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Is a I2k dipole like?
Don't believe so.

An end fed dipole; isn't that a contradiction in terms? No, as the Sirio GainMaster uses that idea.

I see the I2k as an end fed 1/2 wave with an impedance matching section at the base. It uses that capacitor in the top section coupling RF within the range of the chosen cap value - given.

Why did they put it there? Perhaps to make it more broadbanded? If the freq it is being fed changes (10m to 11 or 12m); wouldn't that change the conductivity of the upper section through that capacitor? And if so, then doesn't that affect they way it radiates and accommodates the impedance? IOW, the overall antenna reactance can change when the freq changes?

Just thinking out loud, so excuse me.
That is all I can see.

[QUOTE="Robb, post: 545791, member: 8446"] Is a I2k dipole like? Don't believe so. An end fed dipole; isn't that a contradiction in terms? No, as the Sirio GainMaster uses that idea. I see the I2k as an end fed 1/2 wave with an impedance matching section at the base. It uses that capacitor in the top section coupling RF within the range of the chosen cap value - given. Why did they put it there? Perhaps to make it more broadbanded? If the freq it is being fed changes (10m to 11 or 12m); wouldn't that change the conductivity of the upper section through that capacitor? And if so, then doesn't that affect they way it radiates and accommodates the impedance? IOW, the overall antenna reactance can change when the freq changes? Just thinking out loud, so excuse me. That is all I can see. [/QUOTE]

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