Merge branch 'release-2.1.0' of bitbucket.org:k1jt/wsjtx into release-2.1.0

doc/CMakeLists.txt

@@ -52,6 +52,7 @@ set (UG_SRCS
   tutorial-example1.adoc
   tutorial-example2.adoc
   tutorial-example3.adoc
+  tutorial-example4.adoc
   tutorial-main-window.adoc
   tutorial-wide-graph-settings.adoc
   utilities.adoc
@@ -77,6 +78,8 @@ set (UG_IMGS
   images/FreqCal_Graph.png
   images/FreqCal_Results.png
   images/freemsg.png
+  images/ft4_decodes.png
+  images/ft4_waterfall.png
   images/ft8_decodes.png
   images/FT8_waterfall.png
   images/help-menu.png

doc/common/links.adoc

@@ -116,6 +116,7 @@ d). Edit lines as needed. Keeping them in alphabetic order help see dupes.
 :QRA64_EME: http://physics.princeton.edu/pulsar/K1JT/QRA64_EME.pdf[QRA64 for microwave EME]
 :svn: http://subversion.apache.org/packages.html#windows[Subversion]
 :win32: http://physics.princeton.edu/pulsar/K1JT/wsjtx-{VERSION}-win32.exe[wsjtx-{VERSION}-win32.exe]
+:win64: http://physics.princeton.edu/pulsar/K1JT/wsjtx-{VERSION}-win64.exe[wsjtx-{VERSION}-win64.exe]
 :wsjt-devel: https://lists.sourceforge.net/lists/listinfo/wsjt-devel[here]
 :wsjt_repo: https://sourceforge.net/p/wsjt/wsjt_orig/ci/master/tree/[WSJT Source Repository]
 :wspr_code: http://physics.princeton.edu/pulsar/K1JT/WSPRcode.exe[WSPRcode.exe]

doc/user_guide/en/install-windows.adoc

@@ -1,11 +1,12 @@
 // Status=review
 
-Download and execute the package file {win32}, following these
+Download and execute the package file {win32} (WinXP, Vista, Win 7,
-instructions:
+Win 8, Win10, 32-bit) or {win64} (Vista, Win 7, Win 8, Win10, 64-bit)
+following these instructions:
 
 * Install _WSJT-X_ into its own directory, for example `C:\WSJTX` or `
   C:\WSJT\WSJTX`, rather than the conventional location `C:\Program
-  Files (x86)\WSJTX`.
+  Files ...\WSJTX`.
 
 * All program files relating to _WSJT-X_ will be stored in the chosen
   installation directory and its subdirectories.

doc/user_guide/en/introduction.adoc

@@ -7,10 +7,10 @@ K1**JT**,`" while the suffix "`-X`" indicates that _WSJT-X_ started as
 an extended and experimental branch of the program
 _WSJT_.
 
-_WSJT-X_ Version {VERSION_MAJOR}.{VERSION_MINOR} offers nine different
+_WSJT-X_ Version {VERSION_MAJOR}.{VERSION_MINOR} offers ten different
-protocols or modes: *FT8*, *JT4*, *JT9*, *JT65*, *QRA64*, *ISCAT*,
+protocols or modes: *FT4*, *FT8*, *JT4*, *JT9*, *JT65*, *QRA64*,
-*MSK144*, *WSPR*, and *Echo*.  The first five are designed for making
+*ISCAT*, *MSK144*, *WSPR*, and *Echo*.  The first six are designed for
-reliable QSOs under extreme weak-signal conditions. They use nearly
+making reliable QSOs under weak-signal conditions. They use nearly
 identical message structure and source encoding.  JT65 and QRA64 were
 designed for EME ("`moonbounce`") on the VHF/UHF bands and have also
 proven very effective for worldwide QRP communication on the HF bands.
@@ -25,12 +25,17 @@ one-minute timed sequences of alternating transmission and reception,
 so a minimal QSO takes four to six minutes — two or three
 transmissions by each station, one sending in odd UTC minutes and the
 other even.  FT8 is operationally similar but four times faster
-(15-second T/R sequences) and less sensitive by a few dB.  On the HF
+(15-second T/R sequences) and less sensitive by a few dB.  FT4 is
-bands, world-wide QSOs are possible with any of these modes using
+faster still (7.5 s T/R sequences) and especially well suited for
-power levels of a few watts (or even milliwatts) and compromise
+radio contesting.  On the HF bands, world-wide QSOs are possible with
-antennas.  On VHF bands and higher, QSOs are possible (by EME and
+any of these modes using power levels of a few watts (or even
-other propagation types) at signal levels 10 to 15 dB below those
+milliwatts) and compromise antennas.  On VHF bands and higher, QSOs
-required for CW.
+are possible (by EME and other propagation types) at signal levels 10
+to 15 dB below those required for CW.
+
+Note that even though their T/R sequences are short, FT4 and FT8 are
+classified as slow modes because their message frames are sent
+only once per transmission.
 
