WSJT-X/lib/genqra64.f90
Bill Somerville dd1362b69a Rationalize NA contest mode
Generic message packing and unpacking routines now understand antipode
grid contest messages.  These messages  are now recognized as standard
messages in  message response processing and  dealt with appropriately
when contest mode is selected and applicable (currently FT8 and MSK144
only).

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8062 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-09-01 20:10:35 +00:00

58 lines
1.6 KiB
Fortran

subroutine genqra64(msg0,ichk,msgsent,itone,itype)
! Encodes a QRA64 message to yield itone(1:84)
use packjt
character*22 msg0
character*22 message !Message to be generated
character*22 msgsent !Message as it will be received
integer itone(84)
character*3 cok !' ' or 'OOO'
logical old_qra_sync
integer dgen(13)
integer sent(63)
integer icos7(0:6)
data icos7/2,5,6,0,4,1,3/ !Defines a 7x7 Costas array
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')
else
message=msg0
do i=1,22
if(ichar(message(i:i)).eq.0) then
message(i:)=' '
exit
endif
enddo
do i=1,22 !Strip leading blanks
if(message(1:1).ne.' ') exit
message=message(i+1:)
enddo
call chkmsg(message,cok,nspecial,flip)
call packmsg(message,dgen,itype,.false.) !Pack message into 72 bits
call unpackmsg(dgen,msgsent,.false.,' ') !Unpack to get message sent
if(ichk.ne.0) go to 999 !Return if checking only
call qra64_enc(dgen,sent) !Encode using QRA64
nsync=10
inquire(file='old_qra_sync',exist=old_qra_sync)
if(old_qra_sync) nsync=1
itone(1:7)=nsync*icos7 !Insert 7x7 Costas array in 3 places
itone(8:39)=sent(1:32)
itone(40:46)=nsync*icos7
itone(47:77)=sent(33:63)
itone(78:84)=nsync*icos7
endif
999 return
end subroutine genqra64