void initReceiveChannel() {
setRXMode(modeAM);
SetRXABandpassFreqs(CHANNEL_RX, (double)filterLow, (double)filterHigh);
setFilter(filterLow, filterHigh);
setAGCMode(AGC_MEDIUM);
SetRXAAMDSBMode(CHANNEL_RX, 0);
SetRXAShiftRun(CHANNEL_RX, 0);
SetRXAEMNRPosition(CHANNEL_RX, nr_agc);
SetRXAEMNRgainMethod(CHANNEL_RX, nr2_gain_method);
SetRXAEMNRnpeMethod(CHANNEL_RX, nr2_npe_method);
SetRXAEMNRRun(CHANNEL_RX, nr2);
SetRXAEMNRaeRun(CHANNEL_RX, nr2_ae);
SetRXAANRVals(CHANNEL_RX, 64, 16, 16e-4, 10e-7); // defaults
SetRXAANRRun(CHANNEL_RX, nr);
SetRXAANFRun(CHANNEL_RX, anf);
SetRXASNBARun(CHANNEL_RX, snb);
SetRXAPanelGain1(CHANNEL_RX, 0.9);//volume
SetRXAShiftFreq(CHANNEL_RX, 0.0);
SetRXAShiftRun(CHANNEL_RX, 0);
SetChannelState(CHANNEL_RX,1,0);
}
static void setupRX(int rx) {
setRXMode(rx,mode);
SetRXABandpassFreqs(rx, (double)filterLow, (double)filterHigh);
SetRXAAGCMode(rx, agc);
SetRXAAGCTop(rx,agc_gain);
SetRXAAMDSBMode(rx, 0);
SetRXAShiftRun(rx, 0);
SetRXAEMNRPosition(rx, nr_agc);
SetRXAEMNRgainMethod(rx, nr2_gain_method);
SetRXAEMNRnpeMethod(rx, nr2_npe_method);
SetRXAEMNRRun(rx, nr2);
SetRXAEMNRaeRun(rx, nr2_ae);
SetRXAANRVals(rx, 64, 16, 16e-4, 10e-7); // defaults
SetRXAANRRun(rx, nr);
SetRXAANFRun(rx, anf);
SetRXASNBARun(rx, snb);
}
void setFilter(int low,int high) {
fprintf(stderr,"setFilter: %d %d\n",low,high);
if(mode==modeCWL) {
filterLow=-cwPitch-low;
filterHigh=-cwPitch+high;
} else if(mode==modeCWU) {
filterLow=cwPitch-low;
filterHigh=cwPitch+high;
} else {
filterLow=low;
filterHigh=high;
}
double fl=filterLow+ddsOffset;
double fh=filterHigh+ddsOffset;
fprintf(stderr,"setFilter: fl=%f fh=%f\n",fl,fh);
RXANBPSetFreqs(receiver,(double)filterLow,(double)filterHigh);
SetRXABandpassFreqs(receiver, fl,fh);
SetRXASNBAOutputBandwidth(receiver, (double)filterLow, (double)filterHigh);
SetTXABandpassFreqs(CHANNEL_TX, fl,fh);
}