 *ISCAT*, *MSK144*, and optionally submodes *JT9E-H* are "`fast`"
 protocols designed to take advantage of brief signal enhancements from
@@ -65,10 +70,10 @@ are available for all three platforms.
 
 *Version Numbers:* _WSJT-X_ release numbers have major, minor, and
 patch numbers separated by periods: for example, _WSJT-X_ Version
-1.9.0.  Temporary "`beta`" release candidates are sometimes made in
+2.1.0.  Temporary _beta release_ candidates are sometimes made in
 advance of a new general-availability release, in order to obtain user
-feedback.  For example, version 1.9.0-rc1, 1.9.0-rc2, etc., would
+feedback.  For example, version 2.1.0-rc1, 2.1.0-rc2, etc., would
-be beta releases leading up to the final release of v1.9.0.
+be beta releases leading up to the final release of v2.1.0.
 Release candidates should be used _only_ during a short testing
 period. They carry an implied obligation to provide feedback to the
 program development group.  Candidate releases should not be used on

doc/user_guide/en/new_features.adoc

@@ -1,40 +1,17 @@
 === New in Version {VERSION}
 
 For quick reference, here's a short list of features and capabilities
-added to _WSJT-X_ since Version 1.9.1:
+added to _WSJT-X_ since Version 2.0.1:
 
-- New FT8 and MSK144 protocols with 77-bit payloads permit these enhancements:
+- New FT4 protocol, designed especially for radio contesting
 
-* Optimized contest messages for NA VHF, EU VHF, Field Day, RTTY Roundup
+* T/R sequence length 7.5 s
 
-* Full support for "/R" and "/P" calls in relevant contests
+* Bandwidth 80 Hz
 
-* New logging features for contesting
+* Threshold sensitivity -17.5 dB
-
-* Integration with {n1mm_logger} and {writelog} for contesting
-
-* Improved support for compound and nonstandard callsigns
-
-* Nearly equal (or better) sensitivity compared to old protocols
-
-* Lower false decode rates
-
-- Improved color highlighting of received messages
-
-- Improved WSPR sensitivity
-
-- Expanded and improved UDP messages sent to companion programs
-
-- Bug fixes and other minor tweaks to user interface
-
-IMPORTANT: Note that for FT8 and MSK144 there is no backward
-compatibility with WSJT-X 1.9.1 and earlier.  Everyone using these
-modes should upgrade to WSJT-X 2.0 by January 1, 2019.
-
-IMPORTANT: _WSJT-X_ Version 2.0 drops support for Apple Mac OS X 10.9
-(Mavericks). It is possible to build from source for this operating
-system version but the DMG installer package requires 10.10 or later.
 
+- Improvements to accessibility
 
 === Documentation Conventions
 

doc/user_guide/en/protocols.adoc

@@ -12,10 +12,10 @@ Special cases allow other information such as add-on callsign prefixes
 aim is to compress the most common messages used for minimally valid
 QSOs into a fixed 72-bit length.
 
-The information payload for FT8 and MSK144 contains 77 bits.  The 5
+The information payload for FT4, FT8, and MSK144 contains 77 bits.
-additional bits are used to flag special message types used for FT8
+The 5 additional bits are used to flag special message types used for
-DXpedition Mode, contesting, nonstandard callsigns, and a few other
+FT8 DXpedition Mode, contesting, nonstandard callsigns, and a few
-special types.
+other special types.
 
