diff --git a/lib/encode4.f90 b/lib/encode4.f90
deleted file mode 100644
index 64b9dfcdf..000000000
--- a/lib/encode4.f90
+++ /dev/null
@@ -1,20 +0,0 @@
-subroutine encode4(message,ncode)
-
-  parameter (MAXCALLS=7000,MAXRPT=63)
-  integer ncode(206)
-  character*22 message          !Message to be generated
-  character*3 cok               !'   ' or 'OOO'
-  integer dgen(13)
-  integer*1 data0(13),symbol(216)
-  logical text
-
-  call chkmsg(message,cok,nspecial,flip)
-  call packmsg(message,dgen,text)  !Pack 72-bit message into 12 six-bit symbols
-  call entail(dgen,data0)
-  call encode232(data0,206,symbol)       !Convolutional encoding
-  call interleave24(symbol,1)            !Apply JT4 interleaving
-  do i=1,206
-     ncode(i)=symbol(i)
-  enddo
-
-end subroutine encode4
diff --git a/lib/gen24.f90 b/lib/gen24.f90
deleted file mode 100644
index e2aaa77ad..000000000
--- a/lib/gen24.f90
+++ /dev/null
@@ -1,86 +0,0 @@
-subroutine gen24(message,mode4,samfac,ntxdf,iwave,nwave,sendingsh,msgsent,nmsg)
-
-! Encode a JT4 message into a wavefile.
-
-  parameter (NMAX=60*11025)     !Max length of wave file
-  character*22 message          !Message to be generated
-  character*22 msgsent          !Message as it will be received
-  character*3 cok               !'   ' or 'OOO'
-  real*8 t,dt,phi,f,f0,dfgen,dphi,pi,twopi,samfac,tsymbol
-  integer*2 iwave(NMAX)         !Generated wave file
-  integer sendingsh
-  integer dgen(13)
-  integer*1 data0(13),symbol(216)
-  logical first
-  include 'prcom2.f'
-  data first/.true./
-  save
-
-  nsym=207                               !Symbols per transmission
-  if(first) then
-     do i=1,nsym
-        pr2(i)=2*npr2(i)-1
-     enddo
-     pi=4.d0*atan(1.d0)
-     twopi=2.d0*pi
-     first=.false.
-  endif
-
-  call chkmsg(message,cok,nspecial,flip)
-  call packmsg(message,dgen)  !Pack 72-bit message into 12 six-bit symbols
-  call entail(dgen,data0)
-  call unpackmsg(dgen,msgsent)
-
-  nbytes=(72+31+7)/8
-  call encode(data0,nbytes,symbol(2))    !Convolutional encoding
-  symbol(1)=0                            !Reference phase
-  sendingsh=0
-  if(iand(dgen(10),8).ne.0) sendingsh=-1 !Plain text flag
-  call interleave24(symbol(2),1)         !Apply JT4 interleaving
-
-! Set up necessary constants
-  tsymbol=2520.d0/11025.d0
-  dt=1.d0/(samfac*11025.d0)
-  f0=118*11025.d0/1024 + ntxdf
-  dfgen=11025.d0/2520                     !4.375 Hz
-  t=0.d0
-  phi=0.d0
-  j0=0
-  ndata=(nsym*11025.d0*samfac*tsymbol)/2
-  ndata=2*ndata
-  do i=1,ndata
-     t=t+dt
-     j=int(t/tsymbol) + 1   !Symbol number, 1-207
-     if(j.ne.j0) then
-        f=f0 + (npr2(j)+2*symbol(j)-1.5) * dfgen * mode4
-        if(flip.lt.0.0) f=f0+((1-npr2(j))+2*symbol(j)-1.5)*dfgen*mode4
-        dphi=twopi*dt*f
-        j0=j
-     endif
-     phi=phi+dphi
-     iwave(i)=32767.0*sin(phi)
-  enddo
-
-  do j=1,5512                !Put another 0.5 sec of silence at end
-     i=i+1
-     iwave(i)=0
-  enddo
-  nwave=i
-
-  if(flip.lt.0.0) then
-     do i=22,1,-1
-        if(msgsent(i:i).ne.' ') goto 10
-     enddo
-10   msgsent=msgsent(1:i)//' OOO'
-  endif
-  do i=22,1,-1
-     if(msgsent(i:i).ne.' ') goto 20
-  enddo
-20 nmsg=i
-
-!      write(*,3002) (symbol(i),i=1,207)
-! 3002 format(70i1)
-
-  return
-end subroutine gen24
-
diff --git a/lib/gen65.f90 b/lib/gen65.f90
index 869d43287..69388c362 100644
--- a/lib/gen65.f90
+++ b/lib/gen65.f90
@@ -10,7 +10,6 @@ subroutine gen65(msg0,ichk,msgsent,itone,itype)
 !  character*3 cok               !'   ' or 'OOO'
   integer dgen(13)
   integer sent(63)
-  logical text
   integer nprc(126)
   data nprc/1,0,0,1,1,0,0,0,1,1,1,1,1,1,0,1,0,1,0,0,  &
             0,1,0,1,1,0,0,1,0,0,0,1,1,1,0,0,1,1,1,1,  &
diff --git a/lib/genjt9.f90 b/lib/genjt9.f90
index ea1ad5993..5dd8c0c8f 100644
--- a/lib/genjt9.f90
+++ b/lib/genjt9.f90
@@ -14,7 +14,6 @@ subroutine genjt9(msg0,ichk,msgsent,i4tone,itype)
   integer*4 i4DataSymbols(69)             !Data symbols (values 0-7)
   integer*4 i4GrayCodedSymbols(69)        !Gray-coded symbols (values 0-7)
   integer*4 i4tone(85)                    !Tone #s, data and sync (values 0-8)
-  logical text
   include 'jt9sync.f90'
   save