multiband wire antena
anyone have a good ideia to build a multiband wire antena?
Carlos Poinho CU3FT |
Several at AC6V's site URL:
http://ac6v.com/antprojects.htm#TRI -- ruido de icógnito "CP" wrote in message ... anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT |
Several at AC6V's site URL:
http://ac6v.com/antprojects.htm#TRI -- ruido de icógnito "CP" wrote in message ... anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT |
A simple inverted-L (a vertical wire plus a horizontal wire), of no particular length is about the best you will ever have. The higher the better. You will need a ground connection such as half-dozen, shallow-buried radial wires, between 10 and 20 feet long. Include any metal water pipes with the radials. An overall wire length between 100 and 150 feet does better on the lower HF frequencies and on the MF broadcast band. Between 40 and 100 feet does better on the higher frequency HF bands. ---- Reg, G4FGQ ============================================== anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT |
A simple inverted-L (a vertical wire plus a horizontal wire), of no particular length is about the best you will ever have. The higher the better. You will need a ground connection such as half-dozen, shallow-buried radial wires, between 10 and 20 feet long. Include any metal water pipes with the radials. An overall wire length between 100 and 150 feet does better on the lower HF frequencies and on the MF broadcast band. Between 40 and 100 feet does better on the higher frequency HF bands. ---- Reg, G4FGQ ============================================== anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT |
I have used both the inverted L on 160 meters with great results plus it
performed great on other bands except 40 meters. My personal favorite is the center feed double extended Zepp feed with open ladder line and a good antenna tuner or matchbox. If its cut for 80 meters it exhibits about 3 Db gain over a standard dipole, same hold true for forty meters. The forty meter Zepp operates similar to a 80 meter dipole. The higher in frequency the lobes get interesting and exhibit gain in certain directions. I have worked all over the world using 100 watts on 80 meters through 10 meters including the WARC bands. A Extended Zepp center feed is one of the best keep secrets. Good luck Ron W4LDE "CP" wrote in message ... anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT |
I have used both the inverted L on 160 meters with great results plus it
performed great on other bands except 40 meters. My personal favorite is the center feed double extended Zepp feed with open ladder line and a good antenna tuner or matchbox. If its cut for 80 meters it exhibits about 3 Db gain over a standard dipole, same hold true for forty meters. The forty meter Zepp operates similar to a 80 meter dipole. The higher in frequency the lobes get interesting and exhibit gain in certain directions. I have worked all over the world using 100 watts on 80 meters through 10 meters including the WARC bands. A Extended Zepp center feed is one of the best keep secrets. Good luck Ron W4LDE "CP" wrote in message ... anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT |
- Levy with coupler
- Multidipole - Conrad-Hertz-Windom 73 de F8BOE Olivier ...-.- |
- Levy with coupler
- Multidipole - Conrad-Hertz-Windom 73 de F8BOE Olivier ...-.- |
- Levy with coupler
- Multidipole - Conrad-Hertz-Windom 73 de F8BOE Olivier ...-.- |
- Levy with coupler
- Multidipole - Conrad-Hertz-Windom 73 de F8BOE Olivier ...-.- |
CP wrote:
anyone have a good ideia to build a multiband wire antena? My "secret antenna" is the Windom. 44 feet (13m) of wire on one side, 88 feet (26m) on the other side, fed in the center with a 4:1 balun. (many hams use some flat twinlead between the feedpoint and the balun, allowing the balun to be fastened to a pole or something to avoid the physical straing at the feedpoint) Works without a tuner on 80, 40, 20, and 10 meters, and with the autotuner on most rigs on 15. And it's effective. And easy to build! -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
CP wrote:
anyone have a good ideia to build a multiband wire antena? My "secret antenna" is the Windom. 44 feet (13m) of wire on one side, 88 feet (26m) on the other side, fed in the center with a 4:1 balun. (many hams use some flat twinlead between the feedpoint and the balun, allowing the balun to be fastened to a pole or something to avoid the physical straing at the feedpoint) Works without a tuner on 80, 40, 20, and 10 meters, and with the autotuner on most rigs on 15. And it's effective. And easy to build! -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
On Thu, 2 Dec 2004 16:47:08 -0100, "CP" wrote:
anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT http://kh2d.net/windom.cfm 73, Jim KH2D |
On Thu, 2 Dec 2004 16:47:08 -0100, "CP" wrote:
anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT http://kh2d.net/windom.cfm 73, Jim KH2D |
anyone have a good ideia to build a multiband wire antena?
According to Cebick, W4RNL and his modeling, the best 10m through 40m antenna is a wire of 44' in lenght, horizontal fed with ladderline. Gain on these bands as well. Here is the web page to read this. http://www.cebik.com/aledz.html |
anyone have a good ideia to build a multiband wire antena?
According to Cebick, W4RNL and his modeling, the best 10m through 40m antenna is a wire of 44' in lenght, horizontal fed with ladderline. Gain on these bands as well. Here is the web page to read this. http://www.cebik.com/aledz.html |
Reg Edwards wrote: A simple inverted-L (a vertical wire plus a horizontal wire), of no particular length is about the best you will ever have. The higher the better. You will need a ground connection such as half-dozen, shallow-buried radial wires, between 10 and 20 feet long. Include any metal water pipes with the radials. An overall wire length between 100 and 150 feet does better on the lower HF frequencies and on the MF broadcast band. Between 40 and 100 feet does better on the higher frequency HF bands. They'll never get it. It's too simple. ---- Reg, G4FGQ w3rv ============================================== anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT |
Reg Edwards wrote: A simple inverted-L (a vertical wire plus a horizontal wire), of no particular length is about the best you will ever have. The higher the better. You will need a ground connection such as half-dozen, shallow-buried radial wires, between 10 and 20 feet long. Include any metal water pipes with the radials. An overall wire length between 100 and 150 feet does better on the lower HF frequencies and on the MF broadcast band. Between 40 and 100 feet does better on the higher frequency HF bands. They'll never get it. It's too simple. ---- Reg, G4FGQ w3rv ============================================== anyone have a good ideia to build a multiband wire antena? Carlos Poinho CU3FT |
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