Funcube Dongle source block. More...
#include <source_c.h>
Public Types | |
| typedef boost::shared_ptr < source_c > | sptr |
Public Member Functions | |
| virtual void | set_freq (int freq)=0 |
| Set frequency with Hz resolution. | |
| virtual void | set_freq (float freq)=0 |
| Set frequency with Hz resolution. | |
| virtual void | set_freq_khz (int freq)=0 |
| Set frequency with kHz resolution. | |
| virtual void | set_lna_gain (float gain)=0 |
| Set LNA gain. | |
| virtual void | set_mixer_gain (float gain)=0 |
| Set mixer gain. | |
| virtual void | set_freq_corr (int ppm)=0 |
| Set new frequency correction. | |
| virtual void | set_dc_corr (double _dci, double _dcq)=0 |
| Set DC offset correction. | |
| virtual void | set_iq_corr (double _gain, double _phase)=0 |
| Set IQ phase and gain balance. | |
Static Public Member Functions | |
| static sptr | make (const std::string device_name="") |
| Return a shared_ptr to a new instance of fcd_source_c. | |
Detailed Description
Funcube Dongle source block.
This class provides a Funcube Dongle soure block by wrapping the USB audio interface and the USB HID control interface of the Funcube Dongle into one convenient source block.
The Funcube Dongle needs to have firmware 18f or later for the control interface to work properly. As of early 2011, FCDs still come with firmware 18b. You can use qthid 2.2 (not 3) to upgrade the firmware: http://qthid.sf.net
Member Typedef Documentation
Member Function Documentation
| static sptr gr::fcd::source_c::make | ( | const std::string | device_name = "" | ) | [static] |
Return a shared_ptr to a new instance of fcd_source_c.
This is effectively the public constructor. To avoid accidental use of raw pointers, fcd_source_c's constructor is private. fcd_make_source_c is the public interface for creating new instances.
| virtual void gr::fcd::source_c::set_dc_corr | ( | double | _dci, |
| double | _dcq | ||
| ) | [pure virtual] |
Set DC offset correction.
- Parameters:
-
_dci DC correction for I component (-1.0 to 1.0) _dcq DC correction for Q component (-1.0 to 1.0)
Set DC offset correction in the device. Default is 0.0.
| virtual void gr::fcd::source_c::set_freq | ( | int | freq | ) | [pure virtual] |
Set frequency with Hz resolution.
- Parameters:
-
freq The frequency in Hz
Set the frequency of the Funcube Dongle with 1 Hz resolution applying the frequency correction set by set_freq_corr().
- See also:
- set_freq_khz()
| virtual void gr::fcd::source_c::set_freq | ( | float | freq | ) | [pure virtual] |
Set frequency with Hz resolution.
- Parameters:
-
freq The frequency in Hz
This is a convenience function that uses float parameter in order to allow using engineering notation in GRC.
- See also:
- set_freq_khz()
| virtual void gr::fcd::source_c::set_freq_corr | ( | int | ppm | ) | [pure virtual] |
Set new frequency correction.
- Parameters:
-
ppm The new frequency correction in parts per million
Version 1.1 FCDs (S/N 810 or later) need a correction of -12 ppm. Earlier FCDs need roughly -120 ppm (default for gr-fcd).
| virtual void gr::fcd::source_c::set_freq_khz | ( | int | freq | ) | [pure virtual] |
Set frequency with kHz resolution.
- Parameters:
-
freq The frequency in kHz
Sets the frequency of the Funcube Dongle with 1 kHz resolution applying the frequency correction set by set_freq_corr().
- See also:
- set_freq()
| virtual void gr::fcd::source_c::set_iq_corr | ( | double | _gain, |
| double | _phase | ||
| ) | [pure virtual] |
Set IQ phase and gain balance.
- Parameters:
-
_gain The gain correction (-1.0 to 1.0) _phase The phase correction (-1.0 to 1.0)
Set IQ phase and gain balance in the device. The default values are 0.0 for phase and 1.0 for gain.
| virtual void gr::fcd::source_c::set_lna_gain | ( | float | gain | ) | [pure virtual] |
Set LNA gain.
- Parameters:
-
gain The new gain in dB.
Set the LNA gain in the FCD. Valid range is -5 to 30. Although the LNA gain in the FCD takes enumerated values corresponding to 2.5 dB steps, you can can call this method with any float value and it will be rounded to the nearest valid value.
By default the LNA gain is set to 20 dB and this is a good value for most cases. In noisy areas you may try to reduce the gain.
| virtual void gr::fcd::source_c::set_mixer_gain | ( | float | gain | ) | [pure virtual] |
Set mixer gain.
- Parameters:
-
gain The new gain in dB.
Set the mixer gain in the FCD. Valid values are +4 and +12 dB.
By default the mixer gain is set to +12 dB and this is a good value for most cases. In noisy areas you may try to reduce the gain.
The documentation for this class was generated from the following file:
