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

5

After a test is performed, the results

can be displayed on the SDA screen.

A PASS/FAIL indication can be set on

a variety of limits for FCC/CENELEC

or other governmentstandards, or to

system preferences. Data taken during

any automated test, or sequence

of automated tests, can be viewed

immediately with a PASS/FAIL indica-

tion for each of the limits. Specific

stored measurement resultsmay be

viewed on demand. Automated test

results can be printed directlyto a

serial printer or uploaded to a PCusing

StealthWare to store and include in

custom reports.

Data analysis with StealthWare

Any stored SDA measurement informa-

tion can be uploaded to a PCusing

StealthWare, a Microsoft

®

Windows

®

-

based data management package.

Stored sweep, scan, or spectrum

screens can be viewed on the PCand

analyzed with marker movement

and readout information in justthe

same way as on the actual instrument.

In-service carrier-to-noise

Modulation measurement

Includes NTSC, PAL, and SECAM

formats. Demodulation ofthe audio is

done for both AM and FM. FM is used

to hear audio distortion on the FM radio

channels or the sound ofthe TVprogram.

AM is used to recognize short-wave

interference signalsin the reverse band.

Extensive automated test capability

Automated tests can be scheduled to

perform either 24-hour FCC compliance

tests, or initiated immediately to log

performance atindividual nodes,

amplifiers or other testpoints. A wide

range of testscan be performed auto-

matically, including signal levels, C/N,

hum and depth of modulation. The

operator designateswhich teststo

perform on which channels. Because

these tests are nonintrusive, it is easy

to test all parameters on all channels

at any time.

A sweep graph overlay function

enables comparison of multiple RF

response variations over time. Stealth-

Ware also allows the operator to build

channel plansand edit site locations,

which can be downloaded to multiple

SDA instruments. Additionally, channel

plans can be uploaded to the PC, modi-

fied in StealthWare, and then down-

loaded backto the SDA instrument.

Upgrading the SDA-4040D to the

SDA-5000

The Acterna upgrade program is

designed to protect customers’ invest-

ment in test equipment. As system

requirements change, the SDA-4040D

can be upgraded to the SDA-5000 for

forward and reverse sweep capabilities

at any of Acterna worldwide service

centers, and modelSAM-4040D owners

can upgrade to the SDA-4040D with an

in-the-field firmware change only.

In-service “HUM” (PAL and NTSC compatible) The detailed scan graph offers user-adjustable

marker, scale reference level and tilt for maximum

signal evaluation

Depth of modulation

Limit checks can be instantly viewed after

identifying channel of interest with a marker in

Scan mode display

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