QtRadio - Operation

Connecting to a server

Tuning the radio

Fixed frequency radio

For crystal locked radios such as the softrock lite II or YU1LM sdr's It is necessary to use subRx mode. The procedure is to set vfoA to your centre frequency, usually the crystal frequency / 4 and leave it alone as changing it will affect your centre frequency. Using the button on the vfo panel or the 'Receiver' Menu / subRx choice switch on the subRx. You can now tune within the limits of the sample rate of your sound card (48, 96 or 192 KHz) with your centre frequency offset from centre by 9 KHz.

Note there is still a bug in the display where the lower 9 KHz wraps to the upper 9 KHz but the audio doesn't track the spectrum so you lose 9 KHz of possible bandwidth.

si570 tunable radio

Setting the noise floor

Calibrating the S meter

VFO and Split selection

Using RIT

Changing bands

Using Quick Memories

Using subRx

The Menu choices

Receiver

Audio

Band

Mode

Filter

Noise Reduction

AGC

Spectrum

Hardware

Bookmarks

Transmit commands

QtRadio - Operation

Contents