mirror of https://github.com/saitohirga/WSJT-X.git
52 lines
1.4 KiB
Fortran
52 lines
1.4 KiB
Fortran
subroutine genq65(msg0,ichk,msgsent,itone,i3,n3)
|
|
|
|
! Encodes a Q65 message to yield itone(1:85)
|
|
|
|
use packjt77
|
|
character*37 msg0 !Message to be generated
|
|
character*37 msgsent !Message as it will be received
|
|
character*77 c77
|
|
logical unpk77_success
|
|
integer itone(85) !QRA64 uses only 84
|
|
integer dgen(13)
|
|
integer sent(63)
|
|
integer isync(22)
|
|
data isync/1,9,12,13,15,22,23,26,27,33,35,38,46,50,55,60,62,66,69,74,76,85/
|
|
save
|
|
|
|
if(msg0(1:1).eq.'@') then
|
|
read(msg0(2:5),*,end=1,err=1) nfreq
|
|
go to 2
|
|
1 nfreq=1000
|
|
2 itone(1)=nfreq
|
|
write(msgsent,1000) nfreq
|
|
1000 format(i5,' Hz')
|
|
goto 999
|
|
endif
|
|
i3=-1
|
|
n3=-1
|
|
call pack77(msg0,i3,n3,c77)
|
|
read(c77(60:74),'(b15)') ng15
|
|
if(ng15.eq.32373) c77(60:74)='111111010010011' !Message is RR73
|
|
call unpack77(c77,0,msgsent,unpk77_success) !Unpack to get msgsent
|
|
read(c77,1001) dgen
|
|
1001 format(12b6.6,b5.5)
|
|
dgen(13)=2*dgen(13) !Convert 77-bit to 78-bit payload
|
|
if(ichk.eq.1) go to 999 !Return if checking only
|
|
call q65_enc(dgen,sent) !Encode message, dgen(1:13) ==> sent(1:63)
|
|
|
|
j=1
|
|
k=0
|
|
do i=1,85
|
|
if(i.eq.isync(j)) then
|
|
j=j+1 !Index for next sync symbol
|
|
itone(i)=0 !Insert sync symbol at tone 0
|
|
else
|
|
k=k+1
|
|
itone(i)=sent(k) + 1 !Q65 symbol=0 is transmitted at tone 1, etc.
|
|
endif
|
|
enddo
|
|
|
|
999 return
|
|
end subroutine genq65
|