[Antennas] Inductively Loaded Vertical Dipoles

[Ron & Madhavi]

I am addressing this question to the gurus not only as an academic =
issue, but also because this is a real world scenario at my QTH.

If bandwidth is not an issue, is it a fair compromise to inductively =
load an element, in order to have it higher off the ground, than have a =
full length 40m (inverted vee) element around 10' off the ground? The =
vee doesn't work well since I can't get the angle right (small lot). I =
have an anchor point at 40' and  was wondering if a loaded vertical =
dipole might work better? A 1/4 wave vertical will need lots of radials =
-- space for which I do not have in my garden.=20

I am aware that linear loading and capacitive top loading are more =
efficient than lumped inductance.  I might add that I considered having =
capacitive loading wires at the top and bottom of the element, but this =
would mess up my 32' wide back yard and pose problems with anchor =
points. If results of an inductively shortened dipole are encouraging, I =
might consider building an aluminium element with capacitive hats.  =
Thus, for now, like to base the discussion on inductive loading. BTW, =
where best to place the coils?

As a matter of interest, I have a 20m coax double bazooka sloping dipole =
(bottom end 8' off ground) which handsomely beats an inverted vee at 40' =
This is the reason I am wondering if I can run a loaded dipole to good =
effect on 40. Admittedly, the 20m sloper dipole is full sized. I have =
noted that the Force 12 sigmas seem to work very well too!=20

As I said, bandwidth is not an issue because I am mainly a 40m CW op. =
50Kc workable bw would be al I want!=20

73,
Ron, 6Y5/4S7RO


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