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Reconfigure foxgen.f90 for 77bit messages. Fox now transmits only 77bit messages.
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@ -14,25 +14,20 @@ subroutine foxgen()
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! common/foxcom/. The generated wave(NWAVE) is passed back in the same
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! common block.
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use crc
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parameter (NN=79,ND=58,KK=87,NSPS=4*1920)
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parameter (NN=79,ND=58,NSPS=4*1920)
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parameter (NWAVE=NN*NSPS,NFFT=614400,NH=NFFT/2)
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character*40 cmsg
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character*37 msg,msgsent
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character*87 cbits
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character*88 cb88
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integer itone(NN)
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integer icos7(0:6)
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integer*1 msgbits(KK),codeword(3*ND),msgbits2
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integer itone(79)
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integer*1 msgbits(77),msgbits2
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integer*1, target:: i1Msg8BitBytes(11)
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integer*1, target:: mycall
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real x(NFFT)
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real*8 dt,twopi,f0,fstep,dfreq,phi,dphi
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complex cx(0:NH)
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common/foxcom/wave(NWAVE),nslots,nfreq,i3bit(5),cmsg(5),mycall(12)
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common/foxcom2/itone2(NN),msgbits2(KK)
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common/foxcom2/itone2(NN),msgbits2(77)
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equivalence (x,cx),(y,cy)
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data icos7/2,5,6,0,4,1,3/ !Costas 7x7 tone pattern
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fstep=60.d0
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dfreq=6.25d0
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@ -43,51 +38,11 @@ subroutine foxgen()
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wave=0.
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do n=1,nslots
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i3b=i3bit(n)
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if(i3b.eq.0) then
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msg=cmsg(n)(1:22) !Standard FT8 message
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else
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i1=index(cmsg(n),' ') !Special Fox message
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i2=index(cmsg(n),';')
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i3=index(cmsg(n),'<')
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i4=index(cmsg(n),'>')
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msg=cmsg(n)(1:i1)//cmsg(n)(i2+1:i3-2)//' '
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read(cmsg(n)(i4+2:i4+4),*) irpt
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endif
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call genft8(msg,0,1,1,msgsent,msgbits,itone)
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! print*,'Foxgen:',n,cmsg(n),msgsent
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msg=cmsg(n)(1:37)
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call genft8_174_91(msg,i3,n3,msgsent,msgbits,itone)
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print*,'Foxgen:',n,msg,msgsent,i3,n3
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write(*,'(77i1)') msgbits
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if(i3b.eq.1) then
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icrc10=crc10(c_loc(mycall),12)
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nrpt=irpt+30
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write(cbits,1001) msgbits(1:56),icrc10,nrpt,i3b,0
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1001 format(56b1.1,b10.10,b6.6,b3.3,b12.12)
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read(cbits,1002) msgbits
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1002 format(87i1)
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cb88=cbits//'0'
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read(cb88,1003) i1Msg8BitBytes(1:11)
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1003 format(11b8)
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icrc12=crc12(c_loc(i1Msg8BitBytes),11)
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write(cbits,1001) msgbits(1:56),icrc10,nrpt,i3b,icrc12
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read(cbits,1002) msgbits
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call encode174(msgbits,codeword) !Encode the test message
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! Message structure: S7 D29 S7 D29 S7
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itone(1:7)=icos7
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itone(36+1:36+7)=icos7
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itone(NN-6:NN)=icos7
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k=7
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do j=1,ND
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i=3*j -2
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k=k+1
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if(j.eq.30) k=k+7
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itone(k)=codeword(i)*4 + codeword(i+1)*2 + codeword(i+2)
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enddo
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endif
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! Make copies of itone() and msgbits() for ft8sim
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itone2=itone
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msgbits2=msgbits
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@ -1,6 +1,6 @@
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subroutine foxgen_wrap(msg40,msgbits,itone)
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parameter (NN=79,ND=58,KK=87,NSPS=4*1920)
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parameter (NN=79,ND=58,KK=77,NSPS=4*1920)
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parameter (NWAVE=NN*NSPS)
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character*40 msg40,cmsg
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@ -17,7 +17,8 @@ subroutine genft8_174_91(msg,i3,n3,msgsent,msgbits,itone)
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i3=-1
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n3=-1
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call pack77(msg,i3,n3,c77)
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call unpack77(c77,msgsent,unpk77_success)
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read(c77,'(77i1)',err=1) msgbits
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go to 2
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1 write(81,*) msg,c77 ; flush(81)
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