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Transverter frequency shift logic. Implemented it for RTLSDR

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This commit is contained in:
f4exb
2017-09-23 19:15:56 +02:00
parent 83f9705e96
commit 43a1e0e14b
10 changed files with 97 additions and 22 deletions
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plugins/samplesource/rtlsdr/rtlsdrgui.cpp
+32 -9
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@@ -28,6 +28,7 @@
#include "dsp/dspengine.h"
#include "dsp/dspcommands.h"
RTLSDRGui::RTLSDRGui(DeviceSourceAPI *deviceAPI, QWidget* parent) :
QWidget(parent),
ui(new Ui::RTLSDRGui),
@@ -40,10 +41,10 @@ RTLSDRGui::RTLSDRGui(DeviceSourceAPI *deviceAPI, QWidget* parent) :
ui->setupUi(this);
ui->centerFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold));
ui->centerFrequency->setValueRange(7, 24000U, 1900000U);
updateFrequencyLimits();
ui->sampleRate->setColorMapper(ColorMapper(ColorMapper::GrayGreenYellow));
ui->sampleRate->setValueRange(7, 950000U, 2400000U);
ui->sampleRate->setValueRange(7, RTLSDRInput::sampleRateHighRangeMin, RTLSDRInput::sampleRateHighRangeMax);
connect(&m_updateTimer, SIGNAL(timeout()), this, SLOT(updateHardware()));
connect(&m_statusTimer, SIGNAL(timeout()), this, SLOT(updateStatus()));
@@ -175,6 +176,18 @@ void RTLSDRGui::updateSampleRateAndFrequency()
ui->deviceRateText->setText(tr("%1k").arg(QString::number(m_sampleRate / 1000.0f, 'g', 5)));
}
void RTLSDRGui::updateFrequencyLimits()
{
// values in kHz
qint64 minLimit = (m_settings.m_noModMode ? RTLSDRInput::frequencyLowRangeMin : RTLSDRInput::frequencyHighRangeMin) + m_settings.m_transverterDeltaFrequency/1000;
qint64 maxLimit = (m_settings.m_noModMode ? RTLSDRInput::frequencyLowRangeMax : RTLSDRInput::frequencyHighRangeMax) + m_settings.m_transverterDeltaFrequency/1000;
minLimit = minLimit < 0 ? 0 : minLimit > 9999999 ? 9999999 : minLimit;
maxLimit = maxLimit < 0 ? 0 : maxLimit > 9999999 ? 9999999 : maxLimit;
ui->centerFrequency->setValueRange(7, minLimit, maxLimit);
}
void RTLSDRGui::displayGains()
{
if (m_gains.size() > 0)
@@ -214,6 +227,9 @@ void RTLSDRGui::displaySettings()
ui->ppmText->setText(tr("%1").arg(m_settings.m_loPpmCorrection));
ui->decim->setCurrentIndex(m_settings.m_log2Decim);
ui->fcPos->setCurrentIndex((int) m_settings.m_fcPos);
ui->checkBox->setChecked(m_settings.m_noModMode);
ui->transverter->setDeltaFrequency(m_settings.m_transverterDeltaFrequency);
ui->transverter->setChecked(m_settings.m_transverterMode);
}
void RTLSDRGui::sendSettings()
@@ -316,6 +332,14 @@ void RTLSDRGui::on_record_toggled(bool checked)
m_sampleSource->getInputMessageQueue()->push(message);
}
void RTLSDRGui::on_transverter_toggled(bool checked)
{
m_settings.m_transverterMode = checked;
m_settings.m_transverterDeltaFrequency = checked ? ui->transverter->getDeltaFrequency() : 0;
updateFrequencyLimits();
sendSettings();
}
void RTLSDRGui::updateHardware()
{
RTLSDRInput::MsgConfigureRTLSDR* message = RTLSDRInput::MsgConfigureRTLSDR::create(m_settings);
@@ -356,18 +380,17 @@ void RTLSDRGui::on_checkBox_stateChanged(int state)
{
if (state == Qt::Checked)
{
// Direct Modes: 0: off, 1: I, 2: Q, 3: NoMod.
((RTLSDRInput*)m_sampleSource)->set_ds_mode(3);
ui->gain->setEnabled(false);
ui->centerFrequency->setValueRange(7, 1000U, 275000U);
m_settings.m_noModMode = true;
updateFrequencyLimits();
ui->centerFrequency->setValue(7000);
m_settings.m_centerFrequency = 7000 * 1000;
}
else
{
((RTLSDRInput*)m_sampleSource)->set_ds_mode(0);
ui->gain->setEnabled(true);
ui->centerFrequency->setValueRange(7, 28500U, 1700000U);
m_settings.m_noModMode = false;
updateFrequencyLimits();
ui->centerFrequency->setValue(434000);
ui->gain->setValue(0);
m_settings.m_centerFrequency = 435000 * 1000;
@@ -391,9 +414,9 @@ void RTLSDRGui::on_sampleRate_changed(quint64 value)
void RTLSDRGui::on_lowSampleRate_toggled(bool checked)
{
if (checked) {
ui->sampleRate->setValueRange(7, 230000U, 300000U);
ui->sampleRate->setValueRange(7, RTLSDRInput::sampleRateLowRangeMin, RTLSDRInput::sampleRateLowRangeMax);
} else {
ui->sampleRate->setValueRange(7, 950000U, 2400000U);
ui->sampleRate->setValueRange(7, RTLSDRInput::sampleRateHighRangeMin, RTLSDRInput::sampleRateHighRangeMax);
}
m_settings.m_devSampleRate = ui->sampleRate->getValueNew();