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User Manual
Rev. 1.0 - 29/11/12
TEX30/50/100/150/300LCD
ELETTRONICA
Input sensitivity:
Input
Figure 6.2 Trimmer
Sensitivity
Notes
SCA1/
RDS
[13]
[16]
- 8 ÷ +13 dBu
SCA2
[28]
[29]
- 8 ÷ +13 dBu
Input level for 7,5 kHz overall deviation
(- 20 dB)
MPX
[14]
[15]
-13 ÷ +13 dBu
Left/
Mono
[31]
[30]
-13 ÷ +13 dBu
Right
[18]
[17]
-13 ÷ +13 dBu
Input level for 75 kHz overall deviation
(0 dB)
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.
• Preemphasis:
ON
1
2
3
4
50
m
s
ON
1
2
3
4
75
m
s
• L and R (XLR type) input impedance:
Switch 1: R XLR input impedance, ON = 600
W
, OFF = 10 k
W
Switch 2: L XLR input impedance, ON = 600
W
, OFF = 10 k
W
• MPX input operation mode/impedance:
Switch 1: Mode of operation ON = Mono, OFF = Stereo
Switch 2: MPX input impedance, ON = 50
W
, OFF = 10 k
W
5.3 Operation
NOTE: For better clarity, only the typical screens of
TEX300LCD
are reported
below.
TEX30/50/100/150LCD
screens look the same except that full scale
values are different.
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 exciter is delivering output
power.
O
N
1
2
O
N
1
2
