I'd like to know the value of the R which is opposite the feedpoint in
the T2FD antenna.
Thanks in advance.
73
Bob K4TAX
Bwana Bob wrote:
>
> Yes, it was the MAXCOM antenna that had the scrap pieces of pc board
> inside the feed point, in addition to the loading resistors. The MAXCOM
> had the loading resistors located at the feedpoint, as the ARRL test
> confirmed, the swr was low even with no wires connected to it!
>
> The B&W is a true T2FD, which is a floded dipole with the resistive
> loading located opposite the feedpoint. I saw some specs but I don't
> recall whether they were for the B&W or the Telex version. The
> manufacturer was honest enough to list efficiency, and as, expected,
> efficiency at 3.5 MHz was about 40%.
>
> The only advantage of these antennas is for disaster releif agencies
> who have nontechnical operators and need "plug and play" operation, and
> the military who use frequency hopping tecniques over a wide range of
> frequencies.
>
> For amateurs, a dipole or loop and a tuner will provide much better
> performance. Every shack should have a tuner. It is a very easy beginner
> project and Ten-Tec sells the parts you need, as does Fair Radio Sales.
>
> 73,
>
> Bob WB2VUF
>
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