INSTRUCTIONS
   MODEL AVP-AV-1 PULSE GENERATOR
                                 S.N.:
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        WARRANTY
   Avtech Electrosystems Ltd. warrants products of its   manufacture to be
      free   from
   defects   in  material  and workmanship under conditions  of normal use
   .  If,  within one  year
   after delivery to the original owner, and after prepaid  return by the
   original owner, this Avtech
   product is found to  be defective, Avtech  shall at its  option repair
   or  replace  said defective
   item.   This warranty does not  apply to units  which  have   been  dis
   sembled,  modified   or
   subjected   to   conditions exceeding the applicable specifications or
   ratings.   This warranty is
   the extent of  the obligation or liability assumed by Avtech with respe
   ct to this  product and no
   other warranty or guarantee is either expressed or implied.
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           Notes:
           1)
   The bandwidth capability of components and instruments  used to display
   the pulse
   generator output signal  (attenuators, cables, connectors, etc.) should
   exceed  ten
   gigahertz.
           2)
   The use of 40 dB attenuator will insure a peak input  signal to the
   sampling scope of
   less than one Volt.
           3)
   In general, the source pulse generator trigger delay  control should be
   set in the 0.1 to
   1.0 us range.  Other settings should be as shown in the above diagram.
           4)
   The Model AVP-AV pulse generator can withstand an  infinite VSWR on the
   output port.
           5)
   WARNING:  Model AVP-AV may fail if triggered at a PRF  greater than 1.0
   MHz.
           6)
   The output pulse width is controlled by means of the one turn
   potentiometer (PW).
   The pot should initially be set maximum clockwise and the pulse width
   adjusted using
   an oscilloscope.
           7)
   The output pulse amplitude is controlled by means of the one turn
   potentiometer
   (AMP).  The pulse width may  change by several nanoseconds as the
   output amplitude
   is reduced from maximum to minimum.  Therefore it is  convenient to
   first set the
   desired amplitude and then  set the desired pulse width.  Rotation of
   the PW pot
   causes the position of the falling edge of the pulse to  change.
            8)
   Some properties of the output pulse may change as a  function of the
   amplitude pot
   setting.  For some  demanding applications, it may be desirable to use
   a  combination
   of external attenuators and the amplitude  pot to achieve the desired
   output
   amplitude.
   9)
   For additional assistance:
   Tel:  613-226-5772
   Fax:  613-226-2802
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