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diff --git a/gnuradio-examples/python/apps/hf_radio/README.TXT b/gnuradio-examples/python/apps/hf_radio/README.TXT deleted file mode 100644 index 7c7edf5e0..000000000 --- a/gnuradio-examples/python/apps/hf_radio/README.TXT +++ /dev/null @@ -1,60 +0,0 @@ -# 2008-02-07 -# -# These files have not yet been update to use the new top_block/hier_block2 -# interfaces. Until someone does that, this files will no longer run. -# - - -The files in this directory implement a fairly simple HF radio that works -with the basic rx daughter board on the USRP. - -Many thanks to the Gnu Radio folks for a great new way to waste large blocks -of time in infinitely tweaking a huge number of free parameters. - -Start the receiver by running the radio.py in this directory. Or from the -Python prompt type "from radio import *" and you'll get the prompt back -with the receiver running. You can then poke around to see what's going on. - -There are two spectrum displays. One is the output of the USRP and displays -about 300KHz of bandwidth centered at the current tuning freq. The other -displays the output spectrum of the demodulator. - -The demodulator does AM demod using the complex modulus block from gr. It -does SSB demod using the frequency translating fir filter as a complex -hilbert transformer. The taps for this filter were generated using a program -called Scilab and the Scilab program in the file hfir.sci. More details in -the associated files. - -Tune the receiver using the spin buttons under the big frequency display. - -The agc block is a roll your own. The standard agc in the newer CVS updates -seems to work but doesn't seem to have adjustable time constants or provide -access to internal signal nodes which are used for the RSSI. - -The AGC authority (a sort of gain parameter) and the reference level used -in the power to dB computagion can be adjusted using the spin buttons. - -The audio bandwidth can be similarly adjusted from about 50Hz to 10KHz. - -The GUI layout was produced using wxGlade. The file radio.xml is the GUI -specification. It will produce a file called ui.py which is subclassed -by classes defined in radio.py. The ui.py is purely generated by wxGlade -all app specific code for the GUI is in radio.py. - -Most of the actual signal processing code is built up in the other included -files using the hierarchical block facilities. This organization should -make it easier to tweak to your heart's content. - -Known bugs weakness and other - -wxPython and wxGlade seem to conspire to insure that the layout can never -be exactly what you have in mind. - -Some of the controls don't behave as one might like. wx spin controls -and spin boxes only support integers so it is rather a nuisance to make -units come out nice. In the process of development I came up with a reasonable -kluge so there is a mixture of approaches. - -Enjoy. - -M. Revnell 2006-Jan-06 |