R.V.R. Elettronica TEX1000LIGHT, Руководство пользователя

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12
/ 30 User Manual
Rev. 1.1 - 06/07/20
TEX1000LIGHT
5.2.5 Changing the
Power Good
alarm threshold
Change Forward Power Good alarm setting PgD from the Fnc menu as desired
(factory setting is 50%).
Please read section 5.4.1 for more details.
5.2.6 Setting equipment I
2
C address
Change the
IIC
address in the
MIX
(Miscellaneous) menu as desired (factory
setting is 01).
Please read section 5.4.1 for more details.
5.2.7 Adjustments and calibration
The only manual adjustments are the level adjustments and the audio mode
adjustment.
The rear panel holds the trimmers for all exciter inputs. Trimmer identification is
printed on the rear panel. Input sensitivity can be set within the limits set out in
the tables below through the trimmers:
Input sensitivity in Mono mode:
Input Figure 6.2 Trimmer Sensitivity Note
SCA1 [12] [16] - 8 ÷ +13 dBm Input level for 7,5 kHz deviation (-20 dB)
SCA2 [11] [14] - 8 ÷ +13 dBm
MPX [13] [15] -13 ÷ +13 dBm Input level for 75 kHz deviation (0 dB)
Mono [38] [37] -13 ÷ +13 dBm
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.