[TenTec] Resonant antennas
Ken Brown
ken.d.brown at verizon.net
Sat Sep 4 18:01:52 EDT 2004
This is not a Ten-Tec specific topic, however.....
> And, of course,
>he/she needs to know how to change bands and load the antennas (which ought to be
>resonant).
>
While there may be some reasons that it is "nice" or "convenient" to
have antennas resonant, it is absolutely not necessary. I does not even
make them work better in some instances, or significantly better in most
instances. Yes, the transmitter should have a load which is not too far
from being the right impedance and low reactance (50 ohms for most rigs
these days) This can be accomplished using a tuner, making the antenna
system (antenna, feedline and tuner) not necessarily the antenna by
itself, resonant. Or it can be accomplished by using a wideband antenna,
such as a discone or log periodic, that has such a broad flat impedance
curve that it can hardly be called "resonant" at all. A lossy antenna ar
a dummy load is another way, but of course not the best.
Ken N6KB
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