WSJT-X/doc/user_guide/en/make-qso.adoc
Bill Somerville c669046be1 Merged from trunk:
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r7861 | k9an | 2017-07-12 22:49:39 +0100 (Wed, 12 Jul 2017) | 1 line

Use quarter-symbol steps for time sync. Lower sync threshold. Implement subtraction and two pass decoding. Use osd2 only near nfqso.
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r7862 | k9an | 2017-07-13 01:28:57 +0100 (Thu, 13 Jul 2017) | 1 line

Fix NHSYM.
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r7863 | k9an | 2017-07-13 01:31:52 +0100 (Thu, 13 Jul 2017) | 1 line

Fix a comment. No code changes.
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r7864 | k9an | 2017-07-13 01:43:56 +0100 (Thu, 13 Jul 2017) | 1 line

Fix another bounds error.
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r7879 | k1jt | 2017-07-14 17:02:01 +0100 (Fri, 14 Jul 2017) | 1 line

Code cleanup and test ofFT8 decodes with erasures.  Do not use on the air.
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r7881 | k1jt | 2017-07-14 19:19:48 +0100 (Fri, 14 Jul 2017) | 1 line

Fix nutc in jt9; alternative sync value for late-start FT8 signals.
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r7882 | k9an | 2017-07-14 20:22:53 +0100 (Fri, 14 Jul 2017) | 1 line

Move ft8apset to a separate file.
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r7884 | k9an | 2017-07-14 20:35:22 +0100 (Fri, 14 Jul 2017) | 1 line

Add ft8apset.f90.
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r7885 | k9an | 2017-07-14 20:46:04 +0100 (Fri, 14 Jul 2017) | 1 line

Update call to ft8b.
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r7886 | k9an | 2017-07-14 21:12:29 +0100 (Fri, 14 Jul 2017) | 1 line

More work on ap.
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r7887 | k9an | 2017-07-14 23:09:50 +0100 (Fri, 14 Jul 2017) | 1 line

More work on AP. Deep decode is unstable - not for use on the air.
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r7890 | k9an | 2017-07-15 01:33:25 +0100 (Sat, 15 Jul 2017) | 1 line

Turn off ap.
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r7891 | k9an | 2017-07-15 02:49:44 +0100 (Sat, 15 Jul 2017) | 1 line

Add some more items to the lun 81 diagnostics.
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r7892 | k9an | 2017-07-15 15:21:18 +0100 (Sat, 15 Jul 2017) | 1 line

Properly calculate metrics for non-ap bits that reside in symbols that contain ap bits.
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r7893 | k9an | 2017-07-15 16:43:41 +0100 (Sat, 15 Jul 2017) | 1 line

Use overlap and add to apply reference filter/amplitude equalization.
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r7894 | k9an | 2017-07-15 16:46:46 +0100 (Sat, 15 Jul 2017) | 1 line

Improve a comment.
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r7895 | k9an | 2017-07-16 01:10:37 +0100 (Sun, 16 Jul 2017) | 1 line

Make refspec filter causal for overlap and add.
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r7911 | k9an | 2017-07-16 16:56:06 +0100 (Sun, 16 Jul 2017) | 1 line

More work on Deep decoding.
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r7917 | k9an | 2017-07-16 18:08:09 +0100 (Sun, 16 Jul 2017) | 1 line

Properly round the printed snr.
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r7925 | k9an | 2017-07-18 02:12:11 +0100 (Tue, 18 Jul 2017) | 1 line

Work on ap decoding. Diagnostic write enabled.
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r7926 | k9an | 2017-07-18 16:22:20 +0100 (Tue, 18 Jul 2017) | 1 line

Fix a bug in AP decoding when iaptype=2. Decrease time-sync search range to +/- 1.5s. Fix a big with erasure decoding.
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r7927 | k1jt | 2017-07-20 00:23:20 +0100 (Thu, 20 Jul 2017) | 1 line

Remove slider next to audio level meter.
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r7928 | k1jt | 2017-07-20 16:15:00 +0100 (Thu, 20 Jul 2017) | 6 lines

1. Alt+F8 arms "Call 1st" as if a CQ had been sent.
2. "Call 1st" label turns red when armed to respond to a caller.
3. Suppress some recognizable false decodes, send them to cumulative file
   "data_dir/false_decodes.txt".
4. Reduce sleep delay in decoder() to 10 ms.

