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Selecting the Channel of Operation 

Referring to Figure 1, use a small flat-blade screwdriver to select the 
channel (frequency) on which the transmitter will operate, by aligning the 
triangle-shaped pointer (not the screwdriver slot) to the number of the 
desired channel. Set the receiver to the matching channel. Channels are as 
follows: 

Channel 1: 907 MHz 
Channel 2: 915 MHz 
Channel 3: 923 MHz 
Any other setting of the channel selector (0, 4, 5, 6, 7, 8, 9) defaults to 
Channel 1. 

 
If two VT900-3 transmitters are to be used simultaneously in a common 
area (so as to broadcast two different video sources), set one unit to 
Channel 1 and the other unit to Channel 3. It is not advisable to attempt to 
use three units simultaneously as co-channel interference may occur. 

Connecting Video to the VT900-3 

Following the guidelines below, connect composite video source (output 
from a camera, for example) to the corresponding composite video input 
jacks on the transmitter’s rear panel (refer to Figure 2). Appropriate 
shielded cables are supplied with the transmitter for making these 
connections. 

Figure 1 – VT900-3 Front Panel 

(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 video source. If any additional 
device(s) must be driven by the source device, a video distribution 
amplifier (not supplied) must be used. 

 
Connecting the Receiver’s Video Output 

Using the shielded cables provided, connect the receiver’s video output to 
the appropriate inputs on the device that is to display, record, or process 
the received video signal. 

Connecting Power to the Transmitter and Receiver 

The VT900-3 and the VR900-3 each require an external power source of 
between 7.5 and 18 volts DC. A plug-in power converter (12VDC) is 
supplied with each unit. 

CAUTION: Do not apply power to the VT900-3 transmitter 
unless the supplied antenna is attached to its mating jack 
on the front panel. Powering the transmitter without an 
antenna may result in failure of the transmitter’s RF 
output device and void the warranty. 

Insert the power converter’s 2.1mm plug into the DC IN jack on the unit’s 
rear panel (refer to Figure 2). Plug each converter into a live 120VAC 
outlet. The unit’s red Power indicator LED (on the front panel, refer to 
Figure 1) should illuminate.  

Figure 2 – VT900-3 Rear Panel 

(VR900-3 similar) 

Содержание VT900-3A

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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