Re: Impedance 50 ohm Spectral analyzer HP8558B
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Gerard I don't know if the 50 ohms includes DC (0 Hz) or not, but what it means is that the input of the analyzer appears to be a 50 ohm dummy load for the RF frequencies for which it is supposed to work properly.? ?Thats the normal impedance of coaxial systems, so that's the way it looks.? ?Typically they are NOT allowed to have more than a milliwatt or so of power going into them, however....
Gordon
On Wed, Jun 9, 2021 at 3:20 PM Gerard < kabupos@...> wrote: Hello,
I am sorry to ask the question here, but I have not yet received a specific answer on the subject on the agilent group.
My question is simple: When we say that an analyzer has a input RF of 50 ohms, what does that mean?
I don¡¯t think it¡¯s so simple.....
I take an ohmeter on the input RF N, what i have to get?? 50 ohms, infinity, or something other?
you may see my topic here:
[email protected] | Hp8558b spectral analyzer (2/2)
I¡¯m stuck on my diagnosis
cdt
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