As long as you install a common mode choke at the feed-point of the antenna, they are pretty easy to tune. I use 4" tube spacers for 80/40/20 fan dipoles all elements in parallel.
Thanks for the help Michael. I have since built it up for 40-20-(15)-10 just with a BNC and plywood. All bands are ~1.5 or less with simple fold back tuning. Now just need to find an HF radio.
My first antenna as a brand new Ham was a 10/15/20 fan dipole in the attic of my townhouse. There was barely any distance between the ends, as I had to tie them off to whatever roof rafter was close. I worked 3/4 of the way around the world with it until they installed digital cable in the complex.
I have a 20-meter/6-meter fan dipole in my garage attic. It's invisible, it's lightening resistant, and they both work great. I just wish the 6-meter band openings were a little more frequent. KZ9V
The thing about tuning a fan dipole is being able to put it up and take it down for adjustment. I built a 40/60 fan dipole which works quite well, I only use the 60 part occasionally but it does work well.
I use a 20/10 “fan dipole”. The spacing is about 4 to 6 inches. The 10 meter dipole is below the 20. 1/2 inch PVC water line is used for spacers. I have also used a 40/20/10 with about 6 inch spacing also between each dipole.
How about trying a coupled resonator dipole? Look at an article by W1ZR (sk) in the May 2011 QST edition. “A folded skeleton sleeve dipole for 40 and 20 meters” p 58. It can be cut for other bands as well. Google the topic and you will find references for dimensions for other band combinations, both folded and unfolded versions. I believe these antennas are a little easier to tune than the conventional fan dipole. Hope this helps. 73s de N0SL
As long as you install a common mode choke at the feed-point of the antenna, they are pretty easy to tune. I use 4" tube spacers for 80/40/20 fan dipoles all elements in parallel.
Thanks for the help Michael. I have since built it up for 40-20-(15)-10 just with a BNC and plywood. All bands are ~1.5 or less with simple fold back tuning. Now just need to find an HF radio.
My first antenna as a brand new Ham was a 10/15/20 fan dipole in the attic of my townhouse. There was barely any distance between the ends, as I had to tie them off to whatever roof rafter was close. I worked 3/4 of the way around the world with it until they installed digital cable in the complex.
I have a 20-meter/6-meter fan dipole in my garage attic. It's invisible, it's lightening resistant, and they both work great. I just wish the 6-meter band openings were a little more frequent.
KZ9V
The thing about tuning a fan dipole is being able to put it up and take it down for adjustment. I built a 40/60 fan dipole which works quite well, I only use the 60 part occasionally but it does work well.
I use a 20/10 “fan dipole”. The spacing is about 4 to 6 inches. The 10 meter dipole is below the 20. 1/2 inch PVC water line is used for spacers. I have also used a 40/20/10 with about 6 inch spacing also between each dipole.
Amazing content. I did not know you can put them perpendicular with one another. I want to do 40 and 20.
if you hang up a dipole for 40 meters, it also works for 15 meters and 10 meters with a little experimenting and tuning
How about trying a coupled resonator dipole? Look at an article by W1ZR (sk) in the May 2011 QST edition. “A folded skeleton sleeve dipole for 40 and 20 meters” p 58. It can be cut for other bands as well. Google the topic and you will find references for dimensions for other band combinations, both folded and unfolded versions. I believe these antennas are a little easier to tune than the conventional fan dipole.
Hope this helps. 73s de N0SL
Are you use radio or any device with antennas.
I run mine perpendicular to each other . Keep them out of the near field.
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