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Applied Wireless, Inc. 

 

900 MHz Video Transmitter 

 Models 

VT900-3A 

 

 

 

 

900 MHz Video Receiver 

Model VR900-3 

 
 

Product Descriptions 

Model VT900-3A from Applied Wireless, Inc. is a high quality transmitter 
designed to broadcast standard NTSC or PAL composite video signals to 
the Applied Wireless model VR900-3 receiver. The VT900-3 conforms to 
FCC Part 15 requirements for unlicensed use, and will transmit over 
distances up to 750 feet.*  The range may be increased substantially 
through the use of a directional antenna (such as a flat panel or Yagi) at 
the receiver. 

* Unobstructed, straight line-of-sight range, when used with the standard antennas 
included with the transmitter and receiver. 

The VT900-3 transmitter and the VR900-3 receiver provide three user-
selectable channels of operation within the 902 – 928 MHz band to enable 
simultaneous operation of up to two transmitters in a common area. 
Excellent frequency stability is assured through the use of crystal 
references. The products incorporate precise FM modulation and 
sophisticated filters to provide stable, interference-free high quality color 
or B/W video plus audio reception.  

The transmitter and receiver are housed in small yet rugged aluminum 
extrusion enclosures. AC power converters (12VDC) are supplied, along 
with RCA phono-type video and audio cables.  

The VT900-3 transmitter and the VR900-3 receiver are well-suited for 
many diverse applications, including distribution of video content 
throughout a building, commercial and industrial surveillance, monitoring, 
security, access control, etc.  

 
 

 

Installation Instructions 

 

Before Beginning the Installation 

Plan your installation carefully. The physical location and orientation of 
the transmitter itself (and its antenna) relative to the receiver antenna will 
have a significant influence on reception quality at the receiver, 
particularly at longest ranges. For best results, 

the transmitter and its 

standard antenna, as well as the receiver antenna, should be 
positioned vertically (pointing either up or down).

 If necessary, use 

double-sided foam tape or hook & loop fasteners (not supplied) to secure 
the transmitter to a vertical surface. Also, keep in mind that the RF signal 
from the transmitter will travel through most non-metallic building 
materials (wood, stucco, brick, etc.), however 

maximum stated reception 

range is based on unobstructed line of sight conditions.  

Summary of Contents for VT900-3A

Page 1: ...ser s Guide Instructions for Installation and Operation 900 MHz Video Transmitter Model VT900 3A 900 MHz Video Receiver Model VR900 3 Long Range Wireless Applications This page intentionally left blan...

Page 2: ...quality color or B W video plus audio reception The transmitter and receiver are housed in small yet rugged aluminum extrusion enclosures AC power converters 12VDC are supplied along with RCA phono t...

Page 3: ...AVR900 3 similar The VT900 3 s video input presents a terminated 75 ohm load to the output of the video source device Accordingly no other device s besides the VT900 3 should be connected to the vide...

Page 4: ...he front panel The Signal Strength indicator s will also illuminate if local in band interference is present If the Signal Strength LEDs are indicating that a strong signal is being received and yet t...

Page 5: ...annel 2 915 MHz Channel 3 923 MHz Video Frequency Response 0 5 4 0 MHz RF Output Power VT900 3A 1 mW 0 dBm Operating Voltage 7 5 to 18VDC Operating Current VT900 3A 65 mA FM Deviation 1V P P input 3 M...

Page 6: ...nergy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a parti...

Page 7: ...s of use of the product 3 Loss of the original purchaser s time LIMITATION OF IMPLIED WARRANTIES This warranty limits AW s liability to the repair or replacement of the product AW makes no express war...

Page 8: ...receiver is working RF Interference Check Signal Level LEDs for activity with Transmitter powered off If activity is present Try a different channel Check equipment operation at a different location...

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