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User Manual
Rev. 1.0 - 27/10/06
TEX500-LCD & TEX1000LIGHT
Input sensitivity in Stereo mode:
Input
Figure 6.2 Trimmer
Sensitivity
Note
MPX
[12]
[14]
-20 ÷ +13 dBm Input level for 75 kHz deviation (0 dB)
SCA1
[11]
[15]
- 8 ÷ +13 dBm
SCA2
[10]
[13]
- 8 ÷ +13 dBm
Input level for 7,5 kHz deviation (-20 dB)
Left
[34]
[33]
-13 ÷ +13 dBm
Right
[17]
[16]
-13 ÷ +13 dBm
Input level for 75 kHz 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 (switch [8] Figure 6.2):
ON
1
2
3
4
50
m
s
ON
1
2
3
4
75
m
s
• L and R (XLR type) input impedance (switch [9] Figure 6.2):
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 [18] Figure 6.2):
Switch 1: Mode of operation ON = Mono, OFF = Stereo
Switch 2: MPX input impedance, ON = 50
W
, OFF = 10 k
W
O
N
1
2
O
N
1
2
