-effective 2W full-featured digital radio module developed by NiceRF. It is compatible with commonly used analog radios on the market and features DMR Tier II digital radio functionality, with a built-in Moto AMBE++ vocoder. The module integrates microcontrollers, digital radio chips, RF power amplifiers, audio amplifiers, and other circuits internally. Customers only need to connect external power sources, speakers, and other devices to operate it as a small digital radio with 16 adjustable frequency channels. Its ultra-compact size also facilitates quick and easy integration into various handheld devices, enhancing the overall performance of end products.

Supported frequency bands and their ranges

Frequency bands and their ranges:

UHF band: 400-470 MHz

VHF band: 134-174 MHz

350 band: 320-400 MHz

Note: Choose one of the above frequency bands.

High Power Mode, Low Power Mode, Long Distance Transmission Mode for Digital Radio Modules

High Power Mode: In high power mode, the module can output 2W of power. In this mode, the transmission distance typically reaches several kilometers or even further. However, the specific transmission distance is influenced by factors such as terrain, buildings, and environmental interference.

Low Power Mode: In low power mode, the output power is lower, typically around 0.5W. Despite the lower power, under appropriate conditions (such as flat terrain or open areas without obstacles), it can still achieve transmission distances of several kilometers.

Transmission Distance: The transmission distance is influenced by various factors, including operating frequency, antenna gain, and environmental conditions. In open geographical environments, using high power mode can achieve longer transmission distances. However, in urban or mountainous areas with complex environments, relay stations or techniques such as using high-gain antennas may be needed to increase the transmission distance.

Dual timeslot communication, with the ability to communicate with repeater stations

Dual Timeslot Communication: The DMR828S digital radio module supports dual timeslot communication, meaning that two independent communication connections can occur simultaneously on the same channel. This allows users to engage in bidirectional communication on the same frequency, enhancing spectrum utilization and communication efficiency.

Repeater Station Communication: The DMR828S digital radio module can communicate with repeater stations. Repeater stations are typically located at elevated positions, providing broader communication coverage and better signal transmission quality. By communicating with repeater stations, the DMR828S can achieve communication over longer distances and maintain higher communication quality even in complex environments.

Full-Featured Digital Radio Module: Technology and Communication Methods

Digital radios utilize digital modulation and demodulation technology, employing digital signals for communication. Compared to analog radios, digital radios exhibit greater robustness during signal transmission, better resistance to interference and noise, and provide higher-quality communication services. Digital communication also allows for efficient data compression, enhancing spectrum utilization.

Communication Quality and Voice Clarity:

Analog Radio Modules: Communication quality with analog radio modules is significantly affected by environmental interference. Factors such as buildings, terrain, and weather may lead to signal attenuation, noise interference, affecting communication reliability and clarity.

Digital Radio Modules: Digital radio modules typically offer better communication quality as they use digital signal transmission and are often equipped with error correction and compensation technologies, which can overcome signal attenuation and interference to some extent.

Voice Clarity:

Digital radio modules typically provide clearer audio as digital signals exhibit better interference resistance. Even in noisy or signal-attenuated environments, digital radios can deliver relatively clear, nearly distortion-free audio.

Functionality and Data Transmission:

Digital radio modules offer far richer functionality compared to analog radio modules. In addition to high-quality voice communication, digital radios support data transmission, enabling the transfer of text messages, images, videos, and other multimedia data. This flexibility makes digital radios more versatile in applications such as monitoring, remote command, and control.

Security and Encryption Technology:

Digital radios utilize advanced encryption technology to ensure communication security. The encryption capability of digital communication far surpasses that of analog communication, mitigating security threats such as eavesdropping and malicious attacks, making digital radios advantageous in fields requiring high confidentiality.

Overall, the combination of dual timeslot communication and repeater station communication in the DMR828S enables it to provide reliable communication services in various application scenarios, particularly suitable for situations requiring wide-area coverage or communication in complex environments, such as commercial, public safety, emergency rescue, outdoor activities, etc.

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思为无线专注于提供高性能、性价比优异的无线对讲机模块，帮助客户在各类应用场景中实现高效通信。产品涵盖模拟、数字和全双工通信模块及功能板。为了满足不同市场和应用场景的需求，思为无线提供OEM、ODM定制服务，产品认证服务。本文从每个产品系列筛选几个产品供大家了解,帮助客户根据自身需求选择最合适的模块。

产品发布时间 : 2024-10-22

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Silicon Labs（芯科科技）产品选型指南

目录- 8-bit Microcontrollers 32-bit Microcontrollers High-performance analog products wireless ICs, SoCs and modules Sensors Interface chip Timing products Isolation products Audio products Video products Voice products Data products Development Tools

