Broadcast Tools SS 2.1/Terminal III Uživatelský manuál stáhnout pdf (Strana 41)

Section 3: Installation 3-5

Moseley SL9003Q 602-12016 Revision G

3.2 Preliminary Bench Tests

It is best to perform back-to-back tests of the entire system while the user has both

Transmitter and Receiver at the same location, prior to installation at the site. Digital

STL's have different parameters for system checks than analog STL's.

Back-to-back bench testing is a good way to familiarize the user with the SL9003Q

Discrete Audio and Composite systems. Also, the user will gain greater confidence in

the configuration and likely save a few trips to the transmitter if the actual

interconnecting equipment (such as the remote control equipment or stereo generator

for the composite system) can be tested at this time as well.

Figures 3-3 and 3-4 show a typical setup for bench testing a complete Discrete Audio

and Composite system respectively.

Caution

■ Always operate the transmitter terminated into a proper 50 ohm load.

■ Always attenuate the signal into the receiver to less than 3000 microvolts.

(Failure to observe the above precautions can cause the transmitter final

amplifier to be destroyed or the receiver preamplifier to be damaged)

■ Avoid excessive pressure on the audio adjustment potentiometers

located on the back panels of the audio encoder/decoder modules.

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Broadcast Tools SS 2.1/Terminal III Uživatelský manuál Strana 41