46 lines
1.2 KiB
Plaintext
46 lines
1.2 KiB
Plaintext
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subroutine genwspr_fsk8(msg,msgsent,itone)
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! Encode a WSPR-LF 8-FSK message, producing array itone().
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use crc
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include 'wspr_fsk8_params.f90'
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character*22 msg,msgsent
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character*60 cbits
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integer*1,target :: idat(9)
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integer*1 msgbits(KK),codeword(3*ND)
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integer itone(NN)
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integer icos7(0:6)
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data icos7/2,5,6,0,4,1,3/ !Costas 7x7 tone pattern
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idat=0
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call wqencode(msg,ntype0,idat) !Source encoding
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id7=idat(7)
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if(id7.lt.0) id7=id7+256
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id7=id7/64
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icrc=crc10(c_loc(idat),9) !Compute the 10-bit CRC
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idat(8)=icrc/256 !Insert CRC into idat(8:9)
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idat(9)=iand(icrc,255)
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call wqdecode(idat,msgsent,itype)
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write(cbits,1004) idat(1:6),id7,icrc
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1004 format(6b8.8,b2.2,b10.10)
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read(cbits,1006) msgbits
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1006 format(60i1)
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! call chkcrc10(msgbits,nbadcrc)
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! print*,msgsent,itype,crc10_check(c_loc(idat),9),nbadcrc
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call encode300(msgbits,codeword) !Encode the test message
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! Message structure: S7 D100 S7
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itone(1:7)=icos7
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itone(NN-6:NN)=icos7
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do j=1,ND
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i=3*j -2
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itone(j+7)=codeword(i)*4 + codeword(i+1)*2 + codeword(i+2)
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enddo
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return
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end subroutine genwspr_fsk8
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