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Radio settings for digital modes

Most digital transmission modes require that the radio transmits the audio signal produced by the digital mode application as clean as possible, without the radio processing on altering the audio signal in any way.

To disable audio processing in a radio transceiver, all speech compression, auto-gain control and noise reduction features must be turned off.

The instructions below indicate recommended radio settings for running digital modes:

  1. Open the sidebar for radio settings in the Web Radio Control user interface

  2. Apply the following settings in the RF submenu:

    • RF POWER = 10 - 100% - many digital modes do not require using full RF power

    • RF GAIN = 100%

    • AGC = OFF, the FAST choice may also work well if the OFF choice is not available

    • PREAMP = 0db

    • ATTENUATOR = 0db

  3. Apply the following settings in the RX audio submenu:

    • NOISE BLANKER = off

    • NOISE REDUCTION = off

    • AUTO NOTCH FILTER = off

    • MANUAL NOTCH = off

  4. Apply the following settings in the TX audio submenu:

    • MICROPHONE GAIN = 50% - this may also affect transmit power, too much gain can distort the transmitted audio signal

    • SPEECH COMPRESSOR = off

    • VOX = off