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eHam Forums => Computers And Software => Topic started by: GW8FKB on January 13, 2006, 05:04:43 AM



Title: quad antenna software?
Post by: GW8FKB on January 13, 2006, 05:04:43 AM
I would like to build a large 6Mtrs Quad; any software out there or designs? thanks Arthur


Title: quad antenna software?
Post by: KE4DRN on January 13, 2006, 05:31:54 PM
hi arthur,

http://www.softcom.net/users/kd6dks/quad.html
quad calculator

Take a look at this antenna,
http://www.cebik.com/moxon/6m.html

73 james


Title: quad antenna software?
Post by: GW8FKB on January 14, 2006, 01:00:18 AM
many thanks James for the links; any id4ea how I can print out a Java page?? Arthur.


Title: quad antenna software?
Post by: KE4DRN on January 14, 2006, 09:01:53 PM
hi,

You can print the page just like any other
page by selecting print from the file menu
or press ctrl and P at the same time.

73 james


Title: quad antenna software?
Post by: GW8FKB on January 15, 2006, 01:26:27 AM
thanks del p worked fine, i tried print from 'file' and got a blanck sheet! arthur


Title: quad antenna software?
Post by: K7SU on January 31, 2006, 01:39:17 PM
http://www.softcom.net/users/kd6dks/quad.html


Title: quad antenna software?
Post by: GW8FKB on February 01, 2006, 05:24:21 AM
Many thanks for the link Kelly. Very helpful Arthur


Title: quad antenna software?
Post by: VE9TS on February 13, 2006, 05:31:48 PM
Hi, Arthur

Antenna design sowtware programs at the link below. Quad design also.

http://www.ve3sqb.com/

Best!

Mark - ve9ts


Title: quad antenna software?
Post by: WB6BYU on February 24, 2006, 02:35:25 PM
W4RNL has a number of articles on quads, along with some
design equations implemented as a BASIC program.  The wire
diameter is a critical variable - fatter wires require a
large element diameter.  Any formula that doesn't take
this into account is suspect.

You can see some of his research here:

http://www.cebik.com/quad/quadlist.html

I've built 2-, 3- and 4-element quads from his formulas
and they have all come up right on frequency without
any tuning or adjustment.


There was an article in the first issue of the ARRL Antenna
Compendium that had design charts for quads (that also
included the effect of the wire diameter.)  One of the
interesting outcomes was that quads with an odd number of
directors would have wider bandwidth and were more forgiving
to tune than those with an even number of directors.
I don't know of any software that implements his charts
and formulas, however.


Title: quad antenna software?
Post by: GW8FKB on February 25, 2006, 12:13:46 AM
thank you for the very interesting link, will print it out. al