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https://github.com/saitohirga/WSJT-X.git
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53 lines
1.1 KiB
Fortran
53 lines
1.1 KiB
Fortran
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subroutine genwave(itone,nsym,nsps,nwave,fsample,hmod,f0,icmplx,cwave,wave)
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real wave(nwave)
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complex cwave(nwave)
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integer hmod
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integer itone(nsym)
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logical ex
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real*8 dt,phi,dphi,twopi,freq,baud
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dt=1.d0/fsample
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twopi=8.d0*atan(1.d0)
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baud=fsample/nsps
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! Calculate the audio waveform
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phi=0.d0
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if(icmplx.le.0) wave=0.
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if(icmplx.eq.1) cwave=0.
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k=0
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do j=1,nsym
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freq=f0 + itone(j)*hmod*baud
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dphi=twopi*freq*dt
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do i=1,nsps
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k=k+1
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if(icmplx.eq.1) then
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cwave(k)=cmplx(cos(phi),sin(phi))
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else
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wave(k)=sin(phi)
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endif
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phi=phi+dphi
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if(phi.gt.twopi) phi=phi-twopi
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enddo
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enddo
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!### TEMPORARY code to allow transmitting both A and B submodes
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inquire(file='Q65_Tx2',exist=ex)
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if(ex) then
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k=0
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do j=1,nsym
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freq=f0 + itone(j)*2.d0*hmod*baud + 500.d0
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dphi=twopi*freq*dt
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do i=1,nsps
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k=k+1
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wave(k)=0.5*(wave(k)+sin(phi))
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phi=phi+dphi
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if(phi.gt.twopi) phi=phi-twopi
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enddo
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enddo
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endif
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!###
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return
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end subroutine genwave
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