[TowerTalk] HFTA and Delta loop

[Jim Brown]

Hi Vytenis,

Some important facts about HFTA.

1) It only predicts the behavior of HORIZONTALLY polarized antennas  
Delta loops can be built so that they are vertically or horizontally 
polarized.

2) There are no "antenna files" for HFTA. The difference between one 
antenna and another in HFTA is simply gain.

3) The most difficult part of using HFTA is finding terrain data for 
your QTH and importing it into the program.

4) To predict how well HFTA will work for any given path, you need 
historical statistical data for that path. The only sources I know of 
are the ARRL Antenna Book and from N6BV, who wrote HFTA.

73, Jim K9YC

On 3/16/2014 7:40 AM, LY2KZ wrote:
> Hello guys,
>
> Before starting antenna building I would like to compare its 
> performance for domestic i.e. for European QSOs with HFTA. That is 
> Delta Loop. But first, I do not know is HFTA designed for this antenna 
> type at all and second, I will probably need to create some kind of 
> antenna file which should be imported into HFTA. I have never did that 
> and have no idea how should I do it. With VOA?
> The band of interest is 40m and reference antenna is 3el beam.
> Any share with experience and suggestions will be appreciated.
>
> Thank you
>