Joe Taylor
c2cb55a68a
Reduce FT4 chunk size fro 500 to 288 ms; suppress duplicate decodes from close to chunk ends.
2019-02-13 14:42:57 -05:00
Steve Franke
186482811a
Use 91 bits for RR73 messages.
2019-02-09 16:08:39 -06:00
Steve Franke
b415faae20
Remove char(0) from mycall and hiscall.
2019-02-08 16:44:18 -06:00
Steve Franke
0f03d02e74
Merge branch 'feat-ft2' of bitbucket.org:k1jt/wsjtx into feat-ft2
2019-02-08 15:17:52 -06:00
Steve Franke
33498cc10f
Disable AP if ncontest=5 or 6 (Fox and Hound).
2019-02-08 15:17:46 -06:00
Steven Franke
7d70c5e9e1
Still trying to make data_dir work under all conditions. This makes it work with ft4d.
2019-02-08 11:24:22 -06:00
Steve Franke
e3830dcb27
Remove temporary indent file.
2019-02-07 18:52:51 -06:00
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
Steve Franke
91e3dbdf20
New scheme for finding candidates. Speed up sync. Improved SNR calibration.
2019-02-02 16:29:17 -06:00
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
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
