MOre edits to User Guide.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7238 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

doc/user_guide/en/compiling.adoc

@@ -1,20 +0,0 @@
-// Status=review
-// Note to developers. The URL http://developer.berlios.de/projects/wsjt/. is
-// to a very old src version of WSJT 5.7 or so. WSJTX is not listed at all.
-// Also, all the Qt4 stuff is now obsolete, and needs to be updated.
-
-// Web Links
-// Source File is: dev-guide/source/wsjtx-dev/wsjtx-dev.adoc
-// At some point, compiling_wsjtx_linux.html needs a name change to: wsjtx-dev.html
-// These files can only be built on Linux, due to source-highlight being removed
-// From the windows build batch file.
-:dev-guide: http://www.physics.princeton.edu/pulsar/K1JT/wsjtx-doc/wsjt-dev-guide.html[WSJT Developers Guide]
-
-// mail-to links
-
-A Developer's Guide for WSJT and its sister programs is itself under
-development.  The present draft contains full instructions for
-compiling _WSJT-X_ in Linux, and an outline of steps required in
-Windows.  
-
-{dev-guide}

doc/user_guide/en/controls-functions-status-bar.adoc

@@ -18,5 +18,5 @@ displayed exactly as it will be decoded by receiving stations.  A
 progress bar shows the elapsed fraction of a Tx or Rx sequence.
 Finally, if the Watchdog timer was enabled on the *settings | General*
 tab, a label in the lower right-hand corner displays the number of
-minutes remaining before timout.
+minutes remaining before timeout.
 

doc/user_guide/en/docinfo.html

@@ -4,7 +4,7 @@
   }
 
   body {
-  font-family: Arial, Hevetica, sans-serif;
+  font-family: Arial, Helvetica, sans-serif;
   }
 
   h1, h2, h3, h4, h5, h6 {

doc/user_guide/en/implementation.adoc

@@ -1,87 +0,0 @@
-// Status=review
-.Transmitting
-
-Immediately before the start of a transmission _WSJT-X_ encodes a
-user's message and computes the sequence of tones to be sent.  The
-audio waveform is computed on-the-fly, with 16-bit integer samples
-sent to the audio output device at a 48000 Hz rate.  Generated signals
-have continuous phase and constant amplitude, and there are no key
-clicks.  The transmitter's power amplifier need not be highly linear.
-
-.Receiving
-
-_WSJT-X_ acquires 16-bit integer samples from the audio input device
-at a 48000 Hz rate and immediately downsamples the stream to 12000 Hz.
-Spectra from overlapping segments are computed for the waterfall
-display and saved for the decoder at intervals of 3456/12000 = 0.288
-s, half the JT9 symbol length.
-
-.Decoding
-
-At the end of a reception sequence, about 50 seconds into the UTC
-minute, received data samples are forwarded to the decoder.  In JT9
-and JT65 modes the decoder goes through its full procedure twice:
-first at the selected Rx frequency, and then over the full displayed
-frequency range.  Each decoding pass can be described as a sequence of
-discrete blocks.  Details of the functional blocks are different for
-each mode.  In dual-mode JT9+JT65 operation on computers with more
-than one CPU, decoding computations for the two modes are done in
-parallel.
-
-The basic decoding algorithm for JT65 mode is described in the 2005
-{jt65protocol} paper.  The following list summarizes the corresponding
-algorithm for JT9 mode. Blocks are labeled here with the names of
-functional procedures in the code.
-
-[horizontal]
-+sync9+::    Use sync symbols to find candidate JT9 signals 
-            in the specified frequency range
-
-Then, at the frequency of each plausible candidate:
-
-[horizontal]
-+downsam9+::  Mix, filter and downsample to 16 complex 
-            samples/symbol
-
-+peakdt9+::   Using sync symbols, time-align to start of JT9 symbol 
-            sequence
-
-+afc9+::    Measure frequency offset and possible drift
-
-+twkfreq+::   Remove frequency offset and drift
-
-+symspec2+::  Compute 8-bin spectra for 69 information-carrying
-            symbols, using the time- and frequency-aligned data;
-            transform to yield 206 single-bit soft symbols
-
-+interleave9+:: Remove single-bit interleaving imposed at the
-	    transmitter
-
-+decode9+::   Retrieve a 72-bit user message using the sequential
-            Fano algorithm 
-
-
-+unpackmsg+:: Unpack a human-readable message from the 72-bit 
-            compressed format
-
-Decoding of clean JT9 signals in a white-noise background starts to
-fail below signal-to-noise ratio -25 dB and reaches 50% copy at -26
-dB.
-
-With marginal or unrecognizable signals the sequential Fano algorithm
-can take exponentially long times.  If the +sync9+ step in the above
-sequence finds many seemingly worthy candidate signals and many of
-them turn out to be undecodable, the decoding loop can take an
-inconveniently long time.  For this reason the step labeled +decode9+
-is programmed to "`time out`" and report failure for a given signal if
-it takes too long.  The choices *Fast | Normal | Deepest* on the
-*Decode* menu provide the user with a three-step adjustment of the
-timeout limit.
-
-Decoding in JT4 and WSPR modes is basically similar to that for JT9.
-The same K=32, r=1/2 sequential Fano algorithm is used for all three
-modes.  Other details such as tone numbers, symbol lengths,
-synchronizing scheme, and subroutine names are distinct for each mode.
-The WSPR decoder now uses a two-pass algorithm.  Decoded signals are
-reconstructed and subtracted from the received waveform, after which a
-second decoding pass takes place.

doc/user_guide/en/protocols.adoc

@@ -46,7 +46,7 @@ following sequence (60 bits per line):
 [[JT9PRO]]
 ==== JT9
 
-FEC in JT9 uses the same strong convolutional code aa JT4: constraint
+FEC in JT9 uses the same strong convolutional code as JT4: constraint
 length K=32, rate r=1/2, and a zero tail, leading to an encoded
 message length of (72+31) × 2 = 206 information-carrying
 bits. Modulation is nine-tone frequency-shift keying, 9-FSK at
@@ -249,7 +249,8 @@ and your QSO partner ± 200 Hz.
 .Parameters of Fast Modes
 [width="90%",cols="3h,^3,^2,^1,^2,^2,^2,^2,^2",frame="topbot",options="header"]
 |=====================================================================
-|Mode     |FEC Type   |(k,n)   | Q|  Mod | Baud |BW (Hz)|fSync|TxT (s)
+|Mode     |FEC Type   |(n,k)   | Q|Modulation Type|Keying rate (Baud)
+|Bandwidth (Hz)|Sync Energy|Tx Duration (s)
 |ISCAT-A  |   -       |  -     |42|42-FSK| 21.5 |  905  | 0.17| 1.176 
 |ISCAT-B  |   -       |  -     |42|42-FSK| 43.1 | 1809  | 0.17| 0.588 
 |JT9E     |K=32, r=1/2|(206,72)| 8| 9-FSK| 25.0 |  225  | 0.19| 3.400