Skew delay compensation, Installation and operation, cont’d – Extron Electronics MTP R 15HD RSA D User Guide User Manual

Page 19

MTP R 15HD RSA D • Installation and Operation

Installation and Operation, cont’d

Up to seven standard receivers (MTP RL 15HD RS

and MTP RL 15HD A, with or without SEQ) can be

connected in series between the transmitter and the

MTP R 15HD RSA D. This daisy chain is accomplished

using the standard receivers' Buffered Output

connectors. The total distance from the transmitter’s TP

output to the last receiver in the chain should not exceed

the recommended distance for the resolution being used.

The receivers' buffered outputs do not provide

pre-peaking control. The total recommended distance for

an entire daisy chain is the same as a single transmitter

and receiver. The transmitter's Pre-Peak switch for a

daisy chain or a single transmitter and receiver has the

same effect on the recommended transmission distance.

See the recommended transmission ranges in the

on page 2. The recommendations in the table apply

equally to a single transmitter and receiver as well as to

a transmission daisy chain. For example, the maximum

suggested range for 1024 x 768 video is 300 feet with

Pre-Peak off; 500 feet with Pre-Peak on while using one

transmitter and one receiver or one transmitter and three

daisy-chained receivers.

For daisy-chained units, the first receiver in the chain

must be at least 100 feet from the transmitter when the

Pre-Peak switch is on.

For daisy-chained units, any receiver in the chain closer

than 350 feet may experience some form of over-peaking

when the Pre-Peak switch is on.

Skew Delay Compensation

CAT 5/5e/6 TP cable can lead to registration errors between the

red, green, and blue video signals. Pair skew can be measured

with test equipment or identified by viewing a crosshatch test

pattern with a critical eye to determine if either the red, green,

or blue video image leads (appears to the left of) the other two

video images.
Try using the following methods to minimize or eliminate pair

skew:
• Switch to Extron Enhanced Skew-Free A/V UTP cable.
• Add a skew compensation cable equal to the length of

pair skew to the receiver’s output.

• Install an SEQ 100 15HD Skew Equalizer on the receiver’s

video output and adjust the skew for the leading video

image.