[ADXA] Force 12 Delta 240 info needed

[rcurt at centurytel.net]

If it is Delta c-240, here is the manual for it. 


https://static.dxengineering.com/global/images/instructions/iva-dxc-240.pdf


Randy/W5ZJ

On Sun, 31 May, 2026 at 9:01 PM, Stan Stockton via ADXA <adxa at mailman.qth.net> wrote:
 

To: dennis schaefer
Cc: adxa at mailman.qth.net
If both the driven elements and reflector are split in the center, I would assume that the coil would go between the two halves of the reflector and the hairpin would go between the two halves of the driven element to bring the impedance of the driven element up from some lower number to 50 ohms.  I would reassemble it like that and raise it up about 40 feet and see what it looks like on an analyzer.  If it shows a good SWR too low (like below 7.0 MHz by about 50 khz you would probably be good to go as it will move higher when it is up at 60 feet or so.

I’m also assuming that the elements are identical and the reflector is resonant lower than the DE because of the coil in the center.

Stan, K5GO

> On May 31, 2026, at 8:38 PM, Dennis Schaefer via ADXA <adxa at mailman.qth.net<mailto:adxa at mailman.qth.net>> wrote:
> 
> A friend got a used Delta 240, which is a two element 40M yagi.  It is disassembled and has a hairpin and a small coil, obviously for element centers.  He isn’t sure which goes on the DE and which goes on the reflector.  
> 
> This is the one with the encapsulated loading coils.
> 
> A manual copy or any help would be appreciated.
> 
> This is for Les, KI5GTR.  He hasn’t been licensed all that long and is mainly CW contesting.  He made 1197 Q’s in WPX and I think he was practicing with Morse Runner at 37 WPM.  I’m trying to get him interested in DX’ing.
> 
> 73,
> Dennis/RZ
> ______________________________________________________________
> ADXA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/adxa
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ADXA at mailman.qth.net<mailto:ADXA at mailman.qth.net>
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
______________________________________________________________
ADXA mailing list
Home: http://mailman.qth.net/mailman/listinfo/adxa
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:ADXA at mailman.qth.net<mailto:ADXA at mailman.qth.net>

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/adxa/attachments/20260601/3f0d4b79/attachment-0001.html>