It's 2 folded dipoles and 3 baluns. The lower folded dipole connects to both baluns with no short across the balun but like a folded dipole it is connected on the ends of the ladder or window line.
Has anyone thought of this? What's wrong with it?
It's 2 folded dipoles and 3 baluns. The lower folded dipole connects to both baluns with no short across the balun but like a folded dipole it is connected on the ends of the ladder or window line.
Has anyone thought of this? What's wrong with it?
I've enjoyed island life for 17 years. That's 13 years more than the Confederacy was around.
RIP Albi
When do you tell a woman you're a ham?
It's a jungle out there. Many EQ stupidly with poor articulation.
~TKX
YIAH
"And, of course, the Gym Teacher being his usual self."
W3WN
"The enablers ride on the top of the pile."
WZ7U
I'm not good with computer modeling of antennas but I suspect that impedance matching issues might present a problem. Only way to know for sure is to either model it with EZNEC or build the thing and hook it up to an antenna analyzer to see what you get.
All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.
Well let's just say that the impedances all match up and we're using the proper baluns.Originally Posted by KJ6BSO
I've enjoyed island life for 17 years. That's 13 years more than the Confederacy was around.
RIP Albi
When do you tell a woman you're a ham?
It's a jungle out there. Many EQ stupidly with poor articulation.
~TKX
YIAH
"And, of course, the Gym Teacher being his usual self."
W3WN
"The enablers ride on the top of the pile."
WZ7U
What's the distance in fractions of a wavelength of the cable between the two antennas?
Last edited by NQ6U; 11-13-2013 at 03:56 PM.
All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.
50 feet but that shouldn't matter since the top will be perpendicular with the bottom.
I've enjoyed island life for 17 years. That's 13 years more than the Confederacy was around.
RIP Albi
When do you tell a woman you're a ham?
It's a jungle out there. Many EQ stupidly with poor articulation.
~TKX
YIAH
"And, of course, the Gym Teacher being his usual self."
W3WN
"The enablers ride on the top of the pile."
WZ7U
Doing some research now....
One thing that occurs to me is that the characteristic impedance of a half-wave folded dipole is roughly 280 ohms, so if you use 300 ohm twin lead, you could lose two the the three baluns.
All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.
Wouldn't depend on what kind you used?
3:1/4:1/6:1 ???
I've enjoyed island life for 17 years. That's 13 years more than the Confederacy was around.
RIP Albi
When do you tell a woman you're a ham?
It's a jungle out there. Many EQ stupidly with poor articulation.
~TKX
YIAH
"And, of course, the Gym Teacher being his usual self."
W3WN
"The enablers ride on the top of the pile."
WZ7U
I don't understand that. What I'm saying is that the characteristic impedance of the two folded dipoles is close enough to that of twin lead that you can do away with two of the baluns and 50 feet of coax, reducing weight, cost and complexity. When it comes to building antennas, I'm for all those things.
All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.
Well now you're just raining on my parade.
I've enjoyed island life for 17 years. That's 13 years more than the Confederacy was around.
RIP Albi
When do you tell a woman you're a ham?
It's a jungle out there. Many EQ stupidly with poor articulation.
~TKX
YIAH
"And, of course, the Gym Teacher being his usual self."
W3WN
"The enablers ride on the top of the pile."
WZ7U
Is this a fractal design?
A clear conscience is usually a sign of a bad memory
RIP ALBI-W3MIV RIP RUSS-W5RB RIP BOB-VK3ZL
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