DM229F Beidou-III short message communication module

DM229F

TheDM229FmoduleisashortmessagecommunicationmoduleforBeidou-3independentlydevelopedbyJinweijiDi.Itsupportsthe"EmergencyBeidouMessageProtocol"andenablesshortmessagecommunicationwithintheBeidou-3region.ThemoduleintegratesLNA,3Wpoweramplifier,andRFbasebandintegratedchips,etc.Itssizespecificationis20mm×20mm×2.8mm.Itfeaturessimpleapplication,highintegration,smallsize,andlowpowerconsumption.Itcanbewidelya..

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Product features

Emergency application
Fully support the emergency Beidou messaging protocol, and it can be detected through network entry and emergency protocol detection.
Strong anti-interference capability
It has the function of suppressing adjacent-frequency signal interference such as WIFI, Bluetooth and 4G, resulting in more stable performance.
High-integration ultra-small-sized packaging
Built-in LNA and PA, with an ultra-small size of 20mm×20mm, suitable for various portable devices
Technical support
We can provide a comprehensive design manual and technical support.

Technical Index

performance index	Performance of RDSS	Receiving frequency point	Receive the S2C outbound signal, frequency range: 2491.75 MHz ± 8.16 MHz
		receive sensitivity	S2C: 24kbps information frame, bit error rate: ≤ 1×10-5 (signal power - 123.8 dBm)
			S2C: 16kbps information frame, bit error rate: ≤ 1×10-5 (signal power - 127.5 dBm)
			S2C: 8kbps information frame, bit error rate: ≤ 1×10-5 (signal power - 130 dBm)
			S2C: 24kbps information frame, bit error rate: ≤ 1×10-5 (signal power - 123.8 dBm)
		Number of receiving beams	Beidou-3: ≥14
		First capture time	≤2s
		Transmitting frequency point	Lf1：1614.26 MHz±4.08MHz
			Lf2：1618.34 MHz±4.08MHz
		transmitted power	4dBW~5dBW（3W power amplifier）
		Accuracy of transmission frequency	≤5×10-7
		Phase error of transmitted signal modulation	≤3°
		Short message communication capacity	The maximum length of the regional message for Beidou-3 is 1,000 Chinese characters.
	Power characteristics	Receiving working voltage: +3.3V ± 0.2V
		Power amplifier operating voltage: +3.7V to +4.3V, typical 4.2V. Please note that it must not exceed 4.5V.
	Power dissipation	Operating power consumption: ≤ 200mA @ +3.3V
		Power consumption during launch: ≤ 3A @ 4.2V
physical property	Structure size		20mm（±0.2mm）×20mm（±0.2mm）×2.8mm（±0.1mm）
	Encapsulation mode		SMD Postmark hole
	Weight		≤3.5g
environmental index	Operating temperature		-40℃~+85℃
	Storage temperature		-40℃~+85℃