I would love to see the impedance matching range for that tuner as
plotted on a Smith Chart. I don't think that I could spend that kind of
money for an impedance-matching device without knowing what impedances
it could match and at what power levels for each band.
Wonder why tuner makers don't provide this level of documentation, even
after you buy the box?? There are computer programs that will calculate
all this given the L and C values of the circuit.
72/73, George W5YR - the Yellow Rose of Texas NETXQRP 6
Fairview, TX 30 mi NE Dallas in Collin county QRP-L 1373
Amateur Radio W5YR, in the 55th year and it just keeps getting better!
Icom IC-756 PRO #02121 (9/00) Kachina #91900556 (12/99) IC-765 (6/90)
Sherrill WATKINS wrote:
>
> There is a high power balanced antenna tuner being advertised in
> Electric Radio Magazine. It is large and should handle maximum legal
> amateur power with no problem. It advertises to be a "true balanced"
> antenna tuner; i.e. does not use a power robbing balun. Unfortunately,
> the price is quite high, at least for me! (+$500). I would prefer
> to build one based on the circuits shown in the old editions of the ARRL
> Antenna book or equivalent publications. - 73s- Corn - k4own.
--
FAQ on WWW: http://www.contesting.com/FAQ/tentec
Submissions: tentec@contesting.com
Administrative requests: tentec-REQUEST@contesting.com
Problems: owner-tentec@contesting.com
|