Frequency drift compensation

Upper beacon

In case of traffic via QO-100, it is necessary to compensate for the drift of the LNB in the antenna. Remote SDR makes it possible to track the high and low beacons in frequency and estimate the compensation to be made. Each time Remote SDR is launched, check the beacon setting and manually compensate if necessary by turning the mouse wheel on the numbers. Then the automatic compensation will do what is necessary.

TX Manual correction

To compensate for any delay in transmission, it is necessary to listen to its signal in return. Switch to transmission and select the Sinus 800Hz generator. Look at the spectrum of the audio channel of the receiver and adjust the “Manual correction” of the transmitter to have an audio signal close to 800 Hz. In the video below, you will find the use of the pseudo-automatic compensation system on RX and TX sides.

Frequency Drift Compensation on QO-100 – RX and TX

Adjusting Frequencies

For fine adjustment of the frequency of the receiver, the transmitter, the compensation of the receiver or the transmitter, there are different means:

  • turn the mouse wheel on the numbers
  • click on the figures to display a zoom and then turn the mouse wheel or slide your finger above the figures.

For the audio channel of the receiver you can use the left and right arrows on the keyboard. or a rotating knob on USB as described in the hardware section.

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