Topband: DHDL

Martin Kratoska martin at ok1rr.com
Sun Jun 30 15:31:11 EDT 2019


oops, the images didn't come thru. See here:

http://www.ok1rr.com/public/DHDL_OPT.NEC
http://www.ok1rr.com/public/antview.png
http://www.ok1rr.com/public/dhdl_opt-ver.png
http://www.ok1rr.com/public/dhdl_opt-hor.png
http://www.ok1rr.com/public/dhdl_opt-3d.png


73,
Martin, OK1RR



Dne 30. 06. 19 v 20:51 Martin Kratoska napsal(a):
> That statement doesn't agree with my quick modeling
> 
>>> just read a few articles about DHDL antennas. One article states, the 
>>> cut off frequency where the antenna becomes useless is when the 
>>> overall length of wire reaches a 1/4WL... 
> 
> my results attached
> 
> 73,
> Martin, OK1RR
> 
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