balun

so i built this linear loaded SWL antenna, a project i found on the swling website, which involved getting a a NooElec 9:1 balun in the middle of two 15ft pieces of romex bound at the ends in a way that it effectively makes a dipole with 45ft elements. this balun is not made for any kind of...

I am licensed but inexperienced. I bought a end-fed random wire antenna with the 9:1 balun. It held up poorly over the year. The wire is nearly torn apart, and of course I can replace that easily. But I am not sure it was ever working, and I don't know how to test the Balun to be sure. I...

I have used my small loop antenna (which has a main loop and a coupling loop that can be tuned using a variable capacitor) with an AM radio receiver to receive MW broadcasts. However, the small loop antenna which was made by me was not working properly but when I connected a ferrite rod loop...

relatively new to HF, everything i've done so far has been FT8, and i was super proud of the 20m dipole i built... until a branch fell and did epic damage to my house and took out my dipole in the process... my MFJ tuner couldn't get my 20m dipole to work 6m, so my plan once the roof is...

I am building a dipole antenna. I know that the feedline needs to be approximately 1/2 wavelength in length (or factors there of) for best SWR. However, there is one item of confusion. I am making an RF choke by coiling the feedline at the base of the antenna. Do I include the length of coax in...

Hi, Probably 10 years ago, I installed a longwire antenna on my house's detached garage. One end of the longwire is connected to a "magnetic balun" transformer. From there, a coax crosses over the driveway and enters in through the wall of the house. The antenna was grounded with two ground...

Just started playing with the home-brew antennas for my scanner family. I have 2 I am using now, plus 4 purchased antennas... I've been reading, and reading, and looking at pictures, studying designs... ... and there's a few things that seem unclear to me: 1) for dipoles, real dipoles...

hi friends, I've Diamond BU-50 purchased recently, just for curiosity i used continuity checker on two arms of balun, surprisingly light on continuity checker glow, it is normal or is there any problem with my balun ? can someone guide ? 73 503733238

Hi all, I've enjoyed perusing this site, gleaning what info I can understand. I like to think I'm pretty tech savvy, but I clearly don't understand antennas and RF as well as I'd like. I purchased a home, and in the attic I found a TV antenna. It looks to be a pretty normal all-band tv...

I am looking for advice on getting the best reception for several different portable shortwave radios like the Grundig G-5 and Sangean ATS-803A. I am putting up a 100 foot 12 gauge insulated wire from a stationary post on the top of my house (25 foot high) out to a tree. I have used cable ties...