Thanks Callum! 😊 Glad you're using it and hope it's useful. I'm M7UAC now :-) The history is there until you refresh the page, means you can re-test and see what it told you to do before.

Nice little addition to the tool box. Thanks Callum and AubsUK!

As always, thanks Callum!

Loved the drum fill.

Thanks, Cal, for the great update.

Constant evolution, good stuff Sir!

Neat! I'm still using the pen and paper to work out how much I need to cut or add. Now I can just call up your website on my phone and do it that way. 73 Ed.

Well that's very swr. Great job 👍🏽👏🏽

well done Call, thanks for nice tip. cheers!

Thanks for that Callum👍

You are The Antenna Alchemist….. 💎 💙

I've done the same with my 160 meter inverted L, where it is not "inches" you are folding back , it is more like in "feet" you fold back for it to resonate properly lol, good stuff....!

Thanks Callum, just about to tune my new DX Commander and have been reluctant until I got a set of stable SWR reading. This new calc (was using your spreadsheet) will help but I still might send you my figures as have a problem on 30m using the 80m inverted L. Regards Helen 73.

That is Fabulous!

Hello Callum , I wanted to share my findings regarding drilling holes through walls and cavities for transceiver coaxial cables . Ideally it is best to drill a 45 degree diagonal hole through the wall rather then just a direct inline hole , the reason being 45 degree provides a gradual curve cable line transmission , for cable protection & aesthetics this process will require a wide panel construction with baton frame & sheet board on the exterior of the building & possibly internally too depending on the environment situation , this installation method will inevitably require more cable length , time & material cost , alternatively the panel construction would not be required if the cable line transmission was carefully calculated through a wall cavity using a mousing line , both pilot methods will cancel out coaxial angle stress . For further RF added protection against signal loss & noise reduction the coaxial cable can be placed through a flexi steel conduit from the radio operations area , if the steel flexi conduit diameter is that of the correct size it can more or less terminate directly up to the PL259 plug to the transceiver itself , this process would be the ultimate isolation in coaxial cable line transmission . The flexi steel conduit is that of steel IP 54 PVC coated in black , it has excellent flexibility & endurance . The entire installation would require precision calculation , the steel conduit would be intersect to copper tubing on the exterior line transmission to the antenna switch unit or the antenna itself . The flexi conduit would require grounding at a convenient point . The remarkable aspect of this process is that a relatively inexpensive coaxial cable can be used , hence the entire metallic shielding , this of course is understandably subjective , ie power rating among other factors . I hope that the above has been of some interest & I think that it would be nice if you could possibly share this process to others ?, it may help some towards the radio communications hobby in one way or another .

Brilliant!🏆

Nice I was wondering about a full wave loop and you answered it near the end... multiply the 1/4 wave by FOUR. Thx Calum Art W1SWL

Very useful! Mark, 2E0MSR

Wow. If there would be inputs for initial length, initial foldover length, measured freq, desired freq and % wavelength, then one could fine tune a 5/8th with one set of measurements one cut for any velocity factor wire. So how long is antenna, foldback, measured freq, and desired % of wavelength and desired frequency.

Very nice

Excellent Thanks much Cal

Thanks bro!

Tnx for info❤

So am I right that the velocity factor of the wire is irrelevant using this calculator because with a measured resonant point the VF drops (cancels) out of the equation. Cheers Calum.

Where is the link to the new calculator? Aubsuk not found on you tube.

Link to the online calculator?

Can you share the link to AubsUK's on-line calculator? THANKS! 73 de KB3ZIM

Can you tune a fish? Lol

Calculates at the speed of light 300,000,000 and not 299,792,458?