Wavetek 3HRV Manual do Utilizador descarregar pdf (Página 5)

! The Navigator user interface, common on

all WWG meters.

Comprehensive Testing

The SDA provides an extensive set of sig-

nal analysis features designed for proving,

and improving, network quality. All tests

utilize a practical user interface, normally

requiring only a one-button keystroke.

Level Measurement. The SDA

instruments provide a compre-

hensive single-channel display

with tuned channel, video frequency and

level, audio frequency and level, and the

difference between video and audio carrier

levels.

! The single-channel level display shows

both video and audio levels (either single or

dual sound/NICAM) and the difference

between the two.

! Digital channel average power measurements

can be made using the digiCheck™ feature.

Making accurate digital average power

measurements are addressed with the

digiCheck™ measurement function. The

digiCheck™ feature is compatible with

most "non-bursty" digital modulations in

use today (i.e., 16, 32, 64, and 256 QAM,

QPR, QPSK, VSB, CAP16, etc.).

Analog and Digital Signal Limits.

Analog signal threshold limits

have always been a technician’s

favorite feature of WWG instruments.

Automatic limit checks provide a quick go/no-

go status for audio and video levels. The SDA

series extends this capability with a dedicated

digital limit set that can be applied exclusive-

ly to the forward digital carriers defined in a

channel plan. By assigning separate analog

and digital limits, test time is reduced since

no calculation is necessary to determine if

analog and digital level relationships are with-

in system specifications. Analog and digital

limit capability is available in both the scan

and autotest modes (available July 2000).

Tilt Measurement. Tilt is the

easiest and most efficient tool

for balancing amplifiers. For

cable plants requiring multiple tilt mea-

surements, such as comparing today’s tilt

measurement with a historical record, and

then making an additional measurement

for a new wider channel plan, the user sim-

ply uses markers to indicate the tilt chan-

nels that define the new limits.

! Tilt mode performs automatic tilt calcula-

tions between any 2 of 9 designated carriers.

The CTB/CSO mode is used for

automatically making intermod-

ulation measurements.

Scan Measurement. Scan mode

provides a quick graphical view of

the entire channel plan with bars

representing the video level for each chan-

nel. Both video and audio may be displayed.

Additional

Customer Support

Wavetek Wandel

Goltermann offers quali-

ty, cost-effective support

programs that address all

of your technical support

needs. With over 20 fully

equipped CATV accredit-

ed service centers world-

wide, WWG provides

local product mainte-

nance, calibration and

upgrades, along with

technical training services.

CarePlan

Customer

Support Package

The WWG CarePlan is a

proactive technical sup-

port program designed

to safeguard your invest-

ment throughout its

complete life-cycle.

Key benefits of the

CarePlan include:

• Cost-effective

product mainte-

nance support

• Annual calibration

certification

program

• Proactive hardware

and software

upgrades

• Technical support

Technology Training

WWG provides a compre-

hensive CATV technology

training program

designed to help you and

your teams understand

the changing needs of

today's advanced

networks. Training

seminars include:

• HFC Basics

• Understanding

Digital

• Sweep and Balance

Forward and Return

• Mastering the

Forward Path

• Mastering the

Return Path

• Sweep 101

“Bootcamp”

1 2 3 4 5 6 7 8 9 10 11 12

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