#    This is the Channel Gain register  0x1n28



    for {set i 0} {$i < $NumChans} {incr i} {
        variable Ch$i.Gain 0
    }

proc GetGain {} {
   variable NumChans

    for {set i 0} {$i < $NumChans} {incr i} {
        variable Ch$i.Gain
        set Ch$i.Gain [ReadRegister Ch$i.Gain]
    }
}

proc SetGain {w} {
   variable NumChans

      for {set i 0} {$i < $NumChans} {incr i} {

         if {$w < $NumChans && $w != $i} {continue}

         variable Ch$i.Gain
         WriteRegister Ch$i.Gain [set Ch$i.Gain]
      }

}

    proc SaveGain {} {
   variable NumChans

      for {set i 0} {$i < $NumChans} {incr i} {

           DBSetValue Ch$i.Gain [ReadRegister Ch$i.Gain]
      }
    }

    proc RestGain {} {
   variable NumChans

      for {set i 0} {$i < $NumChans} {incr i} {

           variable Ch$i.Gain
           set Ch$i.Gain  [DBGetValue Ch$i.Gain]
           WriteRegister Ch$i.Gain  [DBGetValue Ch$i.Gain]
      }

    }

proc DrawGain {} {
   variable NumChans
   variable Name

   set html ""

   append html  "<p align=center>"
   append html  "<table cellpadding=0 cellspacing=0 border=1>"

   append html "<tr>"
   append html  "<td  align=center width=10%>Channel</td>"
   append html  "<td  align=center width=90%>Channel n Gain</td>"
   append html  "</tr>"

for {set i 0} {$i < $NumChans} {incr i} {

   append html "<tr>"
   append html "<td align=center width=10%>$i</td>"

   append html "<td  align=center width=90%>"

   append html "<select name=GAIN$i size=1 onClick=\"click_CHSETTING(document.[set Name], 'Gain', $i, document.CHSETTINGS.GAIN$i.value)\">"

   set j 0
   foreach item {"x1 (range= 2Vpp)" "x4 (range= 0.5Vpp)"}  {
     variable Ch$i.Gain
     if {$j == [set Ch$i.Gain]} {
        append html "<option value=$j selected>$item</option>"
     } else {
        append html "<option value=$j>$item</option>"
     }
     incr j
   }
   append html "</select>"

   append html "</td>"
   append html  "</tr>"
}
   append html  "</table>"

   append html  "</p>"

   return $html
}