TEX1000-LCD
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User Manual
Rev. 1.1 - 23/06/05
5.2 Use
Energize the exciter by putting the switch found on the front panel in the "ON" position.
Enter the "Set" menu and set the desired operating frequency. See chapter 5.4 for a
description of the various menus..
By using the switches and trimmer found on the rear panel, set the characteristics
(impedance, preemphasis and, if it’s necessary, stereo/mono) and the levels of
the audio and RDS inputs (if used).
NOTE:
When the device leaves the factory, it is delivery with the output power
adjustment at minimum and in the OFF position. It is however recommended that
you always check the set level before activating power supply, especially if the
machine is used as a modulator for a power amplifier.
Set the desired power level from the predefined menu.
Activate the RF power output from the "Fnc" menu.
5.3 Settings and calibration
The only adjustments to be manually made on the
TEX1000-LCD
are those relating
to the audio operation levels and modes.
A trimmer for each one of the exciter's inputs is on the rear panel of the device.
The printing on the panel indicates which input each trimmer refers to. The
sensitivity of the various inputs can be adjusted using the trimmers within the
limits described in the following tables:
Input sensitivity in Mono condition:
Input Figure
6.2
Trimmer Sensitivity
Note
SCA1
[9]
[13]
- 8 ÷ +13 dBm
SCA2
[8]
[11]
- 8 ÷ +13 dBm
Input level for 7,5 kHz deviation (-20 dB)
MPX
[10]
[12]
-13 ÷ +13 dBm
Mono
[33]
[30]
-13 ÷ +13 dBm
Input level for 75 kHz deviation (0 dB)
Input sensitivity in Stereo condition:
Input Figure
6.3
Trimmer Sensivity
Note
RDS
[10]
[12]
-20 ÷ +13 dBm Input level for 75 kHz deviation (0 dB)
SCA1
[9]
[13]
- 8 ÷ +13 dBm
SCA2
[8]
[11]
- 8 ÷ +13 dBm
Input level for 7,5 kHz deviation (-20 dB)
Left
[33]
[30]
-13 ÷ +13 dBm
Right
[15]
[14]
-13 ÷ +13 dBm
Input level for 75 kHz deviation (0 dB)
