Hp Hewlett Packard Agilent 8664a Opt 003 Rear Panel I/o Opt 004 Low Noise 3ghz

US $699.99

  • Richardson, Texas, United States
  • Jan 29th
HP Hewlett Packard Agilent 8664A Opt 003 Rear Panel I/O Opt 004 Low Noise 3GHz S/N 3438A00689 All buttons and knob working ok.  The Frequency from 100MHz to 3GHz looks good, however the amplitude has some issues for certain amplitude settings. I'll try to describe below. The ** lines represent good readings. +3dBm on 8664A results in -28dBm measured +2dBm on 8664A results in -29dBm measured +1dBm on 8664A results in -30dBm measured +0dBm on 8664A results in -31dBm measured -1dBm on 8664A results in -32dBm measured -2dBm on 8664A results in -2dBm measured  ** -3dBm on 8664A results in -3dBm measured  ** -4dBm on 8664A results in -4dBm measured  ** -5dBm on 8664A results in -5dBm measured  ** -6dBm on 8664A results in -6dBm measured  ** -7dBm on 8664A results in -38dBm measured -8dBm on 8664A results in -39dBm measured -9dBm on 8664A results in -40dBm measured -10dBm on 8664A results in -41dBm measured -11dBm on 8664A results in -42dBm measured -12dBm on 8664A results in -12dBm measured  ** -13dBm on 8664A results in -13dBm measured  ** -14dBm on 8664A results in -14dBm measured  ** -15dBm on 8664A results in -15dBm measured  ** -16dBm on 8664A results in -16dBm measured  ** -17dBm on 8664A results in -48dBm measured -22dBm on 8664A results in -22dBm measured  ** -52dBm on 8664A results in -52dBm measured  ** -57dBm on 8664A results in -89dBm measured So it looks like dBm settings ending with 7,8,9,0, and 1 are about 30dBm down from where they should be. dBm settings ending with 2,3,4,5, and 6 look ok. When the dBm setting changes between -1 and -2, I hear the 8664A make a sound like some type of relay is changing state. The relay sound does not occur when DBm setting is changed from -2 to -3, -4, -5, or -6. The relay sound occurs again when DBm setting is changed from -6 to -7 and the sound does not occur again until changing from -11 to -12.    May need calibration after repair.  Does not include cables and power cord. May ship via Fedex

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