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UHF 400-480mhz Digital Mobile Radio VHF 134-174MHz 2W 8Km Audio Transceiver Module

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I am pleased with them. It was a good choice for our small application. It is a robust device even it has a cheap price. I will use them in our further applications when we should use remote control. Thank you for your support.

—— Codreanu from Romania

Great news! We successfully performed the installation of the two units and transmitted our 4-20mA signal with both antennae. Even the smaller antenna suffices to transmit the signal without any losses whatsoever. So you can understand that we are very happy :) .

—— Kekarios from Greek

I believe you and your products. Sunny is very responsible. The RF modules are really strong and stable. Engineer's suggestions are useful to me. The most important is module's program can updrade on-line by myself. For some special projects, they can customize according my requirements. Thank you for your support all the time.

—— Singh from India

First of all I'd like to thank you for you're prompt service. The system now works perfectly. I left a positive response on your web site. I hope it attracts more customers for you.

—— Peter from Australia

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UHF 400-480mhz Digital Mobile Radio VHF 134-174MHz 2W 8Km Audio Transceiver Module

Name: UHF 400-480mhz Digital Mobile Radio VHF 134-174MHz 2W 8Km Audio Transceiver Module
Brand: Lensen
SKU: LS-DMR828
Price: 1.00 USD
Availability: InStock
Rating: 4.8 (191 reviews)

Large Image : UHF 400-480mhz Digital Mobile Radio VHF 134-174MHz 2W 8Km Audio Transceiver Module

Product Details:

Place of Origin:	China
Brand Name:	Lensen
Model Number:	LS-DMR828

Payment & Shipping Terms:

Minimum Order Quantity:	2pcs
Price:	Negotiation
Packaging Details:	standard carton
Delivery Time:	2-6days
Payment Terms:	T/T, Western Union
Supply Ability:	6000pcs/month

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Detailed Product Description

Power Output:	2W	Frequency:	VHF/UHF
Distance:	8km LOS	Interface:	RS232/RS485/TTL
Baud Rate:	1200bps/2400bps	Application:	Marine
High Light:	digital audio module , wireless audio transceiver module

UHF 400-480mhz Digital Mobile Radio VHF 134-174MHz 2W 8Km Audio Transceiver Module

Features

UHF band frequency: UHF 400-470mhz / VHF 134-174MHz / 320-390MHz
Distance up to 8Km
Max power output to 2W
low power to 0.5W
High Sensitivity:-124dBm
Bit error rate down to 1% under -121dBm
Independent frequency for Tx and Rx
Bandwidth: 12.5 / 25 KH
Voice and text messages communication
Reminder for input calling, calling status checking
DMR /Analog walkie talkie
Message transmission and reception
Built-in EEPROM, data saved even powered off
1ppm TCXO crystal
51 CTCSS
166 CDCSS
9 adjustable volume
Enhanced encryption of Voice and Text message

Application

Small professional walkie talkie
Invisible intercom system
Building community security system
Sport products
Handheld / Pocketable device
Audio surveillance system

Pin Definition

Pin No.			Signal Name	Definition	Description	Remarks
Power		1	VCC	DC12V±10%	Maximum transmission current: 1.5A
Power		2	GND	Grounding of power supply

Signal base	1		GND	Grounding of power signal
	2		A(TXD)	Data receiving	TTL TX / RS232 TX / RS485－A	Choose one
	3		B(RXD)	Data transmitting	TTL RX / RS232 RX / RS485－B	Choose one
	4		NC
	5		DGND	Grounding of Signal
	6		PTT	Audio transmitting control
	7		MIC IN	Microphone input control
	8		SPEAKER OUT	Speaker output control
	9		TEST	Factory testing

Pin Definition

Pin No.		Signal Name	Definition	Description	Remarks
Power	1	GND	Grounding of power supply
Power	2	VCC	DC12V±10%	Maximum transmission current: 1.5A

Signal base	1	RxD (TTL)	Data receiving of TTL
	2	A(TXD)	Data receiving	RS232 TX / RS485－A		Choose one
	3	B(RXD)	Data transmitting	RS232 RX / RS485－B		Choose one
	4	TxD (TTL)	Data Transmitting of TTL
	5	DGND	Grounding of Signal
	6	PTT	Audio transmitting control
	7	MIC IN	Microphone input control
	8	SPEAKER OUT	Speaker output control
	9	TEST	Factory testing