EuroTel ETL0W474G, Руководство по эксплуатации и техническому обслуживанию

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ETL0W474G Rev. 004
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2 ) 2 )
2 ) ETL0W474G: changing the M.L.C. Nominal value
ETL0W474G: changing the M.L.C. Nominal value ETL0W474G: changing the M.L.C. Nominal value
ETL0W474G: changing the M.L.C. Nominal value
This function changes the value of the input electronic attenuator in order to equalize the gain of the This function changes the value of the input electronic attenuator in order to equalize the gain of the This function changes the value of the input electronic attenuator in order to equalize the gain of the This function changes the value of the input electronic attenuator in order to equalize the gain of the
single amplifier modules of the whole system.
single amplifier modules of the whole system. single amplifier modules of the whole system. single amplifier modules of the whole system.
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This setting must be done with the complete amplifier system working.
•
Press the pushbutton SELECT to enter the menu, then push SELECT again several times, until you
reach the menu “
MLC Nominal value MLC Nominal value MLC Nominal value MLC Nominal value.”
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Set the new MLC Nominal value by means of the push buttons “+
+ +
+” and “----“, store the new value
and wait until the display automatically exits the menu.
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The following step by step example shows how to change the output power from 1200W to
1000W.
Set the display to show the following quantities:
Upper row FWD peak = 1200 W
Lower row RFL peak = 3 W
Repeatedly push SELECT, until the display shows:
Upper row MLC Nominal val
Lower row < > enter
Push-buttons PREV SELECT ~ ~
Push right button: ~ to enter this menu. The display shows:
Upper row Pk = 1200W MLC -20%
Lower row X stored - +
Push-buttons PREV SELECT ~ ~
Use the push buttons “+
+ +
+” and “----“ to bring the RF output Peak power to 1000 W, then push SELECT:
Upper row Pk = 1000W MLC -40%
Lower row X stored - +
Push-buttons PREV SELECT ~ ~
Wait for a few seconds, until the display automatically reverts to the initial condition:
Upper row FWD peak = 1000 W
Lower row RFL peak = 3 W
Page 22 CMAN0W474G Oct 2013