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Diffstat (limited to 'gnuradio-examples/python/apps/hf_explorer/README')
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diff --git a/gnuradio-examples/python/apps/hf_explorer/README b/gnuradio-examples/python/apps/hf_explorer/README deleted file mode 100644 index 5f780b3d9..000000000 --- a/gnuradio-examples/python/apps/hf_explorer/README +++ /dev/null @@ -1,48 +0,0 @@ -hfx.py is meant to be a full-featured Long Wave / Medium Wave -and Short Wave (250kHz to 30Mhz) AM and Single Sideband receiver. -It uses the USRP with a Basic RX board, and will need an -antenna and some preamps, about 30db gain will work. See the -'Help' menu or hfx_help for more info. - ----------------------------------------------------------- - -hfx2.py is a major revision built about complex fir filter -coeffecients ability and cleaner python script. Inherits -most features from hfx.py - Powermate knob supported but -not required, tooltip frequency display, single click -tuning, AGC, record to disk, play from disk and record audio. -New feature is ability to tailor the audio passband with two -sliders over the spectrum display. The sliders almost align -with the actual frequency. Preset filter settings for LSB -(-3000 to 0kHz), USB (0 to +3000kHz), CW (-400 to -800Hz) -and AM (-5kHz from carrier to +5kHz). - -AM now switches in a synchronous PLL detector with the -carriers at 7.5kHz. The PLL carrier is displayed in the -bottom display and helps show where on the upper spectrum -the demodulated signal lies. Everything gets shifted up -7.5kHz in AM, center frequency, tooltips, etc. The target -AM carrier needs to be closely tuned in, it will have a -hollow sound untill it is locked, and then the PLL carrier -in the bottom display will jump up and remain relatively -constant. There is a slider "AM sync carrier" to play with -different levels to mix with the signal for demodulation. -The filter in AM is preset to 2500/12500 (7.5kHz +/- 5kHz) -and is handy for removing adjacent channel interference. -Change AM_SYNC_DISPLAY in script for whether to show AM -Sync carrier or not. -Run with "-h" for command line help with setting USRP -ddc center frequency, decimation, rf data record, playback -and audio data recording. - -There are some controls for controlling a varactor and -tuning an antenna - just ignore them unless you want -to build a voltage tuned antenna to track frequency. - -There is also code for Web based control of frequency and -volume - so I can tune the radio with an Ipaq from bed. -Disabled by default - it takes a web server, some -directories and scripts to use. - - - |