Once upon a time I found a site that had an awesome online calculator for calculating the inductance of single layer coils where you could specify an insulated wire like #14 THHN along with coil dia,
Brian Beezley, K6STI, just added a downloadable program to his website. He passed it by me when it was in beta. http://ham-radio.com/k6sti/ Scroll to the last item in the left hand column. 73, Jim K9
Hi Gedas, I use Coil32; http://coil32.net/ Hope this helps. 73, Maximo <http://foro.ea1ddo.es/> ________________________________ De: TowerTalk <towertalk-bounces@contesting.com> en nombre de Gedas <w
Does anyone have a URL for that or something similar? TU ! Wheeler formula: L(uH) = R^2 * N^2 / (9 * R + 10 * L) R = coil radius in inches L = coil length in inches N = number of turns Wire gauge and
Brian Beezley, K6STI, just added a downloadable program to his website. He passed it by me when it was in beta. http://ham-radio.com/k6sti/ Scroll to the last item in the left hand column. 73, Jim K9
This may be helpful: http://hamwaves.com/antennas/inductance.html Rick N6RK Gedas, W8BYA _______________________________________________ _______________________________________________ TowerTalk mail
https://hamwaves.com/inductance/en/index.html#input Rob K5UJ _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contestin
It just seems for TV stuff. Could not seem to get anything to work for a large coil for 160 mtrs made of copper tubing? Terry KI7M _______________________________________________ ____________________
Hey folks, I look at these coil calculators and come to the only conclusion is the wrong question is being answered. Example: If I have 130 feet of 12 gauge multi-strand insulated house wire (from Lo
That's the one I prefer. Wes N7WS http://hamwaves.com/antennas/inductance.html Rick N6RK _______________________________________________ _______________________________________________ TowerTalk mai
I look at these coil calculators and come to the only conclusion is the wrong question is being answered. Example: If I have 130 feet of 12 gauge multi-strand insulated house wire (from Lowes) how la
If you think the wrong questions are being answered it's because those formulas assume that you either know or want to know the amount of inductance you need or have. There is no way any of those fo
If you think the wrong questions are being answered it's because those formulas assume that you either know or want to know the amount of inductance you need or have. There is no way any of those fo
Perhaps this calculator asks the questions that you are looking for: https://m0ukd.com/calculators/loaded-quarter-wave-antenna-inductance-calcula tor/ John KK9A terry burge ki7m at comcast.net Hey fo
I just got internet back on after loosing it late last night and am catching up on an entire days worth of posts. I wanted to thank everyone very much for their input. I got the answers I was looking
Folks, Perhaps I look at this a bit different than some. But this formula worked a lot better for what I wanted. Calculating the inductance needed for my 130 foot 12 gauge insulated wire fed against
For insight about silver plating see: http://k6mhe.com/n7ws/Plating.pdf I could tell a war story about nickle under gold on an X-Band waveguide IMPATT diode test oscillator. Wes N7WS And how to get
I could tell a war story about nickle under gold on an X-Band waveguide IMPATT diode test oscillator. and this: https://www.microwaves101.com/encyclopedias/skin-depth one might also find useful stuff
<It just seems for TV stuff. Could not seem to get anything to work for a large coil for 160 mtrs made of copper tubing? <Terry <KI7M close to reality ! Doesnt work, dont use it. program from the 90s
Just like K6STI's low noise receiving loop from Sept 1995 QST. Mine was no more "low noise" than a 20' piece of wire tossed out the shack window. I'd like to hear from anyone who ever got one of thos