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eddie,
mc posted pictures of the son of a gun stripped down, the box section did not look very long so the radiator is electrically closer to 3/4wave on 10mtrs than it is 5/8wave even if they are measuring the 26ft from the bottom of the box section,
mc said the jogunn was a little shorter than the sigma4 and could be a true 3/4wave, i trust him to know when a groudplane is longer than a 5/8wave even though he lacked the strength to pull his tape measure out past 1/2wave,

i would expect the jogunn to make high angle lobes compared to a 5/8wave if used as supplied on 10mtrs.

i remember reading something on the www that said you can shorten the radiator from resonance needing less cap in the gamma but going too short caused high circulating currents in the gamma section, i don't recall exactly what the article said..

[QUOTE="bob85, post: 347760, member: 18"] eddie, mc posted pictures of the son of a gun stripped down, the box section did not look very long so the radiator is electrically closer to 3/4wave on 10mtrs than it is 5/8wave even if they are measuring the 26ft from the bottom of the box section, mc said the jogunn was a little shorter than the sigma4 and could be a true 3/4wave, i trust him to know when a groudplane is longer than a 5/8wave even though he lacked the strength to pull his tape measure out past 1/2wave, i would expect the jogunn to make high angle lobes compared to a 5/8wave if used as supplied on 10mtrs. i remember reading something on the www that said you can shorten the radiator from resonance needing less cap in the gamma but going too short caused high circulating currents in the gamma section, i don't recall exactly what the article said.. [/QUOTE]

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