BATC Forum

Hi all I have lost a couple of elements off of my tonna 23 cms antennas.

Unfortunately they dont supply the amateur market anymore so I am going to 3d print the supports and use braising rod for the elements but I don't know what the length of the elements should be.

Does anyone have the plans for these antennas or a link to where to download them.

Thanks
Terry

hi i have a tonna 23 cms used at 12 49 atv 95 mm is the elent lenth if thats a help

Try here, I think there were different versions for narrow band and tv.
http://www.g1ogy.com/projects/tonna/tonna-mans.html

(Edit) You can download a PDF for the 23 element version here https://www.google.co.uk/url?sa=t&rct=j ... pxDQwKICAF

Use the PDF to work out what element colour you need and then use the chart for the 55 element to convert colour to length.

Steve

Excellent thank you.
Regards
Terry

I've been meaning to do the CAD for these replacement stalks as every time I look at mine it loses another one! My printer is busy ATM making headbands for facemasks, but I should be able to reverse engineer the clip and test print one in PETG.
Gareth

The file to print the support can be downloaded here:
https://www.thingiverse.com/thing:1585084

BR
Terry

Thank you very much for the pointer to the 3d object.

Thats what I love about BATC, always someone to help.

Cheers
Folks