[Antennas] Professional MLA measurements & comparisons ?

[Ron Youvan]

Henry Frederick "Meils" Meiseles wrote:

> I would guess that there are comparative radiation pattern measurement data available
> on Magnetic Loop Antennas, particularly since they've been used by US military.

> Any non-classified data available that can be shared?

   I assume you are referring to the kind of antenna that MFJ sells as a 
"Hi "Q" loop" if so, all mysteries have been revealed.  I like mine.
   MFJ makes two versions, 40 - ? and like mine 9 - 33 MHz.

> (Is this type of work still done on at Fort Monmouth? Much done there has been
> publicized in the past.)

   ???

> I've been reading so many claims  (here in DK) about how fantastic MLA's are supposed
> to be compared to dipoles and verticals but my own few experimental MLA's showed
> them to be OK in comparison but not more than that.

> Are they superior for short distance communication via very hi angle radiation and
> vertical ionosphere bounce back?  If so that would explain why they would be useful
> in jungle and/or mountainous terrain (Viet Nam).

   I feel it is just about like a dipole, except when horizontally 
polarized it is omni-directional.  (less gain)

> Some say that MLA's have to be kept a good distance from metal structures, others
> say doing so doesn't have any strong negative influence. My guess is that the former is right.
-- 
    Ron  KA4INM -   Every HAM should have at least one desk MIC,
                    it's the perfect place to hang the cans when
                    CW is "arm chair copy."