Ccrane AM (Justice) antenna, any opinions?
N9NWO
http://www.ccrane.com/justice_antenna.asp
Justice AM Antenna With Twin Coil Ferrite™
"...[The Justice Twin Coil Antenna] makes it
possible to listen to signals which otherwise would be lost. ...It will
make insensitive AM tuners into DX machines!" — Joseph Giovanelli, Audio
Consultant
The Biggest Advancement in AM Technology in
Decades! Chris Justice has developed the best
compact AM antenna for a portable radio or home stereo. It increases
available daytime stations dramatically and reduces nighttime fade out
by 99%. The Justice AM antenna can eliminate heavy static on your radio.
In laboratory tests, the Justice antenna eliminated radio noise heavy
enough to destroy all AM signals except those from three strong local
stations, allowing listenable audio from more than a dozen stations. AM
is also subject to distortion, which makes a broadcaster sound like a
duck. The Justice reduces distortion. The Justice is the first AM
antenna designed to bring great AM reception to your home stereo.
The standard unit comes with an antenna element, tuner, and five feet
of cable to go between the antenna element and the tuner. Comes with a
ferrite patch cord for radios without antenna connectors and a patch
cord for radios with antenna connectors. The tuner can be powered by a 9
volt battery or AC adapter (included). The antenna element has an earth
ground lug, which may help to reduce radio noise in some circumstances.
If your reception problem is caused by heavy static and you find weak
stations come in better outside, installing the Justice AM Antenna
Element outside may eliminate the problem. Optional cable kits can be
ordered in 25' lengths to a maximum of 50'. Tuner Size: 3-1/4" W x
4-1/4" H x 1-1/4" D. Antennas Head Size: 8-1/2" W x 2-1/2" H x 1-1/4" D.
(Pat. Pend.)
Item #JAA
...................................$99.95
Justice Antenna with 5' cable
Dave N.
including some posts by Chris Justice (the CCRane tech who designed it). If
you go to http://www.google.com and click on the "groups" tab, then do an
advanced search for the antenna under the rec.radio.shortwave group, you
should get some good info. I'd like to try one of these antennas myself,
but just don't want to part with $100 right now.
Dave.
ManKind
>antennas myself, but just don't want to part with $100 right now.
>Dave.
>
Get yourself 2 dowels for about $1.00 at home depot and 60 feet of wire and
a tuning cap and build your own hi-q low noise directional loop antenna. I
did and it works great !
http://www.geocities.com/paris/bistro/3489/mw-loop.jpg
Might not look great but it works great. Better than the Palomar Loop which
I subsequently sold after building this. One loop is the pickup loop which
connects to coax and then your receiver. It is the center loop. The rest of
the loop is about 60 feet of wire and the ends are connected to a tuning
cap (50-300 pf or so) which resonates the loop.
--
73 !
John :)
Zoran Brlecic
> Any opinions? Will this work as reported?
> If your reception problem is caused by heavy static and you find weak
> stations come in better outside, installing the Justice AM Antenna
> Element outside may eliminate the problem.
Yeah, this one's a classic. Usually my antennas are better outside but
sometimes I can only hear dx when I move my yagi into the bathroom.
73 ......... Zoran WA7AA
Chris Justice
> but just don't want to part with $100 right now.
> Dave.
Dave,
Call me. I will send you one to test. You can try it, test it, throw
it around the house. If you like it, let me know. If you don't, no big
deal. Use it to stir soup, clean out the cat box and shock test it
with a hammer then send it back to me. :)
Chris
Jeff Makowski
Hey Chris, just a quick question. I have a Justice Antenna, and use
it with the CC Radio Plus. It significantly increases the signal
strength reading on many frequencies, especially on lower frequencies.
However, on higher frequencies in the 1100's and above the signals
get mixed together, and do not improve by rotating the antenna. Is
this normal?
Thanks, Jeff
Chris Justice
> it with the CC Radio Plus. It significantly increases the signal
> strength reading on many frequencies, especially on lower frequencies.
> However, on higher frequencies in the 1100's and above the signals
> get mixed together, and do not improve by rotating the antenna. Is
> this normal?
