A question about the formula below which solvse the average characteristic impedance of a DIPOLE and is taken from page 7-12 of 23rd edition of...
Anyone have much experience with the Moebius Loop? I just purchased the YouLoop from Airspy and have to say I'm impressed. Here it is in a...
Today, I had the misfortune to realize that if one drops or loses the coil clip they are out of business. Has anyone figured out a DIY or...
What type of beverage antenna array do you use? Does it hold to the standard of low noise / superior receive? This area of interest has been...
If you could have a dream repeater, what would it be? Anything is possible, so go ahead and throw it out there! Multi-band or Multi-mode? Full...
Can I get some thoughts and ideas on installing one or two VHF/UHF antennas on a motorhome? I have a class C 25-footer in which I'd like to use...
So I'm working on a program to help with designs of LPDAs. I already have output loadable into the 3D CAD system Rhino 6. Works by simply outpting...
I live in a 50 year old apartment the thick walls prevent my HT from communicating with the world even after building loop antenna and a 40 m...
This is how they do it down under... In 2019. [MEDIA] What did you find? What will you find? What can you make from junk? RRK
Hi I'm hoping that someone can help. I have been interested in amateur radio since my school's days in the amateur radio club and have also...
I am working on a project and looking for a bit of advise as I am not an expert on this. I have two stations I am trying to communicate that are...
From what I've read about fan dipoles, one of their major shortcomings is that they are really good at radiating undesired harmonics. For...
I was looking at purchasing the QRP Guys 80/60 end fed vertical kit but it is no longer being sold. Does anyone know of a comparable kit? I'd...
Some Covid19 stay-at-home reading:...
[IMG] A cute little calculator I made for comparing the trade offs, one band to another, on skyloops of any size, and any shape, no mater how...
I am intrigued by this design and thinking of building one. It looks like one for 30 meters is about 33’ by 12’. For 20, 24’ x 9’. 40 meters...
Good Evening, Hope everyone is doing well in this time or craziness. I am looking for some sort of solution for an antenna for home and...
Wondering to what extent the Northern Lights would interfere with the 10MHz band if aiming an antenna trans-polar? This is a before-I-build-it...
For any who find on-line calculators in JavaScript a tiresome bother for having to manually enter values and click on a "calculate" button over,...
Could someone suggest a small, encapsulated relay that would be available from Newark, Mouser, DigiKey et al that meets the following criteria. I...
