WEP5540/WEP5541 4G Village-leveled Emergency Audio Decoder

Name: WEP5540/WEP5541 4G Village-leveled Emergency Audio Decoder
Brand: Guangzhou DSPPA Audio Co., Ltd.

Features

● With LCD screen to display signal intensity and playing status
● Built-in 2 channel RDS radio, for normal and emergency FM
● With 2 Aux input and one Aux output
● Local mic and superior level broadcasting with priority
● Can connect with external FM transmitter, cover the village
● With telephone input and SMS function

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Introduction
Specification

The WEP5540 is a multi-network, multi-functional cloud broadcasting control host that integrates diverse control capabilities. When used with different upstream and downstream devices, it can form various application systems. It is mainly designed for 4G/5G/IP network transmission, wireless/wired co-cable transmission addressable systems, rural broadcasting village-wide sound projects, and small to large-scale broadcasting engineering systems. Powered by an ARM core and a DSP radio chip, the unit follows a design philosophy of diversified integration and optimized resource utilization. It incorporates functions such as emergency broadcasting, constant-voltage power amplification, monitoring, microphone interfaces, and power synchronization control, delivering a simple, practical, stable, and energy-efficient solution.

Model			WEP5540
Input Interfaces	1 Wireless Input		F-type connector (75Ω)
	1 Wired Input		F-type connector (75Ω)
	1 FM Input		F-type connector (75Ω)
	1 IP Input		100/1000Mbps, UDP protocol
	1 GPRS Receiving Module		Supports remote emergency insertion via SMS or phone call
	2 Audio Line Inputs		RCA connector
	1 RDS Input		BNC connector
	1 USB Input		USB port
			Codec format: MP3
	1 Microphone Input		6.35Mm jack
	IP Output		1 IP output, UDP protocol, 100/1000Mbps network port
	1 Audio Output		RCA connector
	1 Monitoring Speaker		Output power: 3W
	1 FM Output		F-type connector (75Ω)
	1 Controlled Power Output		220V, 5A
Amplifier Output	Output Power		Greater than 200W, constant-voltage output
Technical Parameters	Reception Mode		Supports FM/IP
	Reception Frequency Range		FM: 87MHz~108MHz
	Frequency Output Range		76-108MHZ
	RF Signal Input Level		FM: ≤-50dBm
	Modulation Output Parameters	Distortion (100% modulation)	＜0.5%
		Frequency Response (no pre-emphasis/de-emphasis)	±0.5dB
		Signal-to-Noise Ratio (100% modulation)	> 60dB
		Left/Right Channel Separation	> 40dB
		Left/Right Channel Level Difference	＜0.4dB
		Carrier Frequency Tolerance	≤2KHZ
		Carrier Output Level	≥110dBuV
		Spurious AM Noise	≤-45dB
		Audio Frequency Response (100Hz-10kHz)	≤1.5dB, ≥-1.5dB
		Audio Frequency Response (40Hz-15kHz)	≤1.5dB, ≥-3dB
		Audio Total Harmonic Distortion	≤1.5% (±75kHz frequency deviation, 1kHz test frequency)
	Audio Encoding/Decoding		Codec	MPEG-1 Layer 2
			Sampling Rate	48KHz
			Bit Depth	24-bit
			Bitrate	64Kbps
System	LCD display with button operation
	Simplified Chinese user interface
	Temperature Range		Operating temperature: 0~45°C; storage temperature: -20~80°C
	Power Supply		AC 100~265V±10%, 50/60Hz
	Power Consumption		<135W