 A standard amateur callsign consists of a one- or two-character
 prefix, at least one of which must be a letter, followed by a digit
@@ -67,18 +67,29 @@ _WSJT-X_ modes have continuous phase and constant envelope.
 [[SLOW_MODES]]
 === Slow Modes
 
+[[FT4PRO]]
+==== FT4
+
+Forward error correction (FEC) in FT4 uses a low-density parity check
+(LDPC) code with 77 information bits, a 14-bit cyclic redundancy check
+(CRC), and 83 parity bits making a 174-bit codeword.  It is thus
+called an LDPC (174,91) code.  Synchronization uses four 4×4 Costas
+arrays, and ramp-up and ramp-down symbols are inserted at the start
+and end of each transmission.  Modulation is 4-tone frequency-shift
+keying with Gaussian smoothing of frequency transitions (4-GFSK).  The
+keying rate is 12000/576 = 20.8333 baud.  Each transmitted symbol
+conveys two bits, so the total number of channel symbols is 174/2 + 16
++ 2 = 105.  The total bandwidth is 4 × 20.8333 = 83.3 Hz.
+
 [[FT8PRO]]
 ==== FT8
 
-Forward error correction (FEC) in FT8 uses a low-density parity check
+FT8 uses the same LDPC (174,91) code as FT4.  Modulation is 8-tone
-(LDPC) code with 77 information bits, a 14-bit cyclic redundancy check
+frequency-shift keying (8-GFSK) at 12000/1920 = 6.25 baud.
-(CRC), and 83 parity bits making a 174-bit codeword.  It is thus
+Synchronization uses 7×7 Costas arrays at the beginning, middle, and
-called an LDPC (174,91) code.  Synchronization uses 7×7 Costas arrays
+end of each transmission.  Transmitted symbols carry three bits, so
-at the beginning, middle, and end of each transmission.  Modulation is
+the total number of channel symbols is 174/3 + 21 = 79.  The total
-8-tone frequency-shift keying (8-FSK) at 12000/1920 = 6.25 baud.  Each
+occupied bandwidth is 8 × 6.25 = 50 Hz.
-transmitted symbol carries three bits, so the total number of channel
-symbols is 174/3 + 21 = 79.  The total occupied bandwidth is 8 × 6.25
-= 50 Hz.
 
 [[JT4PRO]]
 ==== JT4
@@ -227,7 +238,8 @@ which the probability of decoding is 50% or higher.
 |===============================================================================
 |Mode |FEC Type |(n,k) | Q|Modulation type|Keying rate (Baud)|Bandwidth (Hz)
 |Sync Energy|Tx Duration (s)|S/N Threshold (dB)
-|FT8  |LDPC, r=1/2|(174,91)| 8| 8-FSK| 6.25 | 50.0 | 0.27| 12.6 | -21
+|FT4  |LDPC, r=1/2|(174,91)| 4| 4-GFSK| 20.8333 | 83.3 | 0.15| 5.04 | -17.5
+|FT8  |LDPC, r=1/2|(174,91)| 8| 8-GFSK| 6.25 | 50.0 | 0.27| 12.6 | -21
 |JT4A |K=32, r=1/2|(206,72)| 2| 4-FSK| 4.375| 17.5 | 0.50| 47.1 | -23
 |JT9A |K=32, r=1/2|(206,72)| 8| 9-FSK| 1.736| 15.6 | 0.19| 49.0 | -27
 |JT65A |Reed Solomon|(63,12) |64|65-FSK| 2.692| 177.6 | 0.50| 46.8 | -25
@@ -246,6 +258,7 @@ comparable to tone spacing.
 [width="50%",cols="h,3*^",frame=topbot,options="header"]
 |=====================================
 |Mode  |Tone Spacing  |BW (Hz)|S/N (dB)
+|FT4   |20.8333 | 83.3  |-17.5
 |FT8   |6.25 |  50.0  |-21
 |JT4A  |4.375|  17.5  |-23
 |JT4B  |8.75 |  30.6  |-22

