Jon BenistonandClaude Opus 5
ddedd59568
QMessageBox::information() and friends build the box on the stack, parent it to the calling widget and run a nested event loop in exec(). If the parent is closed while the box is open, which the Web API can do at any time, the parent deletes the box and its children and the heap is corrupted. MessageDialog offers the same calls, but the box is heap allocated, given Qt::WA_DeleteOnClose and shown rather than exec'd, so nothing runs a nested event loop and the box owns its own lifetime. A box with the same text as one already up is raised instead of a second being created. The trade off is that information(), warning() and critical() return immediately and cannot report which button was pressed. question() takes a callback for the cases that need the answer. Converts the call sites in the device, channel and feature GUIs. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
FunCube Dongle Pro input plugin
Introduction
This input sample source plugin gets its samples from a FunCube Dongle (FCD) Pro device.
Interface
The top and bottom bars of the device window are described here
1: Common stream parameters
1.1: Frequency
This is the center frequency of reception in kHz.
1.2: Start/Stop
Device start / stop button.
- Blue triangle icon: device is ready and can be started
- Green square icon: device is running and can be stopped
- Magenta (or pink) square icon: an error occurred. In the case the device was accidentally disconnected you may click on the icon, plug back in and start again.
1.4: Stream sample rate
Baseband I/Q sample rate in kS/s. This is the device sample rate (4) divided by the decimation factor (6).
2: Local Oscillator correction
This is the correction to be applied to the local oscillator in ppm.
3: Auto correction options
These buttons control the local DSP auto correction options:
- DC: auto remove DC component
- IQ: auto make I/Q balance. The DC correction must be enabled for this to be effective.
4: Decimated bandpass center frequency position relative to the FCD Pro center frequency
- Cen: the decimation operation takes place around the FCD Pro center frequency Fs
- Inf: the decimation operation takes place around Fs - Fc.
- Sup: the decimation operation takes place around Fs + Fc.
With SR as the sample rate before decimation Fc is calculated as:
- if decimation n is 4 or lower: Fc = SR/2^(log2(n)-1). The device center frequency is on the side of the baseband. You need a RF filter bandwidth at least twice the baseband.
- if decimation n is 8 or higher: Fc = SR/n. The device center frequency is half the baseband away from the side of the baseband. You need a RF filter bandwidth at least 3 times the baseband.
5: Decimation factor
The I/Q stream from the FCD Pro ADC is downsampled by a power of two before being sent to the passband. Possible values are increasing powers of two: 1 (no decimation), 2, 4, 8, 16.
6: Transverter mode open dialog
This button opens a dialog to set the transverter mode frequency translation options. The details about this dialog can be found here
7: Set default values
Use this push button to force default reasonable values for all parameters below (8)
8: Parameters
This panel lists all parameters that are the same as in the Windows utility interface showing the block diagram of the FCD:
- LNA Enh: equivalent of the "LNA enhance" parameter
- Band: equivalent of the "Band" parameter
- Bias: equivalent of the "Bias current" parameter
- Mode: equivalent of the "IF gain mode" parameter
- LNA G: equivalent of the "LNA gain" parameter
- RF filt: equivalent of the "RF filter" parameter
- Mix G: equivalent of the "Mixer gain" parameter
- Mix filter: equivalent of the "Mixer filter" parameter
- Gain1: equivalent of the "IF gain 1" parameter
- RC filt: equivalent of the "IF RC filter" parameter
- Gain2: equivalent of the "IF gain 2" parameter
- Gain3: equivalent of the "IF gain 3" parameter
- Gain4: equivalent of the "IF gain 4" parameter
- IF filt: equivalent of the "IF filter" parameter
- Gain5: equivalent of the "IF gain 5" parameter
- Gain6: equivalent of the "IF gain 6" parameter