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r7929 | k1jt | 2017-07-20 20:23:17 +0100 (Thu, 20 Jul 2017) | 1 line

Fix wording in list of keyboard shortcuts.
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r7930 | k1jt | 2017-07-20 20:25:08 +0100 (Thu, 20 Jul 2017) | 2 lines

Comment out diagnostic write.

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r7931 | k9an | 2017-07-20 22:08:36 +0100 (Thu, 20 Jul 2017) | 1 line

Only print dupes if SNR is higher than what has already been printed.
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r7932 | k9an | 2017-07-21 23:02:06 +0100 (Fri, 21 Jul 2017) | 1 line

Add to the list of allowed keywords in jtmsg.f90.
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r7933 | k9an | 2017-07-22 04:01:09 +0100 (Sat, 22 Jul 2017) | 1 line

Add variables lapon and napwid to control ap decoding. Reconfigure the logic for AP decoding and ordered-statistics decoding.
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r7934 | k9an | 2017-07-22 14:21:03 +0100 (Sat, 22 Jul 2017) | 1 line

Prevent a certain type of non-standard message from being flagged as a false decode.
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r7935 | k9an | 2017-07-22 18:12:48 +0100 (Sat, 22 Jul 2017) | 1 line

More informative end-of-line annotation for AP decodes.
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r7936 | k9an | 2017-07-24 15:23:22 +0100 (Mon, 24 Jul 2017) | 1 line

Bring msk144d2 more up to date. Runs now, but still needs more work.
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r7937 | k1jt | 2017-07-24 15:48:16 +0100 (Mon, 24 Jul 2017) | 2 lines

Correct the spacing between marked lowest and highest FT8 tones for RxFreq (green) and TxFreq (red). 

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r7938 | bsomervi | 2017-07-24 20:27:14 +0100 (Mon, 24 Jul 2017) | 4 lines

Add double clickable push button and radio button widgets

These emit  doubleClicked signal  when double-clicked,  otherwise they
are identical to their super-classes.
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r7939 | bsomervi | 2017-07-24 20:27:23 +0100 (Mon, 24 Jul 2017) | 42 lines

Add the  option to ALT+click  a decoded CQ  or QRZ message  which only
moves the Rx  frequency to theirs, this facilitates  calling a station
who is busy and may have  many callers on their frequency. Updated the
corresponding mouse shortcuts help text.

Allow for times with seconds when parsing fast mode and FT8 decodes.

Exclude the RR73 grid square from  and grid validation or matching, it
is not a grid square any more as  far as WSJT-X is concerned, it is an
RRR substitute.

Add a  simple state  machine for  QSO progress  such that  replies and
auto-sequencing can be better controlled.

Get compound callsign edge cases working again and allow QSOs from and
to compound callsign holders working in as many situations as possible
including  auto-sequencing and  FT8 auto-reply  mode.  This  does mean
that a  "DE W6/K1ABC DM93"  type message close to  a callers Tx  or Rx
frequency will be taken  as a reply to a CQ call  despite it not being
explicitly addressed back to the  CQ caller. Compound callsigns should
work in MSK144 contest  mode also as well as in  short code modes with
some  minor  restrictions   (short  codes  will  not   be  used  where
configuration demands that  a message be used to send  a full compound
callsign).

Auto sequencing  has been made  generic such that  it can be  used for
more than one mode if desired.

Allow the use of free text messages to sign off in auto sequenced QSOs
without the message  being overwritten by the  sequencer. Double click
actions have  been added to the  Tx5 radio and push  buttons to revert
back to the default standard 73 message.

Make DisplayText  class interface  more idiomatic  C++ and  simplify a
bit.

Fixed  some  displayed widget  arrangements  for  different modes  and
sub-modes  so that  they  are  consistent when  starting  up and  when
switching mode or sub-mode.

