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GNU Radio OOT module to get complex samples from an Agilent E4406A VSA
License: GNU General Public License v3.0
This project forked from f4exb/gr-e4406a
GNU Radio OOT module to get complex samples from an Agilent E4406A VSA
License: GNU General Public License v3.0
This is a GNURadio module to get complex samples from an Agilent E4406A VSA You need the libvxi11 library to be installed in your system. See: https://github.com/f4exb/libvxi11 The GNURadio block requires a recent gnuradio (>= v3.7) to be installed. Please note: prior pulling a new version from git and compiling it, please do a "make uninstall" first to properly remove the previous version. Building with cmake: git clone https://github.com/f4exb/gr-e4406a cd gr-e4406a mkdir build cd build/ cmake ../ make sudo make install sudo ldconfig See INSTALL for a more exotic cmake command involving custom locations for libvxi11 and GNURadio. You do not need to install with sudo if this is in a location your user has access to (this is my preferred solution). GNURadio blocks implemented (by GRC name): * E4406A source: Basic control and I/Q samples retrieval from an Agilent E4406A VSA over the LAN using VXI-11 protocol. See examples/qpsk.grc for an flowgraph using this block. * E4406A Remote Control Simple remote control of the E4406A mainly just to fine tune center frequency which is impossible with instrument's knob. It is a dummy source block that just output zeroes. Just connect it to a throttle block and a null sink block. See examples/remote.grc for a flowgraph using this block. * E4406A Buffered source Similar as E4406A source but buferrizes a number of times the required output block size before sending the blocks one at a time as requested by the scheduler. It implies that a communication with the E4406A is initiaed each time the buffer gets empty hence the rythm of the flow is highly discontinuous. To improve smoothness see "Double buffered pacer" next. The advantage in using this block is to have more contiguous blocks (or less discontinuities in the flow) resulting in better behaviour of the subsequent blocks. See examples/qpsk2_wx.grc for a flowgraph using this block. * Double buffered pacer Takes a large amount of data in input to serve it in smaller chunks at the output. Because GNURadio is a Thread-Per-Block scheduler the source of this block can run in parallel with it. When connected to a "E4406A source" block of a larger size than the requested block size at the output it results in a smoother flow giving a real time impression. It also retains the advantage to have more contiguous blocks (or less discontinuities in the flow). See examples/qpsk3.grc for a flowgraph using this block. See examples/README for information on the examples.
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