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User Manual
Rev. 1.0 - 29/11/16
BLUES30/50NV
ELETTRONICA
Input sensitivity:
Input
Figure 6.2 Trimmer
Sensitivity
Notes
SCA1
[14]
[15]
- 8 ÷ +13 dBu Input level for 7,5 kHz overall deviation
(- 20 dB)
SCA2
[12]
[13]
- 8 ÷ +13 dBu
MPX
[16]
[17]
-13 ÷ +13 dBu
Input level for 75 kHz overall deviation
(0 dB)
Left/
Mono
[18]
[19]
-13 ÷ +13 dBu
Right
[21]
[20]
-13 ÷ +13 dBu
AES/EBU
[23]
[22] e [24] -13 ÷ +13 dBu
When setting input sensitivity, please consider that the default menu reports
instantaneous modulation level and an indicator provides a 75 kHz reading. To
ensure correct adjustment, apply a signal with the same level as user’s audio
broadcast maximum level and then adjust using the trimmer until instantaneous
deviation matches the 75 kHz reading.
To set subcarrier input levels, you may use the same procedure and option “x10”
available in the
Fnc
menu. With this option, modulation level is multiplied by a factor
of 10, which means that default menu bar meter reflects a 7.5 kHz deviation.
A special menu with separate indications of Left and Right channel levels and
relating indicators of nominal levels for maximum deviation (75 kHz) is provided.
The settings of pre-emphasis, the impedance inputs of L & R, MPX and AES/EBU,
and the operation mode of the machine are operation that you can perform through
the
Set
menu.
5.3 Operation
1) Power on the exciter and ensure that the
ON
light turns on. Equipment name
should appear briefly on the display, quickly followed by modulation and forward
power readings (Menu 1), provided that the transmitter is delivering output
power.
Menu 1: x10 is Off Menu 1: x10 is On
NOTE: the indication
aMod
identifies that the audio input is set to
Analogue
;
the indication
dMod
identifies that the audio input is
Digital
.
NOTE:
xMod
identifies that the modulation display mode is selected in
x10
through
Fnc menu.
