[Elecraft] k3 STEPPIR 6Meters

[Joe Subich, W4TV]

> In my design, you can make the changes to a steppir on a tower if you
> can reach your passive 6M element.   You don't have to order any
> parts to make this work.
The GM3SEK modification can also be made "on the tower" as both the
new elements are less than 4 feet from the mast.  Ian spent considerable
time modelling and working on an element mounting system to provide
stable operation with changing weather.

73,

    ... Joe, W4TV


On 2021-05-02 10:42 AM, Michael Walker wrote:
> I added the 6M element and wasn't happy with the performance.
> 
> I remodelled it and I was able to improve a number of things and posted the
> measurements on my QRZ page if you are interested.
> 
> Not only did it model better it performed better and loaded better as the
> SWR was lower.   A bunch of  my friends tried it and they were pleased with
> it as well.
> 
> In my design, you can make the changes to a steppir on a tower if you can
> reach your passive 6M element.   You don't have to order any parts to make
> this work.
> 
> This was for the 3EL Steppir.
> 
> Mike va3mw
> 
> 
> On Sun, May 2, 2021 at 8:42 AM Joe Subich, W4TV <lists at subich.com> wrote:
> 
>> On 2021-05-02 3:59 AM, turnbull wrote:> Dear OMs and YLs,I believe if
>> you check online there is a
>>> modification to mounting the additional parasitic element possibly
>>> even adding yet another which is supposed to greatly improve the
>>> three element SteppIR six meter performance over that of the three
>>> element with the single parasitic element.
>> That modification is by GM3SEK (about 2015).  I believe is was in one
>> of the UK publications.  In any case, Doug is correct, the modification
>> adds both a director and reflector turning the 3 element SteppIR into
>> a proper four element yagi on a 12.5 foot boom.
>>
>> 73,
>>
>>      ... Joe, W4TV
>>
>>
>> On 2021-05-02 3:59 AM, turnbull wrote:
>>> Dear OMs and YLs,I believe if you check online there is a modification
>> to mounting the additional parasitic element possibly even adding yet
>> another which is supposed to greatly improve the three element SteppIR six
>> meter performance over that of the three element with the single parasitic
>> element.As I have a four element SteppIR, this has not been tried
>> here.Worth investigating.73 Doug EI2CNSent from my Galaxy
>>