Pelco Active Receiver TW3008AR-4 User Manual

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SETTING THE DISTANCE DIALS
The front of the unit has eight distance dials, one for each channel. The default position for each dial 
is H (high mode) auto. When the dials are set to H or L (low mode) the adaptive technology in the 
TW3008AR-4 automatically adjusts the low, medium, and high frequency components of the video 
signal, allowing for the best possible video transmission. 
Figure 3.  Factory Default Dial Position
You can override the adaptive technology for each channel by manually adjusting the distance dials 
to a specific distance (1K, 2K, 3K or 4K). If you want to transmit video up to 4,000 feet (1,219 meters) 
of UTP cable, for example, turn the dial to 4K. You can set only one distance at a time per channel.
High mode is the default position and is used when the video output into a 75-ohm terminator is 
greater than or equal to 1 Vp-p. Low mode should be used when the video output into a 75-ohm 
terminator is less than 1 Vp-p.