doc/user_guide/en/tutorial-example4.adoc

@@ -0,0 +1,51 @@
+// Status=review
+.Main Window:
+- Select *FT4* on the *Mode* menu.
+- Double-click on *Erase* to clear both text windows.
+
+.Wide Graph Settings:
+
+- *Bins/Pixel* = 7, *Start* = 100 Hz, *N Avg* = 1
+- Adjust the width of the Wide Graph window so that the upper
+frequency limit is approximately 4000 Hz.
+
+.Open a Wave File:
+
+- Select *File | Open* and navigate to
++...\save\samples\FT4\000000_000002.wav+.  The waterfall and Band
+Activity window should look something like the following screen shots.
+Most of the decoded messages use the *RTTY Roundup* message formats.
+
+[[X15]]
+image::ft4_waterfall.png[align="left",alt="Wide Graph Decode FT4"]
+
+image::ft4_decodes.png[align="left"]
+
+- Click with the mouse anywhere on the waterfall display. The green Rx
+frequency marker will jump to your selected frequency, and the Rx
+frequency control on the main window will be updated accordingly.
+
+- Do the same thing with the *Shift* key held down.  Now the red Tx
+frequency marker and its associated control on the main window will
+follow your frequency selections.
+
+- Do the same thing with the *Ctrl* key held down.  Now the both colored 
+markers and both spinner controls will follow your selections.
+
+- Now double-click on any of the the lines of decoded text in the Band
+Activity window.  Any line will show similar behavior, setting
+Rx frequency to that of the selected message and leaving Tx frequency
+unchanged.  To change both Rx and Tx frequencies, hold *Ctrl* down
+when double-clicking.
+
+TIP: To avoid QRM from competing callers, it is frequently desirable
+to answer a CQ on a different frequency from that of the CQing
+station.  The same is true when you tail-end another QSO.  Choose a Tx
+frequency that appears to be not in use.  You might want to check the
+box *Hold Tx Freq*.
+
+TIP: Keyboard shortcuts *Shift+F11* and *Shift+F12* provide an easy
+way to move your FT4 Tx frequency down or up in 90 Hz steps.
+
+IMPORTANT: When finished with this Tutorial, don't forget to re-enter
+your own callsign as *My Call* on the *Settings | General* tab.

doc/user_guide/en/wsjtx-main.adoc

@@ -140,6 +140,10 @@ include::tutorial-example2.adoc[]
 === FT8
 include::tutorial-example3.adoc[]
 
+[[TUT_EX4]]
+=== FT4
+include::tutorial-example4.adoc[]
+
 [[MAKE_QSOS]]
 == Making QSOs
 include::make-qso.adoc[]

lib/77bit/77bit.txt

@@ -22,15 +22,10 @@ i3.n3 Example message                    Bits           Total  Purpose
 2     PA3XYZ/P GM4ABC/P R JO22           28 1 28 1 1 15   74   EU VHF contest
 3     TU; W9XYZ K1ABC R 579 MA           1 28 28 1 3 13   74   ARRL RTTY Roundup
 4     <WA9XYZ> PJ4/KA1ABC RR73           12 58 1 2 1      74   Nonstandard calls
-5     ... tbd
+5     TU; W9XYZ K1ABC R-07 FN            1 28 28 1 7 9    74   WWROF contest ?
 6     ... tbd
 7     ... tbd
 ----------------------------------------------------------------------------------
-In case we need them, later:
-
-5     TU; W9XYZ K1ABC R 579 8 MA         1 28 28 1 3 6 7  74   CQ WW RTTY
-6     TU; W9XYZ K1ABC R 579 MA           1 28 28 1 3 13   74   CQ WPX RTTY
-----------------------------------------------------------------------------------
 NB: three 74-bit message types and two 71-bit message subtypes are still TBD.
 ----------------------------------------------------------------------------------
 

lib/77bit/messages.txt

@@ -72,7 +72,18 @@ CQ W9XYZ EN37
                                    W9XYZ <YW18FIFA> R-09
 YW18FIFA <W9XYZ> RRR
                                    <W9XYZ> YW18FIFA 73
-10. Other stuff
+
+10. WWROF FT8/FT4 contest
+-----------------------------------------------------------
+CQ TEST K1ABC FN42
+                                   K1ABC W9XYZ -16 EN
+W9XYZ K1ABC R-07 FN
+                                   K1ABC W9XYZ RR73
+                                   K1ABC G3AAA -11 IO
+TU; G3AAA K1ABC R-09 FN
+                                   K1ABC G3AAA RR73
+
+11. Other stuff
 -----------------------------------------------------------
 TNX BOB 73 GL
 CQ YW18FIFA

lib/77bit/packjt77.f90

@@ -172,6 +172,10 @@ subroutine pack77(msg0,i3,n3,c77)
   call pack77_4(nwords,w,i3,n3,c77)
   if(i3.ge.0) go to 900
 
