R.V.R. Elettronica PTX30 UHT/S3, Руководство пользователя

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PTX30 UHT /S3
13 / 36 User Manual Rev. 5.0 - 10/12/2001
Operating with internal stereo coder
Insert the pilot tone confirmed by the corresponding led, than insert the Stereo
function confirmed by the corresponding led.
Select LEFT/RIGHT audio input sensitivity with regard to the level supplied from
the source used and onnect the source to the “LEFT/RIGHT” inputs (these inputs
are balanced).
Verify on the meter that the L/R audio levels are those foreseen selecting the
desired input with the control.
It is possible to read the rear modulation level on the deviation meter.
External stereo source connection
Connect the output of the stereo source to the MPX input, see figure 5.3.
figura 5.3
Position on 10%. Allow the stereo coder to generate only the 19 Khz sub-carrier
(No signals on the right and left inputs of the coder).
NOTE: Now the deviation meter has a "x 10" sensitivity, so 10KHz=1KHz and so
on.
Set the output level of the coder to obtain the correct injection level, verifiable with
the bar graph indicator.
Now position on 100%. Connect the audio signals to the inputs of the coder and
set the levels to switch (with both channels active) the first red led on MAX.
PEAK=75KHz.
Monaural (MONO) operation
Connect the signal source (mixer,receiver compressor) to the Mono input, see
figure 5.4. This input is balanced.
figure 5.4