[time-nuts] T.I. experimenting - newbie question

[Joseph Gray]

Yes, that is a better way of phrasing my question. If you are correct,
then that would make about 14 mm difference in my measured length,
which would bring me even closer to my calculated length. And the tee
may also be adding to my error margin. Time for more experiments :-)

Joe Gray
W5JG

On Sat, Apr 2, 2011 at 8:05 PM, J. Forster <jfor at quik.com> wrote:
> Seems like you are asking where the "reference plane" of a BNC is. The
> distance between the reference planes defines the electrical length of a
> cable or adapter or "L" or "T".
>
> Unlike "precision" connectors like the APC-7 or GR 900, the reference
> plane of a BNC is not well defined. A quick Google turned up nothing
> really useful.
>
> So, at a guess, if you look at a female BNC, the Teflon surrounding the
> center conductor is flush with the end of the cut off end of that
> conductor. This is about 0.0" to 0.2" below the end of the outside
> conductor. My GUESS is that cut off end is the reference plane. This
> corresponds to the bottom of the annular well in the male VNC.