+! Check Type 5 (WWROF contest exchange)
+  call pack77_5(nwords,w,i3,n3,c77)
+  if(i3.ge.0) go to 900
+
 ! It defaults to free text
 800 i3=0
   n3=0
@@ -204,6 +208,7 @@ subroutine unpack77(c77,nrx,msg,unpk77_success)
   character*6 cexch,grid6
   character*4 grid4,cserial
   character*3 csec(NSEC)
+  character*2 cfield
   character*38 c
   integer hashmy10,hashmy12,hashmy22,hashdx10,hashdx12,hashdx22
   logical unpk28_success,unpk77_success
@@ -491,8 +496,31 @@ subroutine unpack77(c77,nrx,msg,unpk77_success)
      else
         msg='CQ '//trim(call_2)
      endif
+     
+  else if(i3.eq.5) then
+! 5    TU; W9XYZ K1ABC R-09 FN             1 28 28 1 7 9       74   WWROF contest
+     read(c77,1041) itu,n28a,n28b,ir,irpt,nexch,i3
+1041 format(b1,2b28.28,b1,b7.7,b9.9,b3.3)
+     call unpack28(n28a,call_1,unpk28_success)
+     if(.not.unpk28_success) unpk77_success=.false.
+     call unpack28(n28b,call_2,unpk28_success)
+     if(.not.unpk28_success) unpk77_success=.false.
+     write(crpt,'(i3.2)') irpt-35
+     if(crpt(1:1).eq.' ') crpt(1:1)='+'
+     n1=nexch/18
+     n2=nexch - 18*n1
+     cfield(1:1)=char(ichar('A')+n1)
+     cfield(2:2)=char(ichar('A')+n2)
+     if(itu.eq.0 .and. ir.eq.0) msg=trim(call_1)//' '//trim(call_2)//             &
+          ' '//crpt//' '//cfield
+     if(itu.eq.1 .and. ir.eq.0) msg='TU; '//trim(call_1)//' '//trim(call_2)//     &
+          ' '//crpt//' '//cfield
+     if(itu.eq.0 .and. ir.eq.1) msg=trim(call_1)//' '//trim(call_2)//             &
+          ' R'//crpt//' '//cfield
+     if(itu.eq.1 .and. ir.eq.1) msg='TU; '//trim(call_1)//' '//trim(call_2)//     &
+          ' R'//crpt//' '//cfield
   endif
-  if(msg(1:4).eq.'CQ <') unpk77_success=.false.
+!  if(msg(1:4).eq.'CQ <') unpk77_success=.false.
 
   return
 end subroutine unpack77
@@ -1040,12 +1068,11 @@ subroutine pack77_3(nwords,w,i3,n3,c77)
      call chkcall(w(i1+1),bcall_2,ok2)
      if(.not.ok1 .or. .not.ok2) go to 900
      crpt=w(nwords-1)(1:3)
+     if(index(crpt,'-').ge.1 .or. index(crpt,'+').ge.1) go to 900
      if(crpt(1:1).eq.'5' .and. crpt(2:2).ge.'2' .and. crpt(2:2).le.'9' .and.    &
           crpt(3:3).eq.'9') then
         nserial=0
         read(w(nwords),*,err=1) nserial
-!1       i3=3
-!        n3=0
      endif
 1    mult='   '
      imult=-1
@@ -1150,6 +1177,60 @@ subroutine pack77_4(nwords,w,i3,n3,c77)
 900 return
 end subroutine pack77_4
 
+subroutine pack77_5(nwords,w,i3,n3,c77)
+! Check Type 5 (WWROF contest exchange)
+
+  character*13 w(19)
+  character*77 c77
+  character*6 bcall_1,bcall_2
+  character*3 mult
+  character crpt*4
+  character c1*1,c2*2
+  logical ok1,ok2
+
+  if(nwords.eq.4 .or. nwords.eq.5 .or. nwords.eq.6) then
+     i1=1
+     if(trim(w(1)).eq.'TU;') i1=2
+     call chkcall(w(i1),bcall_1,ok1)
+     call chkcall(w(i1+1),bcall_2,ok2)
+     if(.not.ok1 .or. .not.ok2) go to 900
+     crpt=w(nwords-1)(1:4)
+     if(index(crpt,'-').lt.1 .and. index(crpt,'+').lt.1) go to 900
+
+     c1=crpt(1:1)
+     c2=crpt(1:2)
+     irpt=-1
+     if(c1.eq.'+' .or. c1.eq.'-') then
+        ir=0
+        read(w(nwords-1),*,err=900) irpt
+        irpt=irpt+35
+     else if(c2.eq.'R+' .or. c2.eq.'R-') then
+        ir=1
+        read(w(nwords-1)(2:),*) irpt
+        irpt=irpt+35
+     endif
+     if(irpt.eq.-1 .or. len(trim(w(nwords))).ne.2) go to 900
+     c2=w(nwords)(1:2)
+     n1=ichar(c2(1:1)) - ichar('A')
+     n2=ichar(c2(2:2)) - ichar('A')
+     if(n1.lt.0 .or. n1.gt.17) go to 900
+     if(n2.lt.0 .or. n2.gt.17) go to 900
+     nexch=18*n1 + n2
+     i3=5
+     n3=0
+     itu=0
+     if(trim(w(1)).eq.'TU;') itu=1
+     call pack28(w(1+itu),n28a)
+     call pack28(w(2+itu),n28b)
+! 5    TU; W9XYZ K1ABC R-09 FN             1 28 28 1 7 9       74   WWROF contest
+     write(c77,1010) itu,n28a,n28b,ir,irpt,nexch,i3
+1010 format(b1,2b28.28,b1,b7.7,b9.9,b3.3)
+
+  end if
+  
+900 return
+end subroutine pack77_5
+
 subroutine packtext77(c13,c71)
 
