XIEGU X108G, Руководство по обслуживанию

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1) Set the receiving frequency of X108G to be 14.25000MHz, [USB] mode.
2) Open [PRE],close [ATT] and [AGC] and [SQL].
3) Connect the output port of the RF signal source to the antenna interface of the X108G;
4) Turn off the RF signal source output, adjust the S table reference voltage PotentiometerRW1, make the
-121dBm value of ADC on the screen is 2500, press the [SET] button to enter the next level signal setting.
5) Open the RF signal source, in turn, set up the signal source output signal amplitude by the each signal
intensity as displayed on a screen, and then press the [SET] button to enter the next level of signal
settings.
6) After setting all the signal levels, press the [SAVE] button to save and exit.
4.2.6 Overall gain adjustment of transmit channel
Required machines and its settings
Machine Setting specs
Digital multimeter DC voltage test
1) Set the receiving frequency of X108G to be 14.25000MHz, [CW] mode.
2) Pull out the TX signal plug of the small signal board.
3) Press the key to start the CW mode transmit.
4) Measure the voltage of the transmit gain test point TP11, and adjust the PotentiometerRW8 to make the
voltage of the test point be 2V + 0.1V.
PotentiometerRW1