FlexRadio Systems SDR-1000 User Manual

S E T U P F O R M C H A P T E R 8
Image Reject Sub-Tab
Figure 86: Setup Form - DSP Tab, Image Reject Sub-Tab
These controls enable the user to adjust the image to minimum in order to reject the opposite sideband.
There is an automatic process for doing this on receive (signal source required). For transmit, the process is
described below.
Receive Rejection
Figure 87: Receive Rejection
Image Rejection means finding adjustments for phase angle and gain differences between the left and right
channels in your stereo card (or the in-phase (I) and quadrature (Q) signals). The algorithm that does this
assumes that the phase offset and gain difference between the I and Q channels are constant across all bands
and assumes that the audio channel is linear across the sound card bandwidth. This works extremely well in
practice.
90 FlexRadio Systems

FlexRadio Systems SDR-1000 Specifications

General

Brand	FlexRadio Systems
Model	SDR-1000
Category	Radio
Language	English