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Modify packjt77 to encode and decode 50-bit WSPR messages. For now, results are the first 50 bits of c77, and we're using subtype i3.n3=0.6.

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This commit is contained in:
Joe Taylor 2020-04-14 15:40:11 -04:00
parent 7d941ba67f
commit af4de10055
1 changed files with 39 additions and 31 deletions
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68
lib/77bit/packjt77.f90
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@ -352,10 +352,16 @@ subroutine unpack77(c77,nrx,msg,unpk77_success)
msg=adjustl(msg)
else if(i3.eq.0 .and. n3.eq.6) then
read(c77(70:71),'(b2)') j2
read(c77(50:50),'(b1)') j2a
j2b=0
if(j2a.eq.0) read(c77(49:49),'(b1)') j2b
j2=2*j2a+j2b
print*,'bbb',j2a,j2b,j2
if(j2.eq.0) then
read(c77,2010) n28,igrid4,idbm,iap
2010 format(b28.28,b15.15,b6.6,b19.19)
! WSPR Type 1
read(c77,2010) n28,igrid4,idbm
2010 format(b28.28,b15.15,b5.5)
idbm=nint(idbm*10.0/3.0)
call unpack28(n28,call_1,unpk28_success)
if(.not.unpk28_success) unpk77_success=.false.
call to_grid4(igrid4,grid4)
@ -363,8 +369,19 @@ subroutine unpack77(c77,nrx,msg,unpk77_success)
msg=trim(call_1)//' '//grid4//' '//trim(adjustl(crpt))
else if(j2.eq.1) then
read(c77,2020) n28,npfx,idbm,iap
2020 format(b28.28,b16.16,b6.6,b19.19)
! WSPR Type 2
read(c77,2030) n28,igrid6
2030 format(b22.22,b25.25)
call unpack28(n28,call_1,unpk28_success)
if(.not.unpk28_success) unpk77_success=.false.
call to_grid6(igrid6,grid6)
msg=trim(call_1)//' '//grid6
else if(j2.eq.2) then
! WSPR Type 3
read(c77,2020) n28,npfx,idbm
2020 format(b28.28,b16.16,b5.5)
idbm=nint(idbm*10.0/3.0)
call unpack28(n28,call_1,unpk28_success)
if(.not.unpk28_success) unpk77_success=.false.
write(crpt,'(i3)') idbm
@ -393,14 +410,6 @@ subroutine unpack77(c77,nrx,msg,unpk77_success)
msg=trim(call_1)//'/'//trim(adjustl(cpfx))//' '//trim(adjustl(crpt))
endif
else if(j2.eq.2) then
read(c77,2030) n28,igrid6,iap
2030 format(b22.22,b25.25,b19.19)
call unpack28(n28,call_1,unpk28_success)
if(.not.unpk28_success) unpk77_success=.false.
call to_grid6(igrid6,grid6)
msg=trim(call_1)//' '//grid6
endif
else if(i3.eq.1 .or. i3.eq.2) then
@ -992,18 +1001,18 @@ subroutine pack77_06(nwords,w,i3,n3,c77)
n3=6
call pack28(w(1),n28)
grid4=w(2)(1:4)
j1=(ichar(grid4(1:1))-ichar('A'))*18*10*10
j2=(ichar(grid4(2:2))-ichar('A'))*10*10
j3=(ichar(grid4(3:3))-ichar('0'))*10
j4=(ichar(grid4(4:4))-ichar('0'))
igrid4=j1+j2+j3+j4
k1=(ichar(grid4(1:1))-ichar('A'))*18*10*10
k2=(ichar(grid4(2:2))-ichar('A'))*10*10
k3=(ichar(grid4(3:3))-ichar('0'))*10
k4=(ichar(grid4(4:4))-ichar('0'))
igrid4=k1+k2+k3+k4
read(w(3),*) idbm
if(idbm.lt.0) idbm=0
if(idbm.gt.63) idbm=63
iap=0
j2=0
write(c77,1010) n28,igrid4,idbm,iap,0,j2,n3,i3
1010 format(b28.28,b15.15,b6.6,b19.19,b1.1,b2.2,2b3.3)
if(idbm.gt.60) idbm=60
idbm=nint(0.3*idbm)
print*,'aaa',idbm
write(c77,1010) n28,igrid4,idbm,0,0,0,n3,i3
1010 format(b28.28,b15.15,b5.5,2i1,b21.21,2b3.3)
go to 900
endif
if(nwords.eq.2 .and. m1.ge.5 .and. m1.le.10 .and. m2.le.2) then
@ -1037,13 +1046,13 @@ subroutine pack77_06(nwords,w,i3,n3,c77)
endif
i3=0
n3=6
j2=1
call pack28(bcall//' ',n28)
read(w(2),*) idbm
if(idbm.lt.0) idbm=0
if(idbm.gt.63) idbm=63
write(c77,1020) n28,npfx,idbm,iap,j2,n3,i3
1020 format(b28.28,b16.16,b6.6,b19.19,b2.2,2b3.3)
if(idbm.gt.60) idbm=60
idbm=nint(0.3*idbm)
write(c77,1020) n28,npfx,idbm,1,0,n3,i3
1020 format(b28.28,b16.16,b5.5,i1,b21.21,2b3.3)
go to 900
endif
@ -1054,7 +1063,6 @@ subroutine pack77_06(nwords,w,i3,n3,c77)
if(.not.is_grid6(grid6)) go to 900
i3=0
n3=6
j2=2
call pack28(w(1),n28)
k1=(ichar(grid6(1:1))-ichar('A'))*18*10*10*24*24
k2=(ichar(grid6(2:2))-ichar('A'))*10*10*24*24
@ -1063,8 +1071,8 @@ subroutine pack77_06(nwords,w,i3,n3,c77)
k5=(ichar(grid6(5:5))-ichar('A'))*24
k6=(ichar(grid6(6:6))-ichar('A'))
igrid6=k1+k2+k3+k4+k5+k6
write(c77,1030) n28,igrid6,iap,0,j2,n3,i3
1030 format(b22.22,b25.25,b19.19,b3.3,b2.2,2b3.3)
write(c77,1030) n28,igrid6,2,0,n3,i3
1030 format(b22.22,b25.25,b3.3,b21.21,2b3.3)
endif
900 return