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#1
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I run a 130' dipole fed with ladderline down to a balun , then a coax stub
to the tuner. During a recent storm, one side of the antenna broke, or was broken by a falling limb---whichever. The easy fix is to solder the pieces together, while bracing them physically. This would make the side where the break was approx 1' shorter than previous. Will my tuner compensate for a 1' assymetrical load? Any reason not to do this, insofar as loading/performance? |
#2
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Should be no problem.
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#3
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Thanks.
I think it's one of those deals that goes: yes, there is an imbalance situation created. But, it's not significant in the big picture. I can live with that! |
#4
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The original Windom *was* an intentionally off center fed multi-band
antenna. Anybody have info on the Windom from the 40's 40's. Dad used one, but I don't know what he did. Steve K,9'D;C.I "RB" wrote in message ... Thanks. I think it's one of those deals that goes: yes, there is an imbalance situation created. But, it's not significant in the big picture. I can live with that! |
#5
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Steve Nosko wrote:
The original Windom *was* an intentionally off center fed multi-band antenna. Anybody have info on the Windom from the 40's 40's. Dad used one, but I don't know what he did. Steve K,9'D;C.I YEP!! 134 feet long. Fed 46 feet from one end with a SINGLE WIRE [NO COAX, NO TWIN LEAD, NO BALUN, etc.]. Very good tuning system required. Allegedly something close to 600 ohms at feedpoint. More wishful thinking than reality. [In those days people were not obsessed with VSWR = 1.000001 to 1. ] Some feed lengths produced a 'hot' key or mike. Changed length of feedline to get rf out of shack. X 80, 40, 20, 10 meters. All current model 'Windoms' are true fakes !!! |
#6
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The original Windom *was* an intentionally off center fed multi-band
antenna. Anybody have info on the Windom from the 40's 40's.... Wasn't the design criteria something like "make it 40 feet high and feed it 40 feet off-center"? -- --Myron A. Calhoun. Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge PhD EE (retired). "Barbershop" tenor. CDL(PTXS). W0PBV. (785) 539-4448 NRA Life Member and Certified Instructor (Home Firearm Safety, Rifle, Pistol) |
#7
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Myron Calhoun wrote:
"Wasn`t the design criteria something like "Make it 40 feet high, and feed it 40 feet off center." The Windom was named for the amateur who described it in an article. It was a 1/2-wavelengrh at its lowest frequency of use. A single feed wire is connected at 0.34 X the length of the antenna, from one end. The Windom works best over highly conductive earth using a versatile matching network to the transmitter. The 1/3 length feedpoint from one end is about 1/6 the distance from the antenna`s centerpoint. 40 feet off center, makes the antenna 240 feet long. This is 1/2-WL at 146 meters. It is 12 meters high. This is 1/4-WL at 48 meters and 1/2-WL at 24 meters. Best regards, Richard Harrison, KB5WZI |
#8
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