On (28 Mar 97) Wayne Sarosi wrote to Stan Black...
WS> In a message to All Stan Black wrote:
SB> meter one tunes great!! But the 10 meter
SB> one refuses to tune below 2:1. Again
SB> I am using an MFJ-259 tester. I have the
SB> two wires joined at the hookup and
SB> they are seperated about 12" at the end
SB> of the 10 meter dipole. Is there any
SB> way to get this thing to tune?? I have a
SB> tuner but don't really want to use
WS> Uh, run this by me again. You have the IV by the dipole?
WS> I don't understand.
I *think* he is trying to feed both antennas at the same feedpoint. The
10 meter dipole is suspended under the 40 meter dipole by a 12"
(insulated?) spacer connected to the 40 meter dipole (above it) at each
end of the 10 meter one.
I've seen the same idea using multiple dipoles for various bands, all
fed at their common center, and all hanging from the next longer one
above it. But I have never built one like that. A friend told me
recently Radio Shack has a multi band antenna using the same idea.
Theirs is made from a single length of rotator multi conductor cable.
Each dipole "part" is cut from the various conductors for the 10 thru 80
meter ham bands. He bought one and intends to use it as a combo
transmit/receive antenna with his HF tranceiver. I've not heard how it
works yet. More news at 11! Film at 11:30........
... Are flames supposed to shoot out of it like that?
--- PPoint 2.00
---------------
* Origin: K5JCM, Tulsa OK (1:170/600.2)
|