Commit Graph

5456 Commits

Author SHA1 Message Date
Steve Franke cbfcb76193 AP decoding basically works. Make data_dir setting work on the Mac. 2019-02-07 18:48:38 -06:00
Steve Franke ecbeda5297 Disable sync2 calculation for now. 2019-02-07 10:16:28 -06:00
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