![]() |
|||
![]() Contact information: Dave Kelley, AI7R 1605 W Barrow Drive Chandler, Arizona 85224 (480)-510-1721 ai7r@ccdantennas.com |
The CCD antenna is like nothing else on the market. And it just might be that bit of magic you've been looking for. CCD means Controlled Current Distribution. This is a full wave dipole (or long wire) that has a series of capacitors mounted along the wire on specially designed boards. The idea being that the current distribution along the entire antenna wire is relatively constant. This antenna is well worth looking into. We have a full set of articles that have appeared over the years that shows the advantages of the CCD. The disadvantage has always been that they are a total pain to build. Now, for the first time, you can have one made that is commercial quality and built to last!
Consider this. Our radios use oscillators, filters, mixers and all sorts of other things to produce and fine tune our incoming and outgoing signals. Why shouldn't we fine tune the antennas for less noise and better distribution of the power? This is why the CCD is a nice break from traditional antennas. Q : What is it?A: It's a full wave dipole that has anywhere from 24 to 48 capacitors evenly spaced along the wire. Q: What does 'controlled current distribution' mean? A: Imagine an antenna that has a fairly even amount of current across the entire antenna, not just the middle or the ends. And end effect is pretty much eliminated as well as high voltage arcing at the ends of the antennas. Q: What
does this evening out of current on the antenna do for me?
Check out the various magazine article collection on CCDs (you'll see it's not just us who think these are
pretty darned dynamic antennas!) Take a look at the coverage charts See how we build them! (yeah, messy shop, but great antennas come out of it!) Below is a peek at the capacitors as they are on the antenna. These are VERY strong antennas! Below shows a completed 40 meter antenna ready to install!!
|
||