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I found that the swr on my radio (897D) was high during field day due to other radios transmitting at the same time. Could'nt figure it out for a good while. I had gotten to the site early, set up and tested everything.

Ok, will do. Thanks for the help.

So, build the antenna first and feed it last. What is a typical feedpoint impedence for a yagi with a folded dipole as the driven element? Or are there to many variables to say? I guess I should find some plans and get building.

Ya, I changed the plans in the middle of the project. It started out as a folded dipole and ended up as a regular dipole. Is that coaxial balun less lossy than a toroid balun? I will be feeding a yagi with a folded dipole. And my other question from the last post, How do I match ladder line to...

Ok, I built the antenna with interchangable elements. After using an MFJ 269 I found that a perfect 1:1 could not be found on any frequency in the 2 meter band. Also, I made elements for 70 cm that turned out much lower on the swr meter at 1.3:1. How would using ladder line be different than the...

Lets say that my dipole is 72 ohms at the feed point, my coax is 50 ohms so how do I take care currents on the feed line with out creating to much loss? Someone suggested a 1 wavelength 1:1 50ohm coax balun around a 1 inch pvc form. Would this work? I dont have a tuner for these frequencies so...

O.k. thanks everyone. I don't really expect much out of the thing but, I figure I had better start here rather than with the yagi I want to build.

Like I said, I'm new to all of this so please, bare with me. I have 9' of lmr400 sitting here and I worked some math like this and please tell me if I did something wrong. Aiming for a center frequency of 432.5mhz 300/432.5=.6936 meters x velocity factor of .85=.5895meters x 3.2808 to get into...

I do like the jpole idea however, I wanted a horizontal antenna for the weak signal portion of the bands. What if I lay the jpole on it's side?

Don't know, just want to get started on a project. If I did a dipole (not a folded dipole), would it be easier to match? Also, Do I want the feed point to start a new wave or does it matter?

Hello all, I'm rather new to all of this and was hoping for some help. I would like to start on a 70 cm folded dipole that could also be used on 2 meters. First is this possile. 432.5 mhz and 144.188 mhz on the same element. How do I go about this. Thanks