This is  a big change which  has been extensively tested  but no doubt
there will also be some new defects introduced.
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r7940 | bsomervi | 2017-07-25 17:51:19 +0100 (Tue, 25 Jul 2017) | 1 line

Fix issue with Tx5 not being generated with a new DX Call
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r7941 | bsomervi | 2017-07-25 17:51:27 +0100 (Tue, 25 Jul 2017) | 1 line

Fix country name display that broke in r7939
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r7942 | bsomervi | 2017-07-25 17:51:34 +0100 (Tue, 25 Jul 2017) | 1 line

Ensure JT9 lowest decode frequency spin box is disabled when not available
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r7943 | bsomervi | 2017-07-25 17:51:42 +0100 (Tue, 25 Jul 2017) | 4 lines

Pick up tail-enders when completing a call 1st QSO after re-enabling auto Tx

Allow  any message  to  start  a QSO  so  long as  we  are  not in  an
auto-reply QSO.
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r7944 | bsomervi | 2017-07-25 17:51:49 +0100 (Tue, 25 Jul 2017) | 1 line

Exclude all decode quality markers from internal decode parsing and matching
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r7945 | k9an | 2017-07-25 20:06:05 +0100 (Tue, 25 Jul 2017) | 1 line

Move '?' quality warning to message(22:22).
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r7946 | k9an | 2017-07-25 21:55:13 +0100 (Tue, 25 Jul 2017) | 1 line

Reject candiates with fewer than 7 correct hard-decoded sync symbols.
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r7947 | bsomervi | 2017-07-26 02:38:37 +0100 (Wed, 26 Jul 2017) | 1 line

Force Settings tab to Radio tab when navigating there from a rig error message
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r7948 | bsomervi | 2017-07-26 02:38:44 +0100 (Wed, 26 Jul 2017) | 1 line

Correct the highlighting of the Call 1st check box label
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r7949 | bsomervi | 2017-07-26 02:38:57 +0100 (Wed, 26 Jul 2017) | 5 lines

Option to skip using grid reply message

Enable and disable  by double-clicking the Tx1 button  or the adjacent
radio button.  Tx1 message shows  grayed out  when the Tx1  message is
elided.
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r7950 | bsomervi | 2017-07-26 02:39:04 +0100 (Wed, 26 Jul 2017) | 6 lines

Option to use RR73 grid message as RRR message substitutes

Enable or  disable by double-clicking  the Tx4 button or  the adjacent
radio button. Is auto disabled by a band change as it is expected that
the user  reassess the  conditions to see  if message  repetitions are
unlikely to be needed.
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r7951 | bsomervi | 2017-07-26 02:39:11 +0100 (Wed, 26 Jul 2017) | 1 line

Fix highlighting of the call first check box label
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r7952 | bsomervi | 2017-07-26 02:39:23 +0100 (Wed, 26 Jul 2017) | 1 line

Better behavior and tool tips for Txn buttons and radio buttons
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r7953 | bsomervi | 2017-07-26 02:39:30 +0100 (Wed, 26 Jul 2017) | 1 line

Auto Tx stop when calling a CQer who answers another station on your Tx frequency
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r7954 | bsomervi | 2017-07-26 11:56:12 +0100 (Wed, 26 Jul 2017) | 1 line

Add menu option to turn on AP decoding in FT8 mode
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r7955 | k9an | 2017-07-26 14:05:34 +0100 (Wed, 26 Jul 2017) | 1 line

Enable AP for any decoding level.
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r7956 | k1jt | 2017-07-26 14:44:31 +0100 (Wed, 26 Jul 2017) | 1 line

Remove obsolete test program.
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r7957 | bsomervi | 2017-07-26 22:18:59 +0100 (Wed, 26 Jul 2017) | 11 lines

Use the low confidence decode quality marker to elide spots and pass info via UDP

The UDP  decode and reply message  have been augmented with  a boolean
flag denoting a  low confidence decode when set.  Existing clients can
safely use the  reply message without passing the flag  as the default
value will  still action  messages that have  high confidence.  If low
confidence decodes  are to be passed  back via the reply  message then
the low  confidence flag must be  included and correctly set  to match
the original decode.

