IHSE USA R434-91 Series SDLink Rackmount Hubs - Manual (Page 30)

28 CATx KVM Extender Range
3. Select the video channel you want to configure using one of the following
keys (not on the numeric keypad):
Channel Command Key
Select Channel 1 For Adjustment <1> (default)
Select Channel 2 For Adjustment <2>
Select Channel 3 For Adjustment <3>
Select Channel 4 For Adjustment <4>
Select ALL Video Channels <0> (Channel 0)
Use Channel 0 to tune all video channels simultaneously. This simplifies the
procedure for setting up large multi-head installations where a consistent
cable type is used and the adjustments required should be almost the same.
4. Reset the selected channel(s) by pressing:
<Left Control> + <Home>
5. Step through the Assisted EQ settings to find the level that gives the best
image.
Assisted EQ Command Key Sequence
Next Assisted EQ Setting <Left Control> + <PgUp>
Previous Assisted EQ Setting <Left Control> + <PgDn>
Assisted EQ steps through a table of preset LF & HF EQ values for
different lengths of cable (in 25m increments calibrated from 0 to 375m).
Each time you enter Command Mode and start adjusting Assisted EQ, the unit
resets LF and HF values.
After finding the best setting, you will probably want to fine-tune the LF and HF
equalization settings (see steps 8&9). This is best done after adjusting for any
color skew as described below.