Learning plan, Ingress scan – Televes Serie H-30 User Manual

Page 19

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10. Learning plan

Analyzes the input signal to the meter and

automatically detects all channels.
This feature automatically identifies the channels

as either analog or digital and performs

measurements on each.
A bar graph is displayed with the height

representing the power for digital channels and the

level of the video carrier for the analog channels.
The measurements made for analog channels are

video carrier level and V/A. For digital channels the

measurements are power and C/N.
The analog channels will have an extra, smaller

white bar indicating the level of the audio carrier.

10.1. Main window

Below is a capture of a Learning Plan window with

a brief explanation of its features:

List of measurements

with pass/fail indicators

Bar graph representing

found channels

Color according to

checkmarks

Indicates that the

scan is finished.

Press

to save

the plan

Selected channel

Change using

11. Ingress Scan

Help identify reverse path problems before your

customers are affected.
Poorly shielded coaxial cable and faulty

terminations are important sources of ingress

noise which can easily add up in the return due to

the large number of subscriber-generated signals

that are sent back to the headend.
The combined and amplified interference is often

responsible for service disruption, so having a

good reverse path ingress scan tool is a must.

11.1. Main window

Below is a capture of an Ingress Scan window with

a brief explanation of its features:

Level of the

selected

frequency

Yellow mark:

indicates

the selected

frequency in

the spectrum

Red line:

indicates

the current

maximun

level

Blue graph:

max-hold

White graph:

real-time

Green graph:

min-hold

Selected frequency

Change using

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