SSII - SBAS versus N-Models

If an SSII N-model is loaded, SBAS capability is taken away but the 2 channels that would normally be used for SBAS are now used for GPS. So 12 channels for tracking GPS. In the SBAS capable models, the 2 channels are dedicated to SBAS. So 10 Channels for GPS and 2 channels for SBAS If you were to disable SBAS in the SBAS Capable model, those two channels would be set to idle and not used for GPS. So 10 channels GPS only A list of models is available in appendix A of the SSII firmware reference manual.