Need further info on network analysis terms...
On 8 May 2006 21:27:03 -0700, "K7ITM" wrote:
And--I had posted something similar about length being important--it
was the posting to which you replied asking about if length was
important. You really would get more respect if you looked a bit more
carefully at the info already posted. It would be a lot better if you
would ask specific questions about what was already posted. The
specific paragraph from my earlier posting is quite clear about the
effects of length being important:
"You can make a decent open that's nominally the same electrical length
as the load by sawing the center pin off flush with the dielectric, and
a short by shorting the pin to the shell. Do it with a tiny disc of
copper foil if possible--but in a pinch you can use multiple lengths of
wire radially out from the center pin. All these things should have as
close to ZERO lead length as possible. At 1GHz, 1 millimeter is a
little over 1 degree of phase shift, with air dielectric, and more with
Teflon or other dielectric. "
I can understand Wes' frustrations.
And I your's.
Regards,
Wes
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