Commit Graph

5204 Commits

Author SHA1 Message Date
Steve Franke
60cb4a33aa Re-enable second sync pass. 2019-02-05 19:53:53 -06:00
Steve Franke
71cb6d9f50 Use 4 different Costas arrays to prevent false syncs as received frames move
through the analysis window.

Add a random 77-bit vector to each message so that tone transitions occur
even if the message contains a long string of 0 or 1 (like a CQ).

Add alternative sync calculation as an option (sync2), for testing.

Add basic framework for AP decoding.
2019-02-05 19:18:50 -06:00
Bill Somerville
4dfc4685e9 Make the UDP protocol Clear (3) message two-way
External servers can clear either or  both of the Band Activity and Rx
Frequency decodes windows. This was  requested by Dave, AA6YQ, so that
DX Lab  Suite applications can  clear old  decodes on band  changes to
ensure that decode highlighing is consistent.
2019-02-03 00:49:35 +00:00
Steve Franke
91e3dbdf20 New scheme for finding candidates. Speed up sync. Improved SNR calibration. 2019-02-02 16:29:17 -06:00
Bill Somerville
846918e3aa Remove normal mouse double-click action for decode display windows
The normal  action selects the word  under the mouse pointer  and this
disrupts   callsign  highlighting.    Normal  single-click   selection
behaviour is unchanged  so text can still be selected  using the mouse
and copied if desired.
2019-02-02 20:38:56 +00:00
Steve Franke
40fd3f6551 Make writing to data_dir work on the Mac. 2019-02-02 11:04:11 -06:00
Joe Taylor
22209030e2 Move files all_ft4.txt and clockit.out to the data_dir directory. 2019-02-01 11:56:08 -05:00
Joe Taylor
98d665c678 Add subroutine clockit() and use it for profiling ft4_decode(). 2019-02-01 10:47:47 -05:00
Joe Taylor
9c2700128c Generation of FT4 Tx waveform from itone() moved to a separate subroutine. 2019-01-31 16:07:07 -05:00
Joe Taylor
b32799d2b8 Add xdt to lines printed by ft4sim_mult. 2019-01-31 14:06:05 -05:00
Joe Taylor
04f085bb24 Proper handling of multiple decodes from one call to ft4_decode. 2019-01-31 13:55:21 -05:00
Joe Taylor
a80b955fe7 Decode FT4 over the full frequency range displayed in waterfall. 2019-01-31 12:10:58 -05:00
Joe Taylor
0dd4577143 Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-01-31 11:38:55 -05:00
Joe Taylor
7ae1210266 Fix several flaws in the waveforms generated by ft4sim_mult. 2019-01-31 11:37:54 -05:00
Steve Franke
fdb84c0e63 Fix an off-by-one error. 2019-01-30 19:19:38 -06:00
Joe Taylor
9f909b6b1b Oops, I left garbage in the file. 2019-01-30 15:49:52 -05:00
Joe Taylor
1261434e84 Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-01-30 15:37:38 -05:00
Joe Taylor
189f538dc0 Add ft4sim_mult, which is basically functional. 2019-01-30 15:33:47 -05:00
Steve Franke
66bb999126 Improve ft4_downsample filter. Improve getcandidates4. 2019-01-30 12:47:01 -06:00
Joe Taylor
3f7fb38e81 More code cleanup -- just comments and formatting. 2019-01-30 12:22:41 -05:00
Joe Taylor
2888c05eff Code cleanup. 2019-01-30 11:20:29 -05:00
Bill Somerville
4920a6aeee Remove temporary FT8 v2 working frequencies from defaults list 2019-01-30 11:10:02 +00:00
Steve Franke
e57df307dd Fix a comment. 2019-01-29 15:42:30 -06:00
