[Antennas] Lattin Five

2002年1月30日 14:21:43 -0500

The T2FD antenna is fairly simple to 'homebrew'. Used one back in the
late 50's when CQ magazine first published an article about it.
The T2FD is simply a 'folded-dipole' with the side opposite the feedline
broken in the middle and a high wattage resistor placed there. 
In the original article [I believe by Wil Scherer, W2AEF] the resistor
he used was a 50-watt, 600-ohm, non-inductive resistor.
The T2FD is made with wide spacing .. 6 inches of more .. using low-loss
spacers [ceramic is best, but some
plastics/teflon/delrin/nylon/UHMW/etc.. work ok]. The feedline is
ladder-line or even 300-ohm TV twinlead [for low powered applications]
down to a tuner for open-wire, balanced feedlines.
Good luck!
Don
N8DE
Fernando Quinones wrote:
>> Hello..
> I started into ALE and was looking for
> a frequency agile antenna. The BW T2FD
> is pricey for me. I read a couple
> of articles on the above antenna.
> They both show diagrams, which to me
> show a inconsistency on the center conductor.
> I have since order the patent papers from
> the Patent Office.
> Question: has anyone made one of these?
>> Here is the url for the Patent Office.
> <http://www.uspto.gov/>
> Navigate to patents and do a search.
>> Some interesting patents given out for
> multi frequency antennas.
>> tnx for the bandwidth
>> =====
> 73's Fernando NF6Q/NNN0JYM
> San Jose,CA.
> CCA #01187 FISTS #8649 K2 #2330 (in it's infancy)
> <http://www.geocities.com/nf6q>
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