[Elecraft] Problem Tuning K3

[Edward Mccann]

I wonder if this food fight might reach its denouement on another channel?

It seems to have been sparked by an OCFD discussion not relevant to anything Elecraft, and to have evolved into personal preferences and grievances. 

Maybe we should take on End Fed Zepps next?  Or take the whole thing off-line?

If it continues, we are indeed eminently qualified in the use of our delete buttons.

Best from the West,

Ed McCann
AG6CX

Sent from my iPhone

> On Nov 4, 2021, at 12:39 PM, Bill Lederer <w8lvn.9 at gmail.com> wrote:
> 
> Not Dick Tracy here, nor am I K9YC.
> 
> I had very good results running mobile with 100 watts and a hustler on the
> roof of my Suburban. I also have fun with my kx2 and a random wire 15 feet
> high out the window to a tree.
> 
> Your notes about the success of various real-world examples leaves out what
> the comparison would be with a true dipole. For a true test, you would need
> to do a head-to-head comparison of the two antennas. K3LR used to do this
> at Dayton.  Proof is not how many OCF antennas fly above roofs, but how do
> they compare to a similarly situated dipole.
> 
> A true test of equipment and antennas is how well they do in a contest.
> With these OCF antennas, can you work 100 countries in a weekend on
> multiple bands? Can you get to 300 countries in DXCC? Much less likely than
> dipoles, properly built verticals or beams.
> 
> Can you have fun with OCF or other compromise antennas? Yes. But other
> antennas are likely to do better.
> 
> w8lvn
> 
> 
> 
> 
>> On Thu, Nov 4, 2021 at 12:00 PM JR <jrichards at k8jhr.com> wrote:
>> 
>> Jim Brown says --
>> 
>>        I suspect you don't understand the physics of
>>        the problem. OCF antennas are a yesterday's approach
>>        to multiband antennas. They are a recipe for RX noise
>>        and RF in the shack.
>> 
>> ___________________________________________________
>> 
>> NOT SO, DICK TRACY !
>> 
>> While YOUR OCF dipole may have problems if poorly deployed and
>> implemented.  It is a PLAIN FACT based on thousands of real world examples,
>> OCF Dipoles DO WORK WELL.  Mine works very well with NO CMC or other
>> problems.  A few years ago, I gave some minor assistance to a notorious
>> German operator, DJ0IP, as he collected a wealth of empirical data on CMC
>> and OCF dipoles, carefully testing multiple examples before designing a
>> commercial product that has been well received by the QRP crowd, receiving
>> positive reviews in the RSGB and ARRL magazines.  He received even more
>> assistance from W8JI and G4TXQ and others,focusing their attention on how
>> to avoid common mode current (CMC),  discussing where to offset the feed
>> point, and how to construct a proper combination balun and choke.  My OCF
>> Dipole is split 25% /75% split and Rick selected a very different feed
>> point, and all is good.
>> 
>> CMC is NOT a necessary evil as Mr. Brown suggests. It CAN be curtailed
>> with "proper care and feeding" (pun intended) and the proof flies over my
>> shack, and over hundreds of other shacks, including DJ0IP's station, around
>> the globe.
>> 
>> Pedantic dogma be hanged !!  I base my claim on 1) real world results,
>> 2) TONS of empirical research by others,  and 3) input from my local
>> Elmer/guru who designed RF gear for NASA and the AIR FORCE and commercial
>> interests.  Mr. B's theory is out of step with the real world.    (smiling
>> as he typed that, Pardner...)  :-)  -K8JHR-
>> 
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> 
> 
> -- 
> --w8lvn--
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