The CCD is like most other antennas in that it can work on bands it's not designed for.  It's not, however, purely harmonic like a normal dipole.  To make it easier to see how the 40 and 80 meter antennas work on other bands I have generated an SWR graph for each band.  (I left off 60 meters because they don't work there)

Keep in mind that this is just for reference and may not be exactly the same on all antennas.  Heck, even different SWR bridges will show different readings so it's more a relative reference than an exact reading.

You can look at the various bands of each to make sure your favorite bands are covered.  Although, feedback from users tell me they use both on all the bands with a tuner.  Be careful however...using a large amount of power on a band it's not designed for can strain the caps.  One person tried to load the 40 meter version up on 160 with 1 KW and blew a cap.

Of course, SWR isn't the whole story on any antenna.  How well an antenna works on receive is as important as transmit and often even more important.  Although the have a nice gain on transmit on the bands they are built for, how quiet they are, and how they seem to have some gain on receive is very important.  And this is not something you can get from a computer modeling program.  It has to be tried to be understood.

Although we show you where these antennas will load up on other bands in the charts below, it's important to understand these are really single band antennas.  You'll see they do, indeed, tune up on other bands and in many cases very nicely.  But, they will not have the same properties as a CCD on those other bands.  For example, I have a 20, 40, and 80 meter CCD up and on a switch so I can quickly compare them.  You would assume I could receive great singnals on 20 using an 80 meter antenna since it's so much longer than the 20.  Not the case!  Each antenna actually worked best on transmit and receive on the bands they are specifically designed for.

The standard build of the antennas (and those tested) are:

40 meters - 32 caps of 270pf

80 meters - 32 caps of 500pf

So, check these out!

40 meter version

80 meter version