diff --git a/astro0.F90 b/astro0.F90
index 84429c373..6b576aff8 100644
--- a/astro0.F90
+++ b/astro0.F90
@@ -104,13 +104,14 @@ subroutine astro0(nyear,month,nday,uth8,nfreq,grid,cauxra,cauxdec,       &
         ih,im,is,AzSun,ElSun,                                        &
         ih,im,is,AzAux,ElAux,                                        &
         nfreq,doppler,dfdt,doppler00,dfdt0,                          &
-        mousefqso
+        mousefqso,nsetftx
 1010 format(i2.2,':',i2.2,':',i2.2,',',f5.1,',',f5.1,',Moon'/        &
             i2.2,':',i2.2,':',i2.2,',',f5.1,',',f5.1,',Sun'/         &
             i2.2,':',i2.2,':',i2.2,',',f5.1,',',f5.1,',Source'/      &
             i4,',',f8.1,',',f8.2,',',f8.1,',',f8.2,',Doppler'/       &
-            i4,',fQSO')
+            i4,',',i1,',fQSO')
      call flushqqq(14)
+     nsetftx=0
      isec0=isec
   endif
 
diff --git a/gcom2.f90 b/gcom2.f90
index 995e685e4..7f46d8a92 100644
--- a/gcom2.f90
+++ b/gcom2.f90
@@ -28,6 +28,7 @@ integer ntr            !Are we in 2nd sequence?                 SoundIn
 integer nmsg           !Length of Tx message                    SoundIn
 integer nsave          !Which files to save?                    GUI
 integer nadd5          !Prepend 5 sec of 0's before decoding?   GUI 
+integer nsetftx        !1 to request setting TS-2000 freq    GUI,astro0
 integer dftolerance    !DF tolerance (Hz)                       GUI
 logical LDecoded       !Was a message decoded?                  Decoder
 logical rxdone         !Has the Rx sequence finished?      SoundIn,Decoder
@@ -108,7 +109,7 @@ common/gcom2/fcenter,ps0(431),psavg(450),s2(64,3100),ccf(-5:540),           &
      green(500),fselect,pctlost,pctblank,rxnoise,dphi,ngreen,dgain,iter,    &
      ndecoding,ndecoding0,mousebutton,multicast,                            &
      ndecdone,npingtime,ierr,lauto,mantx,nrestart,ntr,nmsg,nsave,nadd5,     &
-     dftolerance,LDecoded,rxdone,monitoring,nzap,minsigdb,                  &
+     nsetftx,dftolerance,LDecoded,rxdone,monitoring,nzap,minsigdb,          &
      nclearave,nfreeze,nafc,ncsmin,newspec,nfa,nfb,nfcal,idphi,nkeep,       &
      nmode,mode65,nbpp,ndebug,ndphi,nhispol,nt1,                            &
      nblank,nport,mousedf,mousefqso,neme,nrw26,naggressive,ntx2,nagain,     &
diff --git a/map65.py b/map65.py
index cd8b605f7..4ab3cd7c8 100644
--- a/map65.py
+++ b/map65.py
@@ -927,6 +927,10 @@ def inc_fqso(event=NONE):
 def dec_fqso(event=NONE):
     Audio.gcom2.mousefqso=Audio.gcom2.mousefqso - 1
     
+#------------------------------------------------------ set_ftx
+def set_ftx(event=NONE):
+    Audio.gcom2.nsetftx=1
+
 #------------------------------------------------------ GenStdMsgs
 def GenStdMsgs(event=NONE):
     global altmsg
@@ -1555,8 +1559,8 @@ root.bind_all('<Control-o>',openfile)
 root.bind_all('<Control-O>',openfile)
 root.bind_all('<Alt-q>',logqso)
 root.bind_all('<Alt-Q>',logqso)
-root.bind_all('<Alt-s>',stopmon)
-root.bind_all('<Alt-S>',stopmon)
+root.bind_all('<Alt-s>',set_ftx)
+root.bind_all('<Alt-S>',set_ftx)
 root.bind_all('<Alt-x>',decode_exclude)
 root.bind_all('<Alt-X>',decode_exclude)
 root.bind_all('<Alt-z>',toggle_zap)
@@ -1588,7 +1592,7 @@ iframe4b.pack(expand=1, fill=X, padx=4)
 iframe4c = Frame(frame, bd=1, relief=SUNKEN)
 blogqso=Button(iframe4c, text='Log QSO',underline=4,command=logqso,
                 padx=1,pady=1)
-bstop=Button(iframe4c, text='Stop',underline=0,command=stopmon,
+bstop=Button(iframe4c, text='Stop',command=stopmon,
                 padx=1,pady=1)
 bmonitor=Button(iframe4c, text='Monitor',underline=0,command=monitor,
                 padx=1,pady=1)
@@ -1666,6 +1670,8 @@ f5b.pack(side=LEFT,expand=1,fill=BOTH)
 f5c=Frame(iframe5,bd=2,relief=GROOVE)
 txfirst=Checkbutton(f5c,text='Tx First',justify=RIGHT,variable=TxFirst)
 f5c2=Frame(f5c,bd=0)
+ftx=Button(f5c,text='Set fTx',underline=0,command=set_ftx,
+            padx=1,pady=1)
 genmsg=Button(f5c,text='GenStdMsgs',underline=0,command=GenStdMsgs,
             padx=1,pady=1)
 auto=Button(f5c,text='Auto is Off',underline=0,command=toggleauto,
@@ -1675,6 +1681,7 @@ auto.focus_set()
 txfirst.grid(column=0,row=0,sticky='W',padx=4)
 f5c2.grid(column=0,row=1,sticky='W',padx=4)
 #sked.grid(column=0,row=3,sticky='W',padx=4)
+ftx.grid(column=0,row=2,sticky='EW',padx=4)
 genmsg.grid(column=0,row=4,sticky='W',padx=4)
 auto.grid(column=0,row=5,sticky='EW',padx=4)
 
diff --git a/map65a.F90 b/map65a.F90
index 42bcf4b55..85e80ad53 100644
--- a/map65a.F90
+++ b/map65a.F90
@@ -96,7 +96,13 @@ subroutine map65a(newdat)
         if(mod(i-ia,10).eq.0) then
            do jp=1,4
               do ii=-50,50
-                 tavg(ii)=savg(jp,i+ii)
+                 iii=i+ii
+                 if(iii.ge.1 .and. iii.le.32768) then
+                    tavg(ii)=savg(jp,iii)
+                 else
+                    print*,'Error in iii:',iii,ia,ib,fa,fb
+                    stop
+                 endif
               enddo
               call pctile(tavg,tmp,101,50,base(jp))
            enddo