I have a transceiver sending 100 W out its antenna plug. The impedance of the transmitter is pretty much 50 Ohm resistive. I tune my T-match to...
Interesting article (below) authored by Robert Colburn, IEEE History Center. An idea developed by a radio amateur with far more communications...
Dear friends! I need your advice and your help. I have a need to purchase a mast for my future antenna. Since I am in Ukraine, all that can be...
Hi, My concrete roof is completely flat, but along the edges of the roof there is an aluminum roof trim installed. If I'd run my 40m dipole at...
Hello, I have an Arrow Antennas OSJ 140/440 J-pole antenna mounted in my attic. I have never really obtained the range I would like out of it, I...
Hello there, I am finding it really hard to get best antenna for my home, Can anyone help me with this in finding the best antenna.
In these two videos, in part one I show my build of the KM4ACK EFHW antenna, then part two video I get the antenna outside and place it only about...
Don't throw that old cable TV coax away. Put it to use as ham feedline. It's a solid copper or copper coated steel center along with double...
Can I put up a wire that I do not need a tuner say 40 meters for a starting point I am just trying to save a few bucks by eliminating the tuner.
New to ham radio. Playing around a bit with FT8. My experience is that I am receiving signals generally at fairly high positive numbers +13, +22,...
New to Ham Radio. Have an ICOM 7300 and a 102' G5RV. Antenna center is up in a tree about 40' with the legs in an inverted V down to about 10'...
What is logmag? I just built a ZS6BKW. The yellow line is the logmag thing and the blue line is the SWR. It looks like I have a lot of tuning to do
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I live in a Senior's / Disabilities apartment complex where no outside antennas are permitted. Nothing can be attached to the building and no...
To help new hams prepare for the exciting world of HF opening up during Cycle 25, ARRL has partnered with HF Kits to bring you this easy-to-build...
I recently came in to the possession of a Sommer T-25 vertical. I think it supposed to handle 80-10m... The one I have has the 4 radial kit on...
Started doing some research on a VNA. I have read a few threads but still have some specific questions about them. Thanks in advance for any...
I think I remember reading somewhere that you could tune this antenna two different ways. Either by trimming the wire or by trimming the ladder...
I understand the concept of using an internal ATU to match the impedance of a transceiver output to the feedline and antenna impedance to allow...
This was about today, drone operator for years but never really had the time to give it a go. It was pretty good experience and one weird thing I...
