I have seen and tried this unit, both in the field at AmTech day
(http://fars.k6ya.org) and at the Timewave Pacificon booth, and know the
pepole (Dale NX6S et. al.) who designed it. It is very nice. I want
one, but is expensive. If I had a lab budget I would get one.
At AmTech day I hooked a piece of twin lead to it and got the frequency
it was 1/2 wavelength on. It agreed with my Autek VA1 but had a few
more decimal places, and was much easier to use, giving the results in
real time. Dale also said I could have terminated it in a resistor and
gotten a Smith chart for finding the characteristic impedance, also in
real time.
At Pacifocon, I hooked a Maldol 20m whip to it, saw two dips in the SWR
curve (one at about 16MHz and the other somewhere equally useless, 9MHz
I think). I clipped a foot of bus wire to it (I trick I think I learned
from N6KR at a PAARA club prsentation) and the dip went down a bit but
not to 14MHz. The analyzer showed me this graphically in real time on
its screen, and also on a computer which was slaved to it (though not
required).
Then I walked off with Dale's BNC connector. (I couldn't fit the
analyzer in my pocker.)
Leigh / WA5ZNU
On Sun, 13 Nov 2005 8:00 pm, Ward Willats wrote:
This caught my eye. Don't know if it is shipping yet or not....
http://www.timewave.com/TZ-900.html
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