Development and Manufacturing
Design & Engineering
Shipping and Accounting
1605 W Barrow Drive
Chandler, Arizona 85224
CCDAntennas will no longer be making the
After over 10 years of
designing, building, testing, and shipping almost 300 antennas we
are halting the line. Several reasons for this, but mostly the
two hours each it takes to make, and we just found out the wire we need
is no longer made (unless we wanted 2 miles of it).
So, with a smile, we clean up the shop knowing that
we had a great run and a LOT of guys and gals are enjoying antennas
we built for them. We do have plenty of parts left over to
supply those of you who found the local squirrel thinks the caps
look like nuts, or your neighbor cuts into it with the hedge
trimmers, or a tree falls across it. Or lightning, that
happens. So, we
will set up a set of prices and kits to repair those out in the
field for many years to come. We did build them to last so we
expect that will be a long while.
note: We are reserving the remaining parts for service to our past customers
as we mentioned above. Please don't ask us for enough parts to build
one yourself. When we put the kits up for sale we will refuse to
fulfill orders for enough kits to build a full antenna.
So long, and thanks for all the orders!
Dave (AI7R), Charlie (AD7MD), and Linda (NI7Y)
With antennas, size is everything.
Bigger is always better!
The fact is, the more metal you have in the air, the better
your antenna is going to work for you. Both transmit AND receive.
A normal half wave dipole on 40 is 66' long. Imagine one that is 114'
or even 230' but is still resonant across the entire band? An 80 meter
half wave dipole is 132; long. How about one that is 230' long
instead, but still resonant and usually under 2:1 across the entire band?
That's what is so special about our antennas. More antenna, yet still
resonant so there's no tuner needed.
Through some intensive modeling and testing we've found that
perfect set of designs to give you two bands on each antenna and both are at
least double or triple the length of a dipole for the same bands.
Bigger is better!
If you are looking for:
- A wire antenna with about 3db+ gain over a half wave dipole
- An antenna that is markedly quieter on receive...generally as quiet
as a loop or better
- Something you can mount up high, close to the ground, or even laying
ON the ground!!
- It doesn't compromise by working
marginally on all bands - it works exceptionally well on the
it's designed for.
- Handles static discharges as needed all along the antenna in
lightning and sand storms. (You should still
disconnect all antennas in lightning storms however...and before, not
- Can handle 800 watts on the band(s) it's designed
for. (note: if installing it along eaves or fence lines power should be
lowered to safe exposure levels) Many have run more power,
however, we suggest keeping it around or below this power level.
This really depends on your grounding system. People with well
grounded stations run more power without a problem. The computer
model, and actual use, shows they can easily handle 1.5KW.
For those of you who want to know how and why it
works on a technical level
please visit AD7MD's web site and get the full scoop. He's always
happy to answer questions too.
Check out reviews on
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
can be a long wire style) that has a series of
capacitors mounted along the wire on specially designed boards. The
capacitors allow us to have a impedance that is able to
be matched to ladder line or baluns while having an antenna about twice as
long as a standard half wave dipole. See the
About CCDs for more info on this.
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 that is commercial quality
and built to last!
|"Bottom line is it works very
well, and the reception is great! I made a contact with England,
right after I put it up! - Scotty, KE7NCO"
Q: What is it?
A: It's a full wave dipole
that has anywhere from 22 to 28 capacitors evenly spaced along the wire.
Q: What does 'controlled
current distribution' mean?
A: The name
is misleading because it's not really about current. It's about
bringing a full wave antenna to an impedance that can be matched with our
various feel line limitations of 50-600 ohms.
else does the antenna do other
than put more wire in the air for me?
A: Let's see, there are a lot
of interesting properties of the CCD...
- It is very quiet because of the caps keeping
static on the wire down. About as quiet as a
- It doesn't interact with metal or ground around
it as much. Run it close to a chain link
fence or flag pole and see little change in resonance. Transmission pattern may change a bit. This is
a perfect LARGE antenna that can be put under eaves, along block fences,
and other places to avoid the HOA Gestapo. Note that
a tuner would probably be required if it's mounted right against
Q: What bands are available?
A: After a
LOT of research we've found there are some bands that just don't make sense
to use CCD technology on. For example, if
someone has room for a 160 meter CCD they have room for a 160 meter loop and
on that band a loop works really well. Loops fight noise as well as a
Q: Can I use it on other bands?
With a tuner. But, receive is a very important advantage to a CCD and
it receives far better on the band(s) it is designed for. To really do
multi-band well we suggest you use ladder line feed. We do sell these
antennas without the balun and you provide the center insulator and feed
Q: Can I feed several CCDs with
the same coax? (assuming no remote antenna switch
- those work okay)
CCDs are not the harmonic animals that half wave dipoles are. Any one
band on a CCD might be relatively resonant on another band. This is
enough to mess up the match on that band even though there might be a
specific element for the band. The more you add the worse it gets.
Check out the various
magazine article collection on CCDs (you'll see it's not just us who
think these are
|"The CCD delivers on receive like
no other antenna! - Jim, KD5AY"
pretty darned dynamic antennas!)
Take a look at the coverage
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 20/40 meter antenna ready to