kopia lustrzana https://github.com/jamescoxon/dl-fldigi
rodzic
2b57556899
commit
177a8f1f1c
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@ -65,7 +65,9 @@ struct TRACEPAIR {
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TRACEPAIR tracepair(45, 352);
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bool xmt_filter = true;
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// enable to limit within band signal sidebands
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// not really needed
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static bool xmt_filter = false;
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//=============================================================================
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char mfskmsg[80];
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@ -79,11 +81,14 @@ void mfsk::tx_init(SoundBase *sc)
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txstate = TX_STATE_PREAMBLE;
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bitstate = 0;
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double bw2 = (numtones + 1) * samplerate / symlen / 2.0;
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double flo = (get_txfreq_woffset() - bw2) / samplerate;
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if (flo <= 0) flo = 0;
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double fhi = (get_txfreq_woffset() + bw2) / samplerate;
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xmtfilt->init_bandpass (127, 1, flo, fhi);
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double factor = 1.5;
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double bw2 = factor*(numtones + 1) * samplerate / symlen / 2.0;
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double flo = (get_txfreq_woffset() - bw2);// / samplerate;
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if (flo <= 100) flo = 100;
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double fhi = (get_txfreq_woffset() + bw2);// / samplerate;
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if (fhi >= samplerate/2 - 100) fhi = samplerate/2 - 100;
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xmtfilt->init_bandpass (255, 1, flo/samplerate, fhi/samplerate);
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videoText();
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}
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@ -1041,9 +1046,29 @@ void mfsk::clearbits()
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}
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}
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int mfsk::tx_process()
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{
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// filter test set to 1
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#if 0
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double *ptr;
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double f;
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char msg[100];
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for (int i = 100; i < 3900; i++) {
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ptr = outbuf;
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f = 1.0 * i;
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snprintf(msg, sizeof(msg), "freq: %.0f", f);
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put_status(msg);
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for (int j = 0; j < 32; j++) {
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*ptr++ = cos(phaseacc);
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phaseacc += TWOPI * f / samplerate;
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if (phaseacc > TWOPI) phaseacc -= TWOPI;
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}
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transmit (outbuf, 32);
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}
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return -1;
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#endif
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int xmtbyte;
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switch (txstate) {
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