型号- C8051T604-GS,SI8420AD-A-IS,WF111,SI7007-A20-IM1,SI8035AA-B-IU,C8051T604-GM,C8051F813-GU,SI8642ET-IS,C8051F541-AM,SL16020DC,C8051F813-GM,C8051F587-AM,C8051F044,SI2434,SI4613,C8051F043,SI4614,C8051F046,C8051F045,C8051F587-AQ,SI2435,C8051F047,C8051F541-AQ,TS3001,TS3002,SI2439,TS3003,SI8712CC-B-IP,TS3004,C8051F060,C8051F531-C-IM,TS3006,C8051F062,SI8710AD-B-IS,C8051F061,SI8712CC-B-IS,C8051F064,C8051F063,EFM32LG230FX - QFN64,EZR32WG230F64R69G,EFM32WG880FX - QFP100,EFM32WG980FX - QFP100,SI8233BB-C-IS1,C8051F531-C-IT,SI51210,SI8635BD-B-IS,C8051F975-A-GM,SI8230BB-B-IS1,SI8232BB-B-IS,C8051F394-A-GM,SI4624,C8051T616-GM,SI4622,SI8635BT-IS,C8051F573-IM,SI4629,C8051F530-C-AM,SI8920BD-IS,C8051F530-C-AT,C8051F801-GM,C8051F711-GQ,C8051F585-IM,SI21802,C8051F585-IQ,EFM32LG390FX - BGA112,SI8605AC-B-IS1,C8051F370-A-GM,EFM8BB10F2G-A-QFN20,C8051F066,C8051F065,C8051F067,SI2457,SI3452B-B02-GM,SI88243ED-IS,C8051F801-GU,C8051F506-AQ,SI7005-B-GM1,SI2167-C,SI21682-C,SI7022-A20-IM,SI8642AB-B-IS,SI8650ED-B-IS,SI2167-B,SI8719BC-A-IP,TSM9118,SI8631AB-B-IS,TSM9117,SI8234AB-C-IS,TSM9119,SI8234AB-C-IM,EFM32WG390FX - BGA112,SI8620AB-B-IS,SI8719BC-A-IS,SI8631EC-B-IS1,C8051F565-AM,EZR32WG330F64R55G,SI8235AB-C-IS1,C8051F835-GS,SI1132,SI3500-A-GM,TS1102-100,C8051F506-AM,C8051F565-AQ,SL2309NZ,SI8065AA-B-IU,EZR32LG230F64R60G,C8051F551-AM,EZR32LG230F128R60G,EFM32LG980FX - QFP100,SI8640AB-B-IS1,SI8600AD-B-IS,SI8710BC-B-IP,SI8710BC-B-IS,C8051F007,EFM32LG290FX - BGA112,SI8712BD-B-IM,EFM32GG295FX - BGA120,C8051F38C-GQ,SI8244BB-C-IS1,C8051F000,C8051F002,C8051F38C-GM,C8051F001,SI8620EC-B-IS,TS1005,TS1004,C8051F006,TS1003,C8051F005,TS1002,TS1001,C8051F963-B-GM,C8051F504-AQ,EFM8SB10F4G-A-QFN20,C8051F823-GS,EZR32LG230F128R61G,C8051F020,EFM32TG822FX - QFP48,SI8650BC-B-IS1,C8051F388-GQ,EFM32G200FX - QFN32,C8051F537-C-AM,C8051F563-IM,C8051F019,EZR32WG330F256R55G,C8051F018,C8051F563-IQ,C8051F011,SI2401,SI4822,C8051F010,EFM32TG222FX - QFP48,EFM32TG210FX - QFN32,SI4820,C8051F012,C8051F015,SI4826,SI2404,SI4827,C8051F017,SI4824,C8051F016,C8051F504-AM,SI4825,EFM32WG232FX - QFP64,C8051T602-GS,C8051T327-GM,C8051T602-GM,BGM111,EZR32WG330F128R68G,C8051F863-C-GS,SI88244ED-IS,C8051F811-GS,C8051F589-AM,SI8421BD-B-IS,C8051F537-C-AT,EFM32GG395FX - BGA120,C8051F531-C-AT,C8051F854-C-GM,C8051F022,C8051F021,SI4831,C8051F023,SI2415,C8051F854-C-GU,SI4835,SI2417,SI4836,EFM32WG290FX - BGA112,SI2169-C,TS1101-100,SI8455BA-B-IU,C8051F040,C8051F042,C8051F041,EZR32WG330F128R69G,SI8232AB-B-IS1,C8051F344-GQ,SI8662EC-B-IS1,SI4840,SI8452AA-B-IS1,C8051F701-GQ,SI4844,C8051F502-IM,C8051F575-IM,SI88622ED-IS,C8051F502-IQ,CP2201,CP2200,EFM32LG942FX - QFP64,SI8641BB-B-IS,EFM32GG942FX - QFP64,SI8655BB-B-IS1,SI8400AB-B-IS,SI8030AA-B-IU,C8051F587-IM,C8051F206,C8051F587-IQ,EFM32TG840FX - QFN64,SI8460AA-B-IS1,C8051F500-IQ,EZR32WG230F64R61G,C8051F546-IM,C8051F500-IM,EZR32WG330F128R67G,SI8660AB-B-IS1,C8051F827-GS,C8051F988-GU,SI52142,SI52143,SI7050,SI52144,SI7055,SI7054,SI7053,C8051F567-AQ,C8051F590-AM,C8051F567-AM,C8051F988-GM,SI8450BA-B-IS1,SI7023-A20-IM1,SL28EB742,SI8231BD-B-IS,C8051F855-C-GU,EZR32WG230F128R63G,EZR32LG230F64R68G,SI8631BC-B-IS1,C8051F300-GM,SI52111,SI52112,SI8920AD-IS,C8051F855-C-GM,SL28EB740,EFM8SB20F16G-A-QFN24,SI8641BB-B-IS1,C8051F300-GS,EFM8UB10F16G-C-QFN28,C8051F920-GQ,C8051F815-GS,C8051F920-GM,C8051F220,EFM8UB10F16G-C-QFN20,TSM9938F,EZR32LG230F64R67G,C8051F221,C8051T320-GQ,SI8651EC-B-IS1,C8051F226,C8051F862-C-GS,TSM9938H,SI8661BB-B-IS1,EZR32WG230F64R63G,SI8661ED-B-IS,SI8220DD-A-IS,EZR32LG230F64R69G,SI8405AB-A-IS1,C8051F565-IM,EFM8SB10F2G-A-QFN20,C8051F395-A-GM,C8051F565-IQ,SI8641BD-B-IS,EFM32TG232FX - QFP64,C8051F231,SI8661BC-B-IS1,C8051F230,C8051T631-GM,SL2305NZ,SI8441AA-D-IS1,SI8630BD-B-IS,C8051T600-GS,C8051F236,SI8442BA-D-IS1,C8051F580-AQ,C8051T600-GM,C8051F803-GS,C8051F580-AM,TS1103-100,EZR32WG230F128R61G,C8051F996-GM,SI21822,SI8645BT-IS,C8051F302-GM,C8051F996-GU,SI8232AB-B-IS,SI8622BC-B-IS,C8051F302-GS,TS7003,C8051F708-GQ,TS7001,EFM32WG890FX - BGA112,EZR32LG230F64R61G,EZR32WG330F128R63G,SI21662-B,SI8600AC-B-IS,SI21662-C,EZR32WG230F128R60G,EFM32G222FX - QFP48,TSM9938T,C8051F523-C-IM,SI21812,EFM32GG990FX - BGA112,EFM32LG360FX - CSP81,SL23EP09NZ,SI8651BD-B-IS,TSM9938W,C8051F510-IM,C8051F556-IM,SI8422AD-B-IS,SI8232AD-B-IS,C8051F411,C8051F410,C8051F413,SI8405AA-A-IS1,C8051F412,C8051F381-GM,SI8040AA-B-IU,C8051F589-IM,C8051F965-B-GM,SI8461BA-B-IS1,SI8655BA-B-IS,SI8660BA-B-IS1,C8051F381-GQ,C8051T621-GM,C8051F346-GM,EZR32WG230F64R68G,EFM8BB10F8G-A-QSOP24,SI51214,C8051F346-GQ,SI51211,SI51218,SI8655BA-B-IU,SI8662BD-B-IS,SI8630BB-B-IS,EFM8UB20F32G-A-QFP32,SI51219,EZR32LG230F64R63G,EZR32WG330F128R60G,C8051F930-GM,SI8630BB-B-IS1,SI8660BB-B-IS1,C8051F502-AM,C8051F825-GS,EFM8UB11F16G-C-QSOP24,C8051F544-IM,EZR32WG330F128R61G,C8051F34A-GQ,EFM32GG332FX - QFP64,SI7006-A20-IM,C8051F502-AQ,SI2165-D,C8051F544-IQ,C8051F986-GU,C8051F34A-GM,SI21832,WF121,EZR32WG230F64R67G,SI8620BT-IS,C8051F569-AM,SI8642BC-B-IS1,C8051F930-GQ,C8051F986-GM,EFM8UB20F32G-A-QFP48,EZR32LG330F64R55G,EFM32LG380FX - QFP100,SI8630

选型指南 - SILICON LABS - 2019/1/14 PDF 英文下载

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提供G-NiceRF 2.4G无线模块,3D计步模块,ANT+无线串口模块,ASK发射模块,ASK模块四件套,LORA无线模块,UWB双向测距定位模块,低功耗蓝牙模块,对讲机模块,全双工无线数据语音模块,数字无线音频收发模块,卫星定位模块,无线模块,无线射频模块,无线透传模块,无线音频收发模块产品选型，可多尺寸选择，最大工作频率达6489.6MHz/7987.2MHz

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LORA1276-C1-915MHZ	LORA无线模块	16mmx16mm	ROHS,IC,ID,FCC	915MHz	100mW

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