See NetworkMessage.hpp for message fields and meanings.
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r7958 | bsomervi | 2017-07-26 22:19:21 +0100 (Wed, 26 Jul 2017) | 3 lines

Add QSO state machine state and tx audio offset to parameters passed to slow decoders

Required to pick best AP masks in FT8 decoder
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r7959 | bsomervi | 2017-07-26 23:03:02 +0100 (Wed, 26 Jul 2017) | 1 line

Extend grids looked up from CALL3.TXT from 4 to 6-digits if first 4 match
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r7960 | k9an | 2017-07-27 16:35:40 +0100 (Thu, 27 Jul 2017) | 1 line

nQSOProgress now controls AP decoding. Needs testing - may not be stable with AP enabled.
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r7961 | k9an | 2017-07-27 19:07:54 +0100 (Thu, 27 Jul 2017) | 1 line

Correct some logic so that AP is only on when selected and so that AP decodes of type 4 or greater are limited to the vicinity of nfqso or nftx.
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r7962 | k1jt | 2017-07-27 19:57:53 +0100 (Thu, 27 Jul 2017) | 2 lines

Remove unused arguments from the call to fix_contest_msg().

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r7963 | k1jt | 2017-07-27 21:17:30 +0100 (Thu, 27 Jul 2017) | 1 line

Working on some features for NA VHF contests.  Not finished!
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r7964 | bsomervi | 2017-07-28 01:00:42 +0100 (Fri, 28 Jul 2017) | 1 line

Fix syntax error in statement function definition
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r7965 | bsomervi | 2017-07-28 02:20:22 +0100 (Fri, 28 Jul 2017) | 6 lines

Revert "Extend grids looked up from CALL3.TXT from 4 to 6-digits if first 4 match"

Bad idea, need to  find a better way to extend  grids to 6-digits from
CALL3.TXT.

This reverts commit r7959
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r7968 | k9an | 2017-07-28 16:35:17 +0100 (Fri, 28 Jul 2017) | 1 line

Comment out diagnostic write to lun 81.
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r7969 | k1jt | 2017-07-28 16:50:13 +0100 (Fri, 28 Jul 2017) | 2 lines

Make 72-bit "contest mode" available in FT8 as well as MSK144.

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r7970 | bsomervi | 2017-07-29 00:25:32 +0100 (Sat, 29 Jul 2017) | 7 lines

Change tolerances for auto stop and auto-sequence of some messages

FT8 auto-stop  will only react to  messages within +/- 50Hz  of our Tx
frequency.

Auto-sequence on  "DE ..." and free  text 73 messages will  respond if
they are within 25Hz of our Tx or Rx frequency.
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r7971 | bsomervi | 2017-07-31 02:28:25 +0100 (Mon, 31 Jul 2017) | 1 line

Add extra hidden string length argument to genft8 interface
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r7972 | bsomervi | 2017-07-31 02:28:33 +0100 (Mon, 31 Jul 2017) | 5 lines

Fix FT8 call first behaviour with "Lock Tx=Rx"

Call first combined with "Lock Tx=Rx" (why would anyone consider doing
that!)   should continue  on the  Tx  frequency of  the station  being
worked and not be switched another calling station's frequency.
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r7973 | k1jt | 2017-08-01 19:01:27 +0100 (Tue, 01 Aug 2017) | 1 line

Utility for generating figure for QST/RadCom article.
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r7974 | k1jt | 2017-08-01 19:16:01 +0100 (Tue, 01 Aug 2017) | 2 lines

Tidy up some details for 72-bit contest mode in FT8.

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r7975 | k1jt | 2017-08-01 19:46:12 +0100 (Tue, 01 Aug 2017) | 2 lines

Don't highlight FT8 contest-mode Tx3 message as a free-text message.

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r7976 | k1jt | 2017-08-01 20:32:54 +0100 (Tue, 01 Aug 2017) | 2 lines

Fix the "F4" shortcut description; add usage advuice to "Lock Tx=Rx" tool tip.

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r7980 | k1jt | 2017-08-02 15:05:37 +0100 (Wed, 02 Aug 2017) | 2 lines

Enable "nagain" for FT8, as in other modes.

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r7987 | k1jt | 2017-08-02 20:23:42 +0100 (Wed, 02 Aug 2017) | 2 lines

Updates to the WSJT-X User Guide for Version 1.8.

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r7988 | k1jt | 2017-08-02 20:27:43 +0100 (Wed, 02 Aug 2017) | 2 lines

Add several new screen shots.

