Viavi CT-X Bedienungsanleitung

Determine Estimated CT-4 and CT-X Levels

This procedure is not to be used to set or adjust the CT-4/CT-X levels but to verify if the

measured level is within the appropriate limits and determine the CT-4/CT-X needs to be

adjusted.

Note: We will only look at the two typical frequencies in this document.

Prerequisite

Please Review CT-4 Getting Started Guide

Please Review CT-X Getting Started Guide

System Requirements

ONX 620 or ONX630

Any forward test points

Quick Review

CT-4 has a fixed injection of 138 MHz and 612 MHz See Figure 1

Figure 1: Typical injection Frequencies

Procedure

Measure adjacent QAM Channels to 612 MHz and 138 MHz

•Ch. 88 or 89, and 16 or 17 respectively

•Log channel power levels for each

•Measure the peak value of the dual CW’s combined (Not in Low-Res mode)

•612 MHz and 138 MHz

•Log peak value of both frequencies

CT-4 and CT-X Quick Verify

2

Proper Levels, no action required

•Ch 88 or 89 power level -24 dBc to -25 dBc = acceptable level

•Ch 16 or 17 power level -24 dBc to -25 dBc = acceptable level

If any of the above is not true, schedule headend visit

Connect signal to port 1 of the ONX

CATV Home Screen

select

“Channel Check”

Figure 2: Channel Check

Channel Check Setup

select

“Start”

Figure 2: Channel Check Start

3

ONX builds channel plan and provides

measurement for all channels in the plan

Figure 2: Channel Check Start

Note the Power Level of the selected Channels

4

Downstream Spectrum Setup (612 MHz)

Downstream Spectrum Setup (612 MHz) Continued

5

Downstream Spectrum Setup (138 MHz)

Downstream Spectrum Setup (138 MHz) Continued

6

Measured Results

(612 MHz) (138Mhz)

Note: These are approximate levels to verify leakage levels are within the expected

limits. If levels are off by 3 dB too low, then leakage readings will be cut by ½.

Example:

A 20 microvolt leak would by only 10 microvolts.

Andere Handbücher für CT-X

1

Dieses Handbuch passt für folgende Modelle

1

Inhaltsverzeichnis

Andere Viavi Prüfgeräte Handbücher

Viavi

Viavi 7200 Series Bedienungsanleitung

Viavi

Viavi E4100 Series Stücklistenhandbuch

Viavi

Viavi OneExpert ONX CATV 620 Bedienungsanleitung

Viavi

Viavi SmartOTDR 100 Bedienungsanleitung

Viavi

Viavi T-BERD/MTS 4000 V2 Bedienungsanleitung

Viavi

Viavi 8100 V2 Series Bedienungsanleitung

Viavi

Viavi OneAdvisor 1000 Bedienungsanleitung

Viavi

Viavi SmartClass Fiber OLTS-85 Bedienungsanleitung

Viavi

Viavi OneAdvisor 1000 Bedienungsanleitung

Viavi

Viavi OneAdvisor ONA-800 Stücklistenhandbuch

Viavi

Viavi NSC-100 Bedienungsanleitung

Viavi

Viavi T-BERD/MTS-4000 v2 Stücklistenhandbuch

Viavi

Viavi AVX-10K Bedienungsanleitung

Viavi

Viavi T-BERD/MTS-2000 Stücklistenhandbuch

Viavi

Viavi 3550 Bedienungsanleitung

Viavi

Viavi FCOMP/-PRO T-BERD/MTS-2000V2 Bedienungsanleitung

Viavi

Viavi T-BERD 5800 Bedienungsanleitung

Viavi

Viavi SmartClass OLP-85 Series Bedienungsanleitung

Viavi

Viavi E4100 Series Stücklistenhandbuch

Viavi

Viavi 3900 Series Bedienungsanleitung

Viavi

Viavi OneExpert DSL Bedienungsanleitung

Viavi

Viavi OBS-500 Bedienungsanleitung

Viavi

Viavi T-BERD 5800 Stücklistenhandbuch

Viavi

Viavi T-BERD/MTS 2000 Bedienungsanleitung

Beliebte Prüfgeräte Handbücher anderer Marken

SMART

SMART KANAAD SBT XTREME 3G Series Bedienungsanleitung

Agilent Technologies

Agilent Technologies BERT Serial Bedienungsanleitung

Agilent Technologies

Agilent Technologies N3280A Bedienungsanleitung

Vernier

Vernier Go Direct Voltage Bedienungsanleitung

Lifeloc

Lifeloc R.A.D.A.R. Bedienungsanleitung

Fluke

Fluke T5-600 Bedienungs- und Montageanleitung

Mercury

Mercury TSL01 Bedienungsanleitung

MAHA

MAHA MBT Series Bedienungsanleitung

Fuji Electric

Fuji Electric P-61 Bedienungsanleitung

ETC

ETC SealerAtor Bedienungsanleitung

Skyfine

Skyfine ETHYWAY V2 Bedienungsanleitung

Appion

Appion G5 Twin Bedienungsanleitung

PCB Piezotronics

PCB Piezotronics 8159-0112A Bedienungsanleitung

BW Technologies

BW Technologies MicroDock II Bedienungsanleitung

Sun Nuclear

Sun Nuclear 1027 Bedienungsanleitung

Biomark

Biomark HPR LITE READER Bedienungsanleitung

Hioki

Hioki 3169-20 Bedienungsanleitung

Ashcroft

Ashcroft ATE-100 Bedienungsanleitung