(1) If the rod is made of metal, it will pass microwave test & still spoil the franklin's performance. Never use metallic support tied to elements of franklin.Good thoughts on my poor Franklin. I'll take some measurements and microwave a piece of the rod as soon as I can, but life is coming at me right now. In a good way.
(1) If the rod is made of metal, it will pass microwave test & still spoil the franklin's performance. Never use metallic support tied to elements of franklin.
(2) some paint may not absorb microwave, but only reflect it. Such paint will not get hot, but still spoil franklin.
To avoid trouble, best is to use non-metallic un-painted support.
Congratulations for finally receiving the Amplifier!That's why I chose the fiberglass rod. I just cut off a piece of it. It is not painted, the color is in the resin and goes all the way through. I popped it in the microwave and it does not heat. I can move the antenna to a wooden dowel, but my amplifier finally showed up so that will be the next experiment.
Thanks for the information. The two stacked dipoles are seperated by one wavelength vertically or horizontally? How are the two connected with one feed cable? Waiting for some pictures & sketches.Thank you for the welcome!
I dont have any pictures, will try to make some, but its just a normal Franklin. The stacked dipole is two dipoles one wavelength apart center to center.
First I tried the standard 68 mm but I read that 5/8 elements will work better so I cut the next version elements to 86 mm. And it was indeed correct, the 86 mm elements work better than 68 mm.
Today my friend came here and we built a new dipole, this time a single dipole with 86mm elements, and put it in a plastic can and put it on the roof. Amazing result, I doubled the range from indoors and it is a lot better than all other antennas that has been on my roof, including the spider.
But now it is a new problem we have to fix, it looks like my metal antenna mast hide the dipoles view completely in some directions... So next step is to change the metal mast to a plastic mast.
I was walking down the street and a mailman handed it to me.Congratulations for finally receiving the Amplifier!
Did the amplifier arrive by a sail boat or inside a bottle with a note?
I recommend moving Franklin to wooden dowel first experiment, and amplifier next step.
Thank you for the help!
Here is a picture of my piece of art...
Not looking very good compared to other antennas in this thread, but it perform great.