   character*13 c13,w

shortcuts.txt

@@ -13,11 +13,11 @@
   <tr><td><b>F7       </b></td><td>Display Message Averaging window</td></tr>
   <tr><td><b>F11      </b></td><td>Move Rx frequency down 1 Hz</td></tr>
   <tr><td><b>Ctrl+F11 </b></td><td>Move identical Rx and Tx frequencies down 1 Hz</td></tr>
-  <tr><td><b>Shift+F11 </b></td><td>Move Tx frequency down 60 Hz</td></tr>
+  <tr><td><b>Shift+F11 </b></td><td>Move Tx frequency down 60 Hz (FT8) or 90 Hz (FT4)</td></tr>
   <tr><td><b>Ctrl+Shift+F11 </b></td><td>Move dial frequency down 2000 Hz</td></tr>
   <tr><td><b>F12      </b></td><td>Move Rx frequency up 1 Hz</td></tr>
   <tr><td><b>Ctrl+F12 </b></td><td>Move identical Rx and Tx frequencies up 1 Hz</td></tr>
-  <tr><td><b>Shift+F12 </b></td><td>Move Tx frequency up 60 Hz</td></tr>
+  <tr><td><b>Shift+F12 </b></td><td>Move Tx frequency up 60 Hz (FT8) or 90 Hz (FT4)</td></tr>
   <tr><td><b>Ctrl+Shift+F12 </b></td><td>Move dial frequency up 2000 Hz</td></tr>
   <tr><td><b>Alt+1-6  </b></td><td>Set now transmission to this number on Tab 1</td></tr>
   <tr><td><b>Ctl+1-6  </b></td><td>Set next transmission to this number on Tab 1</td></tr>

widgets/mainwindow.cpp

@@ -1991,7 +1991,7 @@ void MainWindow::keyPressEvent (QKeyEvent * e)
         if(e->modifiers() & Qt::ControlModifier) n+=100;
         if(e->modifiers() & Qt::ShiftModifier) {
           int offset=60;
-          if(m_mode=="FT4") offset=100;
+          if(m_mode=="FT4") offset=90;
           ui->TxFreqSpinBox->setValue(ui->TxFreqSpinBox->value()-offset);
         } else{
           bumpFqso(n);
@@ -2007,7 +2007,7 @@ void MainWindow::keyPressEvent (QKeyEvent * e)
         if(e->modifiers() & Qt::ControlModifier) n+=100;
         if(e->modifiers() & Qt::ShiftModifier) {
           int offset=60;
-          if(m_mode=="FT4") offset=100;
+          if(m_mode=="FT4") offset=90;
           ui->TxFreqSpinBox->setValue(ui->TxFreqSpinBox->value()+offset);
         } else {
           bumpFqso(n);
@@ -5559,6 +5559,7 @@ void MainWindow::acceptQSO (QDateTime const& QSO_date_off, QString const& call,
     }
 
   if(m_config.clear_DX () and SpecOp::HOUND != m_config.special_op_id()) clearDX ();
+  auto_tx_mode (false);
   m_dateTimeQSOOn = QDateTime {};
   auto special_op = m_config.special_op_id ();
   if (SpecOp::NONE < special_op && special_op < SpecOp::FOX &&