12
/ 26
User Manual
Rev. 1.0 - 22/08/14
TEX1002LCD
W
) reflects actual output power reading,
which may be lower than regulated
power supply when Automatic Gain Control is running in power supply
limitation mode
(please read section 5.3 about RF power supply modulation for
more details).
Note: Output power may be set using the Pwr OFF control. In this condition, the
output power readout (
Fwd) on the display will read 0 (zero); the
SET
bar will reflect
any adjustments you make using the keys and provides a graphic indication of how
much power supply will be delivered the moment you return to
Pwr On
state.
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%).
5.2.6 Setting equipment I
2
C address
Change the
IIC
address in the
MIX
(Miscellaneous) menu as desired (factory
setting is 01).
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 transmitter 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:
Input
Figure 4.2 Trimmer
Sensitivity
Notes
SCA1/
RDS
[15]
[12]
- 8 ÷ +13 dBu Input level for 7,5 kHz overall deviation
(- 20 dB)
SCA2
[14]
[13]
- 8 ÷ +13 dBu
MPX
[31]
[30]
-13 ÷ +13 dBu
Input level for 75 kHz overall deviation
(0 dB)
Left/
Mono
[10]
[11]
-13 ÷ +13 dBu
Right
[28]
[29]
-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.
