Des astuces avec SDR Console
- You can listen to the audio transmitted locally thanks to the Monitoring available at the bottom of the Transmit panel. Click on RX to hear the audio as it will be transmitted by your SDR transmitter. The oscilloscope or FFT analyzer allows you to control your transmission.
- If you find that the audio level is not sufficient despite the microphone’s high gain, you can add a constant gain of a few dB. In the SDR Console’s Transmit top menu, click on Options. In Audio In (Mic) choose Gains to choose a microphone boost level. Note that on this panel, you also find a way to limit the audio and RF levels by frequency band. This may be interesting if you plan to use your SDR equipment for transmission on other bands.
- Like the equalizer that exists for reception, you can “correct” the audio transmitted by your microphone using the dedicated equalizer for transmission. In the top menu Transmit, click on Options. In Audio In (Mic) choose Equalize to adjust as desired. You do not have to close this panel to hear the result of your adjustments.
- In the environment of amateur radio stations, there is often background noise from forced ventilation. SDR Console includes a digital filter that significantly reduces these types of sounds. In the SDR Console‘s Transmit top menu, click on Options. In Audio In (Mic) choose Denoiser. The attenuation level is adjustable. It is indicated that consideration should be given to using [Proc] compression to compensate for the losses induced by this filter.
- The audio processor can be switched on with the [Proc] button and its level adjusted from the Transmit panel
- SDR Console also includes a VOX detector that automatically switches on the transmission. Set the trigger threshold and the transmission hold time with both sliders. Activate the VOX with the dedicated button.
- When you switch to transmission, you can reduce the audio level of the reception. This will allow you to stay tuned while not disturbing the audio level (this is required by the satellite usage rules published by AMSAT-DL). In the top menu Transmit of SDR Console, click on Options. In Receiver Mute, check Enable and adjust the level of the reception signal as desired.
- Your SDR transmitter may not be exactly set to the frequency corresponding to the reception. To correct this, you will activate the offset function on XIT transmission. In the Receive panel of SDR Console, activate the XIT button and adjust the correction frequency until you hear your signal from the satellite in the same tone as what you generate locally.