Joe Taylor
a7ded94313 Saved FT4 files must be at least 5 s long; Shift+F6 now works for FT4 files. 2019-01-29 15:24:08 -05:00
Joe Taylor
e11acde9fb Better handling of calls to ft4_decode(), depending on ring-buffer pointer. 2019-01-29 14:19:22 -05:00
Joe Taylor
7e3b153d8b Correct the estimate of SNR for FT4 signals. 2019-01-29 13:56:04 -05:00
Joe Taylor
0a6d67c1d6 Make the simulated data files slightly longer so that WSJT-X can decode them. 2019-01-29 13:55:04 -05:00
Joe Taylor
3ab7c1edf6 Don't logQSO or transmit in response to a decode from disk. 2019-01-29 13:19:36 -05:00
Joe Taylor
65398bbffa Fix the UTC display on waterfall, for FT4 mode. 2019-01-29 12:12:54 -05:00
Joe Taylor
6d6e2e8314 Don't try to transmit a blank FT4 message! 2019-01-29 11:49:11 -05:00
Joe Taylor
e98231d4c1 Correct the call to genft4(); fix the displayed time for data from disk. 2019-01-29 10:39:34 -05:00
Joe Taylor
7a9240c9ef Basic saving of .wav files for FT4. 2019-01-28 15:58:14 -05:00
Joe Taylor
d5203e2da9 Code cleanup. 2019-01-28 14:20:32 -05:00
Joe Taylor
2e4035c8bb Insert red line on waterfall to mark an FT4 transmission. 2019-01-28 13:50:23 -05:00
Joe Taylor
7da4fc63a6 Add freq markers for FT4 to Wide Graph. Tentative default FT4 freqs for 40m and 20m. 2019-01-28 11:07:52 -05:00
Joe Taylor
6e4f0f32ee Remove FT2; implement basic functionality in FT4. 2019-01-28 10:19:46 -05:00
Steve Franke
d3b1f7e560 Prevent some out-of-bounds problems. 2019-01-27 19:28:41 -06:00
Steve Franke
57cf69e6ad First cut at identifying multiple candidates for decoding. Needs work. 2019-01-27 19:19:47 -06:00
Steve Franke
134da155b6 Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-01-26 23:04:00 -06:00
Steve Franke
613bfaf3ee Change ft4 to use (174,91) code and 512 Sa/symbol. 2019-01-26 23:03:54 -06:00
Bill Somerville
9b942910e0 Allow for tx periods shorter than the audio buffer size
Audio will not start until at least one buffer full is achieved and as
we use a large target latency of 2s to minimize CPU usage and glitches
we must pad with silence when  the QAudioOutput pulls buffers from the
Modulator i/o device. This is  all necessary with pulseaudio using the
underlying o/s ALSA device, i.e. on Linux.
2019-01-27 00:50:25 +00:00
Steve Franke
d9f4a27a3e Create ft4_decode.f90. Change stand-alone decoder ft4d.f90 to use ft4_decode.f90. 2019-01-26 11:42:07 -06:00
Steve Franke
c52f755afc Make Watterson simulator causal. 2019-01-25 16:26:13 -06:00
Steve Franke
9fa08d3838 Un-hardwire sync. 2019-01-25 16:06:45 -06:00
Steve Franke
8baf48701e Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2 2019-01-25 16:01:42 -06:00
Steve Franke
66e3f11fba Add ft4 files in lib/ft4. 2019-01-25 16:01:34 -06:00
Joe Taylor
f6e3dbb8e9 Increase the FT2 Tx duration timer from 2200 to 2500 ms. 2019-01-25 16:52:38 -05:00
Joe Taylor
5efa28164c Remove a redundant file reference in CMakeLists.txt. Fix call to unpck77 in genft2.f90 2019-01-25 14:46:17 -05:00
Joe Taylor
a0ddc1485e Make the ProgressBar invisible in FT2 mode. 2019-01-24 17:29:03 -05:00
Joe Taylor
edf4af5307 Be sure to set start time of QSO. 2019-01-24 15:58:08 -05:00