> Thanks, Jeff
Hello Jeff,
I haven't had any problems like you mentioned. I have however noticed
that with strong nighttime skywave propogation, tuning can be a little
difficult because of the gain of the Justice AM antenna and the
overlapping signals on the AM BCB. I regularly listen to 1530 KFBK
from Sacramento during the day and night. I live about 250 miles NW of
Sacramento and the station comes in very strong, almost like a local
station. However at night, I get a little overload from stations from
Mexico. That's just the way it goes until I figure out how to change
the ionosphere. hmmmm....
Be aware of the second harmonic when tuning the antenna. When the
receiver you are using is tuned to 1060 and the Justice antenna is
tuned to 530, the harmonic will saturate the front end and you will be
listening to 530, whether you like it or not. 530 * 2 = 1060 ---- 540
* 2 = 1080 and so on.
The tuning indicator will make it easy to eliminate this problem by
just looking at the dial face. You will also notice a sharp peak in
the audio when tuning and can actually hear the 2.6kHz passband of the
antenna. If this disappears when tuning above 1100 there could
possibly be a problem with the unit itself.
If you are still having problems above the 1100's, try using the
additional transmit ferrite on top of the radio. If all else fails,
give me a call and I will get you taken care of.
Take Care and Best Regards,
Chris Justice
Research and Development Engineer
N9NWO
Chris, I know of you as the web page CCrane mentions
that you developed this product. I am the one who started
this thread as I am thinking of buying one.
I would inside a building that gets poor reception. I
use a Sony SW 7600 that can only get the local stations.
But I do like listening to WLS in Chicago which is
some 150 miles north. Can your device help?
I am both posting this and emailing it.... N9NWO
fan
I've been using the Justice with a DX-398 for (almost) a couple of
months now and I just love it! True, it's no Kiwa Loop, but it's also
not 400 dollars.
I'm in Chicago and at night I can get stations from Boston to Dallas
and Denver, and from New Orleans to Toronto-basically all of the
stronger stations in the East and Midwest.
In the daytime I can get the stronger stations from surrounding bigger
cities like Milwaukee Wi, Grand Rapids Mi, Urbana Il, Cedar Rapids
Ia-basically a 100 mile radius.
The optional 20 ft. coax cable allows me to place the unit close to a
window and have the radio at my bedside.
Someday I'll get a Kiwa, but for now the Justice is pretty darn rockin'!
fan
Oh, and thanks Chris!
Jeff Makowski
Chris,
Thanks for the info.. I do find that using the ferrite bar works
much better than the direct connection. Also, since there is a 5kW
station about a half mile from my house, using the direct connection,
it spills over much of the dial. There is a stronger station on 1130
which probably affects some frequencies in that area too. The
difference in reception is very significant over most of the lower
part of the dial. I haven't really found that using the
select-a-tenna with the Justice makes much if any difference.
Thanks again,
Jeff
Chris Justice
Thanks for the info. You don't know how happy it makes me to know that
something I designed gives someone else pleasure. No, it's not a Kiwa
loop, but it's 10 times smaller and 5 times easier to tune, hooks up
to any radio, Oh and it has my name on it :)
Someone else posted that they think I designed the antenna. Well, yes.
The patent is in my name, the antenna was completely designed by me,
just manufactured overseas where they do a much better job than me.
Thanks for the post and Best Regards,
Chris Justice
Research and Development Engineer
CCRadio
CCRadio Plus
CCrane Stereo FM Transmitter (Wireless Audio Transfer Device)
VersaCorder
ATS909 software programming
Justice AM Antenna
Freeplay Plus radio
White LED advanced Biasing circuitry
FCD (fused capacitive discharge) lightening protection.
and many more to come................................................
A. Christian Smith
669a65ba.02011...@posting.google.com, "Chris Justice"
<skipt...@yahoo.com> came hurtling through the ether with:
<snip>
> Chris Justice
> Research and Development Engineer
>
> CCRadio
> CCRadio Plus
> CCrane Stereo FM Transmitter (Wireless Audio Transfer Device)
> VersaCorder
> ATS909 software programming
Chris,
Can you tell me/us more about the ATS-909 software programming? I know
there has been some discussion in some areas about hooking up the '909 to a
computer.....?
Thanks,
Adam
acs
----------------
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