antenna analysis

I have a 30m EFHW resonant sloper antenna. I've completed tuning it using my RigExpert and have an excellent SWR at the antenna and the TXRX. I know that some common mode currents are present, so I have a CMC filter at the antenna and in the shack. I've attached an image showing the antenna...

Good evening! Anyone with a Create 50-1300MHz CLP-5130-1N (or it's variants) measured how it performs transmitting in the VHF 150's & 160's MHz (MURS, Commercial, and Marine bands) and UHF 450's and 460's MHz (Commercial and GMRS bands)? If it is a decent performer in these areas, it may well...

a webSDR radio shows this on the waterfall display. periodic frequency ranges of inconsistent width that are heavily biased at the lower end, about linear throughout most of the middle, fades out at the high end. says the antenna is some model of DX Commander. must be a vertical antenna...

GigaParts, is having RigExpert AA-1400 Antenna Analyzer Group Buy Deal if they Sell 25 your price is $599 if they sell 50 units you get a $100 Gift Card here is the link Search results for GigaParts.com

hi, how can we measure the received voltage from the antenna? can we measure it with multimeter? is it AC or DC voltage? looking forward for help thanks

Learn how to use 4NEC2 in the design and analysis of antenna systems. With a sample version and a paid (full) version of the book, the reader will start from downloading and installing 4NEC2, learning the 4NEC2 user interface, build a 20M dipole and analyze it at various heights above real...