Re: [wsjt-devel] FST4 coding

2021-02-10 Thread Alan Hopper
Hi Bill, thanks for the extra info, I noticed the padding as I added extra padding to the nearest 32 bits as I do the parity generation in 32 bit chunks. 73 Alan M0NNB On Wed, Feb 10, 2021 at 3:49 PM Bill Somerville wrote: > On 10/02/2021 15:06, Bill Somerville wrote: > > On 10/02/2021 14:40, Al

Re: [wsjt-devel] FST4 coding

2021-02-10 Thread Bill Somerville
On 10/02/2021 15:06, Bill Somerville wrote: On 10/02/2021 14:40, Alan Hopper wrote: Hi, I'm trying to write a FST4 encoder without using the source, I'm most of the way there using the excellent FT4_FT8_QEX and FST4_Quick_Start docs, the latter mentions generator_fst4.dat and  generator_fst4w.

Re: [wsjt-devel] FST4 coding

2021-02-10 Thread Alan Hopper
Hi Bill, thanks very much, that did the trick. I can now generate perfectly decodable FST4 and FST4W that decodes to something. I made a lucky guess in putting a c28 (callsign) field at the start of the FST4W packet and that works so I shall have some fun being a code unbreaker to try and fill in t

Re: [wsjt-devel] FST4 coding

2021-02-10 Thread Bill Somerville
On 10/02/2021 14:40, Alan Hopper wrote: Hi, I'm trying to write a FST4 encoder without using the source, I'm most of the way there using the excellent FT4_FT8_QEX and FST4_Quick_Start docs, the latter mentions generator_fst4.dat    and  generator_fst4w.dat which I can't find. Are these availab

[wsjt-devel] FST4 coding

2021-02-10 Thread Alan Hopper
Hi, I'm trying to write a FST4 encoder without using the source, I'm most of the way there using the excellent FT4_FT8_QEX and FST4_Quick_Start docs, the latter mentions generator_fst4.datand generator_fst4w.dat which I can't find. Are these available or can I extract those tables from the so