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sdrangel/plugins/samplesource/hackrfinput
History
f4exb b8623c90ce Refactoring: removed device parameter from all start() methods in sample source plugins 2017-04-14 03:40:45 +02:00
..
CMakeLists.txt HackRF Output support: created a HackRF device library for Rx/Tx common routines and structures 2017-01-07 11:24:09 +01:00
hackrfinput.cpp Refactoring: removed device parameter from all start() methods in sample source plugins 2017-04-14 03:40:45 +02:00
hackrfinput.h Refactoring: removed device parameter from all start() methods in sample source plugins 2017-04-14 03:40:45 +02:00
hackrfinput.pro Windows build: added missing bits 2017-01-09 01:31:58 +01:00
hackrfinputgui.cpp HackRF: changed placement of input object creation in the GUI 2017-04-14 02:16:04 +02:00
hackrfinputgui.h HackRF output: continuous sample rate setting 2017-04-02 00:23:02 +02:00
hackrfinputgui.ui HackRF input: GUI updates 2017-04-02 03:42:16 +02:00
hackrfinputplugin.cpp Sample source plugins: removed useless init pure virtual method 2017-04-12 23:10:22 +02:00
hackrfinputplugin.h Tx support: interim state (1) 2016-12-29 12:41:10 +01:00
hackrfinputsettings.cpp HackRF output: continuous sample rate setting 2017-04-02 00:23:02 +02:00
hackrfinputsettings.h HackRF output: continuous sample rate setting 2017-04-02 00:23:02 +02:00
hackrfinputthread.cpp HackRF: Rx/Tx opem/close new style 2017-04-14 01:41:02 +02:00
hackrfinputthread.h HackRF input plugin: pass thread pointer in the callback instead of using a static variable 2017-01-08 10:44:38 +01:00
readme.md Continuous sample rate setting: updated related plugins documentation 2017-04-09 20:30:01 +02:00

readme.md

HackRF input plugin

Introduction

This intput sample source plugin gets its samples from a HackRF device.

Build

The plugin will be built only if the HackRF host library is installed in your system. If you build it from source and install it in a custom location say: /opt/install/libhackrf you will have to add -DLIBHACKRF_INCLUDE_DIR=/opt/install/libhackrf/include -DLIBHACKRF_LIBRARIES=/opt/install/libhackrf/lib/libhackrf.so to the cmake command line.

The HackRF Host library is also provided by many Linux distributions and is built in the SDRangel binary releases.

Interface

HackRF input plugin GUI

1: Common stream parameters

SDR Daemon FEC stream GUI

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
  • Red square icon: an error occured. In the case the device was accidentally disconnected you may click on the icon, plug back in and start again.

Please note that HackRF is a half duplex device so if you have the Tx open in another tab you have to stop it first before starting the Rx for it to work properly. In a similar manner you should stop the Rx before resuming the Tx.

The settings on Tx or Rx tab are reapplied on start so provided the half duplex is handled correctly as stated above these settings can be considered independent.

1.3: Record

Record baseband I/Q stream toggle button

1.4: Baseband 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

Use this slider to adjust LO correction in ppm. It can be varied from -10.0 to 10.0 in 0.1 steps and is applied in software.

3: Auto correction options

These buttons control the local DSP auto correction options:

  • DC: auto remove DC component
  • IQ: auto make I/Q balance

4: Bias tee

Use this checkbox to toggle the +5V power supply on the antenna connector.

5:RF amp

Use this checkbox to toggle the extra low noise amplifier (LNA). This gives an additional gain of 14 dB.

6: Device sample rate

This is the HackRF device ADC sample rate in S/s.

Use the wheels to adjust the sample rate. Left click on a digit sets the cursor position at this digit. Right click on a digit sets all digits on the right to zero. This effectively floors value at the digit position.

7: Rx filter bandwidth

This is the Rx filter bandwidth in kHz. Possible values are: 1750, 2500, 3500, 5000, 5500, 6000, 7000, 8000, 9000, 10000, 12000, 14000, 15000, 20000, 24000, 28000 kHz.

8: Decimation factor

The device stream from the HackRF is decimated to obtain the baseband stream. Possible values are:

  • 1: no decimation
  • 2: divide devcie stream sample rate by 2
  • 4: divide devcie stream sample rate by 4
  • 8: divide devcie stream sample rate by 8
  • 16: divide devcie stream sample rate by 16
  • 32: divide devcie stream sample rate by 32

10: Internal LNA gain

The LNA gain can be adjusted from 0 dB to 40 dB in 8 dB steps.

11: Rx variable gain amplifier gain

The Rx VGA gain can be adjusted from 0 dB to 62 dB in 2 dB steps.