Update User Manual

User-Manual.md

@@ -3,6 +3,7 @@ wfview is written such that most features should be pretty obvious just by their
 
 ## Main view: 
 ![0_view_tab](uploads/170662e97b314a75a9e49558db5beb76/0_view_tab.png)
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 This is the main tab and view for wfview. From this screen, you can adjust the waterfall display, change the radio's mode, frequency, AF gain, and RF (receive) gain. 
 
 The center divider, between the "plot" at the top and the "waterfall" at the bottom can be dragged vertically if you prefer to see more of the waterfall or more of the plot. To adjust the bounds of the waterfall and plot, use the Edge and Span (center) options. Edge allows you to select between the three edge presets on the IC-7300, typically the CW portion, Phone portion, or the entire portion of the band. If "Center Mode" is checked, then one can select the desired span, in Khz, to either side of the center, using the pop-down menu. These are all the same controls that one finds at the screen of the IC-7300. 
@@ -29,11 +30,13 @@ This tab is pretty self-explanatory. Each button corresponds to a ham radio band
 
 ## The Frequency tab:
 ![2_freq_tab](uploads/54eeeb9319fda61e2b45f1137d733247/2_freq_tab.png)
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 Like the band tab, this tab is pretty simple. Key in the frequency you want, either using the keyboard or by pressing the buttons. Now press Enter. Done. If you want to store a preset, first get the radio to the mode and frequency desired. Once you have that, just type in the preset number and then hit "STO". To recall, type the preset number and hit "RCL". If you ever used an RPN calculator, you already know how to do this. Presets are saved, by the way, in the preference file in plain text. Do be sure and press the "Save Settings" button on the settings tab if you modify the presets. The plain text file is located in ~/.config/eliggett/wfview.conf. I am sorry that the presets are not written to the file in any kind of logical order, and it appears the only way to change it is for me to roll my own preference class... This frequency tab, by the way, works great from a touch screen. That's why the "Back" and "CE" buttons are here -- needed if you don't have a keyboard. 
 
 
 ## The Settings tab: 
 ![3_settings_tab](uploads/ce5cec5f966a27480b1be7c868db58f5/3_settings_tab.png)
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 From this tab, you can adjust radio and wfview settings. 
 
 The "Draw Peaks" option toggles the persistent "peak hold" feature of the plot on the main tab. If you don't like peaks, just turn it off. The "Tracer" option toggles the tracer that follows the center frequency in the plot. "Show full screen" toggles full screen mode, and pressing "Save Settings" will preserve these settings for the next launch of the program. If you are building a dedicated Raspberry Pi as a display for your IC-7300, set the full screen mode to be the default and place wfview in your desktop environment's startup file.