[Premium-Rx] HP8640B Manual - Includes the 8649B variant ;>)

[John Wilson]

carly Fiorina???

That's ugly talk, and you should go away and wash out your mouth with
DeOxit. We don't mention that name in polite engineering circles here in the
UK, because said lady is guilty of destroying a once great company. Have you
tried to get any support from the Aglent people? I have, and it's a long and
sorry story, but believe me H-P as we knew it is long gone, and it's HER
FAULT!!!
John
  -----Original Message-----
  From: premium-rx-bounces at ml.skirrow.org
[mailto:premium-rx-bounces at ml.skirrow.org]On Behalf Of John Miles
  Sent: 21 August 2003 19:10
  To: jan at skirrow.org; Barry Hauser
  Cc: premium-rx at ml.skirrow.org
  Subject: RE: [Premium-Rx] HP8640B Manual - Includes the 8649B variant ;>)


  "The 8640B does not do true phase-locking when the "Lock" button is
pressed. It's a frequency-locking scheme: they latch the value of the
counter LSD when you hit Lock, and from that point on, any output frequency
deviation that would result in LSD drift is corrected. So you will
definitely see FM sidebands with deviation related to your current counter
resolution. You can hit the 'X10' or 'X100' buttons to raise the LSD
resolution and reduce the FM in lock mode, but it'll never go away
entirely."

  Although, to be fair, this ended up being debated endlessly, so what I
wrote back then shouldn't be taken as gospel.  (Frequency lock or phase
lock?  Only Carly Fiorina knows for sure.)

  -- john KE5FX
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