they actually made several options on the 8444A, one incorporated another fixed frequency oscillator, this option was created for people using the 8444 with the 8558B which only had the first LO routed out while the 141T had two or 3 lo signals coming out (im not really a 141 expert) i also remember them having some L rf or IF sections that deleted one of the LO signal connectors
Alan Melia <Alan.Melia@...> wrote: Hi Thanks Lothar....that is the unit I use most often and have never had to
"take the lid off" (should have looked at the manuals which are out of easy
reach before typing !!)I have certainly had duff connectors inside the RF
head though. I still dont know whether he has a proper output from the
8443....it doesnt sound to me as though he is generating a swept frequency
output but I could be mis-interpreting his narrative. The 30MHz cal signal
test sounds irrelevant to me.
Alan G3NYK
----- Original Message -----
From: "lothar baier" <microwaveengineer1968@...>
To: <hp_agilent_equipment@...>
Sent: Friday, November 16, 2007 4:11 PM
Subject: Re: [hp_agilent_equipment] Re: HP-8443A Tracking Generator Problems
you are talking about the 8444 not the 8443, the 8443 actually does not
require a 500MHz signal
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