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Video Settings
This.dialog.provides.access.to.all.of.the.key.video.settings.that.determine.image.
quality.and.link.performance.
Threshold
The.threshold.is.effectively.a.
noise.filter.that.differentiates.
between.valid.video.signals.
and.background.noise.or.
interference..This.has.the.
effect.of.reducing.unnecessary.
video.signals.between.the.
AdderView.CATx.and.the.
remote.system,.thus.improving.
performance..
Phase
The.phase.setting.adjusts.the.
alignment.of.the.host.video.
output.and.the.remote.system.
video.display.to.achieve.the.
sharpest.image.
Horizontal Position
Determines.the.horizontal.
position.of.the.host.screen.
image.within.the.viewer.
window.
Vertical Position
Determines.the.vertical.position.
of.the.host.screen.image.within.
the.viewer.window.
Brightness & Contrast
The.red,.green.and.
blue.constituents.of.the.
brightness.and.contrast.
can.be.set.individually..
Alternatively,.use.
the.Auto.button.
on.the.right.side.to.
automatically.optimise.
these.for.the.current.
host.and.connection.
speed.
Calibrate All
Click.to.
determine.the.
optimum.settings.
for.all.aspects.of.
video.the.video.
connection.from.
the.host.system.
Display activity
Indicates.the.level.
of.video.activity.
currently.in.
progress.
Using automatic configurations
•. Every.setting.can.be.individually.subjected.to.an.automatic.configuration.
(click.the.appropriate.‘Auto’.button).or.can.also.be.manually.adjusted.
•. Use.the.‘Calibrate.All’.button.to.automatically.determine.the.optimum.
settings.for.all.items...
Note: Before using the ‘Calibrate All’ option, if possible, remove on-screen
display (OSD) elements generated by the AdderView CATx IP or any other
connected KVM switches (such as a host name label or menu). These OSD
elements use different video rates to those of the host system(s) and can
affect the setting of the automatic threshold value. AdderView CATx IP uses
an improved calculation procedure to filter out the effect of these elements.
However, best results are obtained when the screen contains only host
system information.
Note: To maximise performance, the threshold level is automatically
increased by 50% when a slow link is detected.
Note: When the AdderView CATx IP is used with one or more other
switches, the threshold needs to be higher than 32 due to the significant
amounts of ‘noise’ that these switches introduce. The AdderView CATx IP
configuration should detect such noise and adjust the threshold accordingly. .
Setting the Threshold manually
Occasionally.it.can.be.useful.to.manually.adjust.the.Threshold.setting,.in.order.to.
achieve.a.setting.that.best.suits.your.particular.requirements..
1. Use.the.‘Calibrate.All’.function.to.ensure.that.all.other.settings.are.
optimised.
2. Click.the.Threshold.left.arrow.button.to.decrement.the.setting.by.one.and.
observe.the.‘Display.Activity’.indicator..
3. Repeat.step.2.until.the.Display.Activity.indicator.suddenly.rises.to.a.much.
higher.level.(i.e..50%)..This.will.mean.that.you.have.reached.the.noise.
boundary..At.this.point,.increment.the.Threshold.value.by.2.or.3.points.to.
achieve.an.optimum.setting.