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r7989 | k1jt | 2017-08-02 21:43:06 +0100 (Wed, 02 Aug 2017) | 2 lines

Allow auto-seq in QRA64 mode; updates to User Guide.

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r7992 | bsomervi | 2017-08-03 12:23:07 +0100 (Thu, 03 Aug 2017) | 7 lines

Fix an issue with VFO tuning while running Doppler correction

Holding down  the SHIFT  key while  tuning the  rig should  update the
nominal  sked frequency,  not holding  done the  SHIFT key  should not
update the  sked frequency. This  is not  yet perfect and  sometimes a
change to the nominal sked frequency can  get through but it is a rare
as yet unfound race condition.
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r7993 | k9an | 2017-08-03 15:46:21 +0100 (Thu, 03 Aug 2017) | 1 line

1. Use norder=3 for nagain, 2. Renumber aptypes.
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r7994 | k1jt | 2017-08-03 15:48:59 +0100 (Thu, 03 Aug 2017) | 2 lines

Remove the "Weak" checkbox from GUI, it's not implemented. 

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r7995 | k1jt | 2017-08-03 16:12:30 +0100 (Thu, 03 Aug 2017) | 2 lines

More updates to the WSJT-X User Guide.

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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx-1.8@7996 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-08-03 16:42:10 +00:00

