93 lines
2.6 KiB
Fortran
93 lines
2.6 KiB
Fortran
subroutine fox_tx(maxtimes,fail,called,gcalled,hm,fm,ntimes,log,logit)
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! Determine fm, the next message for Fox to transmit in this slot
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character*32 fm
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character*22 hm
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character*4 g4,MyGrid,gcalled,gx,gy
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character*6 MyCall,called,cx,cy
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character*16 log
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logical isgrid,logit
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data MyCall/'KH1DX'/,MyGrid/'AJ10'/
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save
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isgrid(g4)=g4(1:1).ge.'A' .and. g4(1:1).le.'R' .and. g4(2:2).ge.'A' .and. &
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g4(2:2).le.'R' .and. g4(3:3).ge.'0' .and. g4(3:3).le.'9' .and. &
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g4(4:4).ge.'0' .and. g4(4:4).le.'9' .and. g4(1:4).ne.'RR73'
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logit=.false.
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n=len(trim(hm))
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g4=""
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if(n.gt.8) g4=hm(n-3:n)
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call random_number(r)
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if(r.lt.fail .and. .not.isgrid(g4)) hm="" !Fox failed to copy
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i2=len(trim(hm))
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if(i2.gt.10) then
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i1=index(hm,' ')
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i3=index(hm(i1+1:),' ') + i1
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cx=hm(i1+1:i3)
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gx=hm(i2-3:i2)
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i4=index(hm,MyCall)
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! Check for a new caller
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if(i4.eq.1 .and. isgrid(gx)) then
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call random_number(r)
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isent=nint(-20+40*r)
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write(fm,1002) cx,MyCall,isent
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1002 format(a6,1x,a6,i4.2)
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if(fm(15:15).eq.' ') fm(15:15)='+'
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called=cx
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gcalled=gx
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endif
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log=''
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! Check for message with R+rpt
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if(i4.eq.1 .and. cx.eq.called .and. &
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(index(hm,'R+').ge.8 .or. index(hm,'R-').ge.8)) then
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write(log,1006) called,gcalled,isent !Format a log entry
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1006 format(a6,2x,a4,i4.2)
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if(log(14:14).eq.' ') log(14:14)='+'
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logit=.true.
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call dxped_fifo(cy,gy,isnry)
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! If FIFO is empty we should call CQ in this slot
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ntimes=1
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write(fm,1008) cx,cy,isnry
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1008 format(a6,' RR73; ',a6,1x,'<KH1DX>',i4.2)
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if(fm(29:29).eq.' ') fm(29:29)='+'
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called=cy
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gcalled=gy
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endif
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endif
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if(hm.eq.'') then
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if(fm(1:3).ne.'CQ ') then
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! if(ntimes.lt.maxtimes) then
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ntimes=ntimes+1
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! else
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! ntimes=1
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! If FIFO is empty we should call CQ in this slot
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! call dxped_fifo(cy,gy,isnry)
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! call random_number(r)
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! isnr=nint(-20+40*r)
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! write(fm,1010) cy,gy,isnr
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write(fm,1010) called,MyCall,isent
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1010 format(a6,1x,a6,i4.2)
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if(fm(15:15).eq.' ') fm(15:15)='+'
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! endif
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endif
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endif
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! Collapse multiple blanks in message
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iz=len(trim(fm))
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do iter=1,5
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ib2=index(fm(1:iz),' ')
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if(ib2.lt.1) exit
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fm=fm(1:ib2)//fm(ib2+2:)
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iz=iz-1
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enddo
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! Generate waveform for fm
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return
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end subroutine fox_tx
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