Month: December 2012

Radio Interferometer: status update

As you probably do not know, I’m currently trying to build a semi-digital radio interferometer at 408MHz, for astronomy. I played around a bit with patch antennas, and did some very basic “interferometry” tests with them. Some extremely bad tinfoil patch antennas being used for “interferometry” Basic idea of how this interferometer could work The plan for this telescope goes something like this: There’s an arbitrary number of antennas (the […]

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usbtmc on newer kernels

Just a quick note, if you want to use usbtmc (tmc is a protocol to control measurement devices remotely), the version in the linux kernel doesn’t really seem to work. There’s one from Agilent which works fine, the installation procedure is described here. However it doesn’t compile on newer kernels unless you do these changes: After that, it works just fine:  # cat /dev/usbtmc0 Minor Number Manufacturer Product Serial […]

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