COFDM wireless mini transmitter

Specifications

COFDM modulation and MPEG-2 compression;
100-500mW power input optional;
1.25/2.5MHz, 6/7/8MHz optional;

Introduction

The mini transmitter is highly integrated digital video transmission equipment that can realize wireless video transmission in mobile and NLOS (Non line-of-sight) conditions. With professional clothes and pinhole camera, it can be used in public security bureau or security department to finish covert missions (technical investigation and covert intelligence gathering). It can be also applied in emergency and evacuation, railway, marine and so on. We can use the mini transmitter with a specially designed multifunctional amplifier to meet the requirement of longer transmission range.

 

Features

COFDM modulation, Stable transmission

MPEG-2 video compression, DVD video quality

Mobile and NLOS (Non line-of-sight) transmission

High strength aluminum enclosure, dust-proof, water-proof and shock-proof

Lithium battery for power supply (continuous working time of every battery is an hour)

Modular design and highly integrated

Adjustable working frequency

Can be used conveniently with the specially designed clothes

Transmission security by encryption of AES 128 bit/ ALLTECH Basic Scrambling

Matched with power amplifier for longer range; Up to 80km in LOS (line-of-sight) condition

 

Application

The product is an ideal solution in remote surveillance, designed specially for the covert intelligence gathering market. By using a pinhole camera, the first responder can catch live scenes at the accident ground. Then the mini transmitter sends real-time images to the receiving center.

 

Transmitter Specification

Modulation		COFDM
Bandwidth		1.25 / 2.5 /6 / 7/ 8MHz (optional)
Constellation		QPSK,16QAM,64QAM
FEC		1/2,2/3,3/4,5/6, 7/8
Guard Interval		1/4, 1/8, 1/16, 1/32
Video Signal		1Vp-p@75Ω,PAL
Resolution		720x576 @ 8MHz, 352x288 @ 1.25MHz
Video Compression		MPEG-2  (4:2:0) / MPEG-4 (optional)
Frequency		300MHz-399MHz,400-500MHz (customized),
		560MHz-760MHz,760MHz-860MHz (customized)
		1.0-1.4GHz (customized),2.3-2.5GHz (customized)
		Frequency is adjustable continuously
Transmission Range		LOS: more than 20kms  (mini transmitter works only)
		LOS: more than 80kms  (mini transmitter works with amplifier)
		NLOS: more than 500m  (mini transmitter works only)
		NLOS: more than 1-2km  (mini transmitter works with amplifier)
	Working Voltage	AC 220V /DC12V
	Motion Speed	more than 180km/h
	Power Interface	Standard
	RF Interface	Standard N female
	Protection	Antirust and shockproof
	Power Output	22dBm-24dBm (up to 33 dBm with the amplifier)
	Latency	≤80ms
	Battery	50 minutes continuous working time
	Temperature	-20°C~+50°C
	Humidity	≤95%
	Encryption	AES 128 bit / ALLTECH Basic Scrambling (RS232 serial port)
	Second Harmonic	≤-43dB
	Dimension	Mini transmitter  101mm*84mm*15mm
		Power amplifier   251mm*195mm*47mm
	Weight	0.21kg (mini transmitter + battery)
		2.7kg ((mini transmitter + power amplifier)