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// Status=review
=== Standard Exchange
By longstanding tradition, a minimally valid QSO requires the exchange
of callsigns, a signal report or some other information, and
acknowledgments. _WSJT-X_ is designed to facilitate making such
minimal QSOs using short, structured messages. The process works best
if you use these formats and follow standard operating practices. The
recommended basic QSO goes something like this:
CQ K1ABC FN42 #K1ABC calls CQ
K1ABC G0XYZ IO91 #G0XYZ answers
G0XYZ K1ABC 19 #K1ABC sends report
K1ABC G0XYZ R-22 #G0XYZ sends R+report
G0XYZ K1ABC RRR #K1ABC sends RRR
K1ABC G0XYZ 73 #G0XYZ sends 73
*Standard messages* consist of two callsigns (or CQ, QRZ, or DE and
one callsign) followed by the transmitting stations grid locator, a
signal report, R plus a signal report, or the final acknowledgements
RRR or 73. These messages are compressed and encoded in a highly
efficient and reliable way. In uncompressed form (as displayed
on-screen) they may contain as many as 22 characters.
*Signal reports* are specified as signal-to-noise ratio (S/N) in dB,
using a standard reference noise bandwidth of 2500 Hz. Thus, in the
example message above, K1ABC is telling G0XYZ that his
signal is 19 dB below the noise power in bandwidth 2500 Hz. In the
message at 0004, G0XYZ acknowledges receipt of that report and
responds with a 22 dB signal report. JT65 reports are constrained to
lie in the range 30 to 1 dB, and values are significantly compressed
above about -10 dB. JT9 supports the extended range 50 to +49 dB and
assigns more reliable numbers to relatively strong signals.
NOTE: Signals become visible on the waterfall around S/N = 26 dB
and audible (to someone with very good hearing) around 15
dB. Thresholds for decodability are around -23 dB for JT4, 24 dB for
JT65, 26 dB for JT9.
=== Free-Text Messages
Users often add some friendly chit-chat at the end of a QSO.
Free-format messages such as "`TNX ROBERT 73`" or "`5W VERT 73 GL`"
are supported, up to a maximum of 13 characters, including spaces. In
general you should avoid the character / in free-text messages, as the
program may then try to interpret your construction as part of a
compound callsign. It should be obvious that the JT4, JT9, and JT65
protocols are not designed or well suited for extensive conversations
or rag-chewing.
=== Auto-Sequencing
The slow modes JT4, JT9, JT65, and QRA64 allow nearly 10 seconds at
the end of each one-minute receiving sequence in which you can inspect
decoded messages and decide how to reply. With its 15-second T/R
cycles, FT8 allows only about two seconds for this task. For this
reason a basic auto-sequencing feature is offered. Check *Auto Seq*
on the main window to enable this feature:
image::auto-seq.png[align="center",alt="AutoSeq"]
When calling CQ you may also choose to check the box *Call 1st*.
_WSJT-X_ will then respond automatically to the first decoded
responder to your CQ.
TIP: When *Auto-Seq* is enabled the program will de-activate *Enable
Tx* at the end of each QSO. We do not want _WSJT-X_ to make fully
automated QSOs.
[[COMP-CALL]]
=== Compound Callsigns
Compound callsigns such as xx/K1ABC or K1ABC/x are handled in
one of two possible ways:
.Messages containing Type 1 compound callsigns
A list of about 350 of the most common prefixes and suffixes can be
displayed from the *Help* menu. A single compound callsign involving
one item from this list can be used in place of the standard third
word of a message (normally a locator, signal report, RRR, or 73).
The following examples are all acceptable messages containing *Type 1*
compound callsigns:
CQ ZA/K1ABC
CQ K1ABC/4
ZA/K1ABC G0XYZ
G0XYZ K1ABC/4
The following messages are _not_ valid, because a third word is not
permitted in any message containing a *Type 1* compound callsign:
ZA/K1ABC G0XYZ -22 #These messages are invalid; each would
G0XYZ K1ABC/4 73 # be sent without its third "word"
A QSO between two stations using *Type 1* compound-callsign messages
might look like this:
CQ ZA/K1ABC
ZA/K1ABC G0XYZ
G0XYZ K1ABC 19
K1ABC G0XYZ R22
G0XYZ K1ABC RRR
K1ABC G0XYZ 73
Notice that the full compound callsign is sent and received in the
first two transmissions. After that, the operators omit the add-on
prefix or suffix and use the standard structured messages.
.Type 2 Compound-Callsign Messages
Prefixes and suffixes _not_ found in the displayable short list are
handled by using *Type 2* compound callsigns. In this case the
compound callsign must be the second word in a two- or three-word
message, and the first word must be CQ, DE, or QRZ. Prefixes can be 1
to 4 characters, suffixes 1 to 3 characters. A third word conveying a
locator, report, RRR, or 73 is permitted. The following are valid
messages containing *Type 2* compound callsigns:
CQ W4/G0XYZ FM07
QRZ K1ABC/VE6 DO33
DE W4/G0XYZ FM18
DE W4/G0XYZ -22
DE W4/G0XYZ R-22
DE W4/G0XYZ RRR
DE W4/G0XYZ 73
In each case, the compound callsign is treated as *Type 2* because the
add-on prefix or suffix is _not_ one of those in the fixed list. Note
that a second callsign is never permissible in these messages.
TIP: During a transmission your outgoing message is displayed in the
first label on the *Status Bar* and shown exactly as another station
will receive it. You can check to see that you are actually
transmitting the message you wish to send.
QSOs involving *Type 2* compound callsigns might look like either
of the following sequences:
CQ K1ABC/VE1 FN75
K1ABC G0XYZ IO91
G0XYZ K1ABC 19
K1ABC G0XYZ R22
G0XYZ K1ABC RRR
K1ABC/VE1 73
CQ K1ABC FN42
DE G0XYZ/W4 FM18
G0XYZ K1ABC 19
K1ABC G0XYZ R22
G0XYZ K1ABC RRR
DE G0XYZ/W4 73
Operators with a compound callsign use its full form when calling CQ
and possibly also in a 73 transmission, as may be required by
licensing authorities. Other transmissions during a QSO may use the
standard structured messages without callsign prefix or suffix.
TIP: If you are using a compound callsign, you may want to
experiment with the option *Message generation for type 2 compound
callsign holders* on the *Settings | General* tab, so that messages
will be generated that best suit your needs.
=== Pre-QSO Checklist
Before attempting your first QSO with one of the WSJT modes, be sure
to go through the <<TUTORIAL,Basic Operating Tutorial>> above as well
as the following checklist:
- Your callsign and grid locator set to correct values
- PTT and CAT control (if used) properly configured and tested
- Computer clock properly synchronized to UTC within ±1 s
- Radio set to *USB* (upper sideband) mode
- Radio filters centered and set to widest available passband (up to 5 kHz).
TIP: Remember that in many circumstances FT8, JT4, JT9, JT65, and WSPR
do not require high power. Under most HF propagation conditions, QRP
is usually the norm.